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【Windows Develop】 v2204_bhipxcx DL : 0: sniffer 网络工具，够能对IP数据包及时捕获。并能识别出tcp,ip,udp等-a sniffer network tool which can capture the IP data pack timely, can identify tcp,ip,udp etc.
Update : 2008-10-13 Size : 246640 Publisher : 叶锋
【Windows Develop】一个在MFC环境中使用的 InfoZip打包类 DL : 0: InfoZip是一个功能强大的免费ZIP/UNZIP库，一个在MFC环境中使用的 InfoZip打包类-InfoZip is a powerful and free ZIP/UNZIP database, a InfoZip pack class used in MFC
Update : 2008-10-13 Size : 1345 Publisher : 吴汉
【File Operate】 cnIBS 文章管理系统 DL : 1: 全部生成静态html网页，减轻服务器负载，容易被搜索引擎收录，采用模板引擎 SMARTY 便于模板的开发，支持多数据库，数据库函数被封装成类，自检式安装界面，类似word的图文编辑器htmlArea，静态html目录存放方式可选，支持站内搜索，后台和功能块均支持模板，语言包功能，投票功能，并控制在首页显示，支持评论和评论管理，支持友情链接功能，支持投稿功能，支持投票功能，支持任意多个图形附件上传，后台提供附件动态管理，支持web在线发送邮件，后台管理，支持数据库备份，防止数据灾难性丢失，保证数据安全，支持无限级分类，任意设置，支持公告发布和管理，公告支持有效期，用户注册，投稿，文章批量删除和移动，支持用户组，模板编辑，导入功能，数据库优化，导入导出，密码修改，后台投票管理，语言包编辑，投票功能 -all generated static html website, reduce server load, easily collected by search engines, using template engine Copyright 2004-2006 templates to facilitate the development, support multiple database functions have been packaged as such, the installation of self-check-style interface, similar to word a graphic editor htmlArea, static html directory optional storage methods, support station search, background and function block support template language pack functions, voting functions, and control of the Home show support management comments and comments to support Links function, writing support functions, support functions to vote in support of a number of arbitrary Annex upload graphics , background Annex dynamic management, online support web mail, background management, database backu
Update : 2008-10-13 Size : 507117 Publisher : 张杰
【Windows Develop】 vc++编程积累 DL : 0: 不是程序，是VC开发过程中总结的一些常用功能说需要的函数并有文本代码-this pack is not one program, it is some tips, eg functions, it come from my fact using.
Update : 2008-10-13 Size : 24789 Publisher : llg
【Embeded-SCM Develop】 perl561src DL : 0: Altera recommends the following system configuration: * Pentium II 400 with 512-MB system memory (faster systems give better software performance) * SVGA monitor * CD-ROM drive * One or more of the following I/O ports: - USB port (if using Windows XP or Windows 2000) for USB-Blaster(TM) or MasterBlaster(TM) communications cables, or APU programming unit - Parallel port for ByteBlasterMV(TM) or ByteBlaster(TM) II download cables - Serial port for MasterBlaster communications cable * TCP/IP networking protocol installed * Windows 2000, Windows NT 4.0 with Service Pack 3 or later, or Windows XP * Internet Explorer 5.0 or later Memory & Disk Space Requirements USB开发--Altera recommends the following system configuration:* Pentium II 400 with 512-MB system memory (faster systems give better software performance) * SVGA monitor * CD-ROM drive * One or more of the following I/O ports: - USB port (if using Windows XP or Windows 2000) for USB-Blaster(TM) or MasterBlaster(TM) communications cables, or APU programming unit - Parallel port for ByteBlasterMV(TM) or ByteBlaster(TM) II download cables - Serial port for MasterBlaster communications cable * TCP/IP networking protocol installed * Windows 2000, Windows NT 4.0 with Service Pack 3 or later, or Windows XP * Internet Explorer 5.0 or later Memory & Disk Space Requirements USB development
Update : 2008-10-13 Size : 7299705 Publisher : 周元平
【OpenGL program】 Jvav三维动画演示系统 DL : 0: 首先安装JRE，再安装java3d包(Java 3D包的文件名为java3d-1_3_1-windows-i586-opengl-sdk.exe,可以到百度，GOOGLE和北大天网上去搜索这个文件，就会有下载的)。默认情况下java3d包会安装在你的$\\JBuilder9\\jdk1.4\\目录下。会在$\\JBuilder9\\jdk1.4\\jre\\lib\\ext\\下添加几个jar文件，会在$\\JBuilder9\\jdk1.4\\demo\\目录下添加一个java3d目录，里面是例子。如果安装没有问题，打开目录 $\\JBuilder9\\jdk1.4\\demo\\java3d\\HelloUniverse\\下的网页HelloUniverse.html应该可以正常显示。-first install the JRE, install java3d Pack (Java 3D package of documents called java3d - 1_3_1-windows-i586 - opengl - sdk.exe can go to Baidu, Google and Beijing University days of the Internet to search the file, then you will have to download). Default under java3d package will be installed in your $ \\ JBuilder9 \\ jdk1.4 \\ directory. The $ \\ JBuilder9 \\ jdk1.4 \\ jre \\ lib \\ ext \\ Add several jar document, the $ \\ JBuilder9 \\ jdk1.4 \\ demo \\ directory add a java3d directory, there's example. If you have no problem, open directory $ \\ JBuilder9 \\ jdk1.4 \\ demo \\ java3d \\ HelloUniverse \\ HelloUniverse.html the website should be able to display normal.
Update : 2008-10-13 Size : 560338 Publisher : 温厚
【SDK】图书管理系统 DL : 0: import java.awt.*; import javax.swing.*; import java.awt.event.*; public class BookManageMain{ public void main(String[] args){ Frame f = new Frame("图书管理系统");//super("图书管理系统"); MenuBar Menub = new MenuBar(); //系统管理子菜单 Menu jMenuSystem = new Menu("系统管理"); MenuItem jMenuItemLogin = new MenuItem("用户登录"); Menu jMenuUserManage = new Menu("用户管理"); MenuItem jMenuFileExit = new MenuItem("退出"); MenuItem jMenuItemuseradd = new MenuItem("添加用户"); MenuItem jMenuItemuserupdate = new MenuItem("修改用户"); MenuItem jMenuItemuserdelete = new MenuItem("删除用户"); jMenuItemLogin.addActionListener(this); jMenuFileExit.addActionListener(this); jMenuItemuseradd.addActionListener(this); jMenuItemuserupdate.addActionListener(this); jMenuItemuserdelete.addActionListener(this); Menub.add(jMenuSystem); //书籍管理子菜单 Menu jMenuBookManage = new Menu("书籍管理"); MenuItem jMenuItemBookAdd = new MenuItem("添加书籍信息"); MenuItem jMenuItemBookUpdate = new MenuItem("修改书籍信息"); MenuItem jMenuItemBookDelete = new MenuItem("删除书籍信息"); jMenuItemBookAdd.addActionListener(this); jMenuItemBookUpdate.addActionListener(this); jMenuItemBookDelete.addActionListener(this); Menub.add(jMenuBookManage); //借书管理子菜单 Menu jMenuBorrowBook = new Menu("借书管理"); MenuItem jMenuItemBookBorrow = new MenuItem("书籍出借"); MenuItem jMenuItemBookBorrowUpdate = new MenuItem("出借信息修改"); jMenuItemBookBorrow.addActionListener(this); jMenuItemBookBorrowUpdate.addActionListener(this); Menub.add(jMenuBorrowBook); //还书管理子菜单 Menu jMenuReturnBook = new Menu("还书管理"); MenuItem jMenuItemBookReturn = new MenuItem("书籍还入"); MenuItem jMenuItemBookReturnUpdate = new MenuItem("书籍还入信息修改"); jMenuItemBookReturn.addActionListener(this); jMenuItemBookReturnUpdate.addActionListener(this); Menub.add(jMenuReturnBook); //信息一览子菜单 Menu jMenuAllInfo = new Menu("信息一览"); MenuItem jMenuItemAllBook = new MenuItem("书籍列表"); MenuItem jMenuItemAllRead = new MenuItem("借阅者列表"); MenuItem jMenuItemAllInfo = new MenuItem("借阅情况列表"); jMenuItemAllBook.addActionListener(this); jMenuItemAllRead.addActionListener(this); jMenuItemAllInfo.addActionListener(this); Menub.add(jMenuAllInfo); f.setMenuBar(Menub); Menub.add(jMenuSystem); Menub.add(jMenuBookManage); //jMenuSystem.addSeparator(); Menub.add(jMenuBorrowBook); Menub.add(jMenuReturnBook); Menub.add(jMenuAllInfo); jMenuSystem.add(jMenuItemLogin); jMenuSystem.addSeparator();//分割线 jMenuSystem.add(jMenuUserManage); jMenuSystem.addSeparator(); jMenuSystem.add(jMenuFileExit); jMenuUserManage.add(jMenuItemuseradd); jMenuUserManage.addSeparator(); jMenuUserManage.add(jMenuItemuserupdate); jMenuUserManage.addSeparator(); jMenuUserManage.add(jMenuItemuserdelete); jMenuBookManage.add(jMenuItemBookAdd); jMenuBookManage.addSeparator(); jMenuBookManage.add(jMenuItemBookUpdate); jMenuBookManage.addSeparator(); jMenuBookManage.add(jMenuItemBookDelete); jMenuBorrowBook.add(jMenuBookBorrow); jMenuBorrowBook.addSeparator(); jMenuBorrowBook.add(jMenuBookBorrowUpdate); jMenuReturnBook.add(jMenuItemBookReturn); jMenuReturnBook.addSeparator(); jMenuReturnBook.add(jMenuItemBookReturnUpdate); jMenuAllInfo.add(jMenuItemAllBook); jMenuAllInfo.addSeparator(); jMenuAllInfo.add(jMenuItemAllRead); jMenuAllInfo.addSeparator(); jMenuAllInfo.add(jMenuItemAllInfo); f.setSize(800,600); //f.setBounds(400,400,600,800); f.setVisible(true); f.show(); } //设置初始状态 /* jMenuUserManage.setEnabled(false); jMenuBookManage.setEnabled(false); jMenuBorrowBook.setEnabled(false); jMenuReturnBook.setEnabled(false); jMenuAllInfo.setEnabled(false); */ } /* public void this_windowOpened(WindowEvent e){ setEnable("else"); jMenuItemLogin dlg = new jMenuItemLogin(this); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize=getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); }*/ public void actionPerformed(ActionEvent e){ if(e.getActionCommand()= "用户登录") {jMenuItemLogin dlg = new jMenuItemLogin(this); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand()="添加用户") {jMenuItemuseradd dlg= new jMenuItemuseradd(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="修改用户") {jMenuItemuserupdate dlg = new jMenuItemuserupdate(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="删除用户") { jMenuItemuserdelete dlg = new jMenuItemuserdelete(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show();} else if(e.getActionCommand="添加书籍信息") { jMenuItemBookAdd dlg = new jMenuItemBookAdd(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="修改书籍信息") { jMenuItemBookUpdate dlg=new jMenuItemBookUpdate(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="删除书籍信息") {jMenuItemBookDelete dlg= new jMenuItemBookDelete(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="书籍出借") { jMenuItemuBookBorrow dlg = new jMenuItemuBookBorrow(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="出借信息修改") {jMenuItemuBookBorrowUpdate dlg= new jMenuItemuBookBorrowUpdate(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="书籍还入") { jMenuItemBookReturn dlg=new jMenuItemBookReturn(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommond="书籍还入信息修改") { jMenuItemBookReturnUpdate dlg= new jMenuItemBookReturnUpdate(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommond="书籍列表") { jMenuItemAllBook dlg=new jMenuItemAllBook(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommond="借阅者列表") { jMenuItemAllRead dlg = new jMenuItemAllRead(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="借阅情况列表") { jMenuItemAllInfo dlg = new jMenuItemAllInfo(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="借阅情况列表") { AllInfo dlg=new allinfo(); Dimension dlgSize = dlg.getPreferredSize(); Dimension frmSize = getSize(); Point loc = getLocation(); dlg.setLocation((frmSize.width-dlgSize.width)/2+loc.x,(frmSize.height-dlgSize.height)/2+loc.y); dlg.pack(); dlg.show(); } else if(e.getActionCommand="退出") { this.dispose(); System.exit(0); } 图书管理系统
Update : 2009-11-19 Size : 560040 Publisher : pangshu1221
【SQL Server】中文版SQL Server2000开发与管理应用实例 DL : 0: 第 1 章　安装和配置SQL Server　1 1.1　SQL Server的版本和版本选择　1 1.2　安装SQL Server的常见问题　3 1.3　如何理解实例　5 1.4　如何实现无值守安装　5 1.5　Desktop Engine　9 1.5.1　MSDE 2000概述　9 1.5.2　获取MSDE 2000　9 1.5.3　安装MSDE 2000　10 1.5.4　管理MSDE 2000　11 1.5.5　支持的并发用户数和数据库容量　12 1.6　SQL Server Service Pack　12 1.6.1　确定已安装SQL Server的版本　12 1.6.2　SQL Server Service Pack 4介绍　13 1.6.3　SQL Server Service Pack 4的内容　13 1.6.4　安装SQL Server Service Pack 4的常见问题　14 1.7　SQL Server服务　15 1.8　服务账户　15 1.9　影响SQL Server运行的设置　18 1.9.1　内存配置　18 1.9.2　数据存储　20 第 2 章　日期处理　23 2.1　日期类型概述　23 2.2　日期处理函数　25 2.2.1　日期增减函数　25 2.2.2　日期信息获取函数　26 2.2.3　日期差值计算函数　27 2.2.4　其他日期处理相关函数　27 2.3　日期选项设置　29 2.3.1　default language选项　30 2.3.2　SET DATEFIRST　31 2.3.3　SET DATEFORMAT　31 2.3.4　SET LANGUAGE　33 2.4　日期格式化与日期推算处理　34 2.4.1　日期格式化处理　34 2.4.2　日期推算处理　35 2.4.3　日期加减处理　38 2.5　日期处理实例　40 2.5.1　生日处理　40 2.5.2　生成日期列表　42 2.5.3　工作日处理　46 2.5.4　工作时间计算　49 2.6　日期处理疑难解答　51 2.6.1　日期处理中常犯的错误　51 2.6.2　常见的低效率日期处理方法　52 2.6.3　日期与数字　53 第 3 章　字符处理　55 3.1　字符类型概述　55 3.2　字符串分拆　56 3.2.1　循环截取法　57 3.2.2　动态Transact-SQL语句法　57 3.2.3　辅助表法　59 3.2.4　分拆数据到列　61 3.2.5　分拆数字数据　62 3.2.6　分拆短信数据　63 3.3　字符串合并　64 3.3.1　游标合并法　65 3.3.2　SELECT语句合并法　66 3.3.3　临时表合并法　68 3.3.4　固定行合并法　69 3.4　其他字符串处理要求　70 3.4.1　分段截取　70 3.4.2　分段更新　72 3.4.3　IP地址处理　72 3.5　字符串分拆与合并处理应用实例　74 3.5.1　字符串比较　74 3.5.2　字符串交集/并集　75 3.5.3　分拆字符串并统计　78 3.5.4　借用字符串实现无规律排序　82 3.5.5　列车车次查询　82 3.6　字符串在动态Transact-SQL语句中的应用　85 3.6.1　动态Transact-SQL语句概述　85 3.6.2　字符串在编号查询中的使用　87 3.6.3　动态参数存储过程　90 3.6.4　动态Transact-SQL语句中常见问题　92 3.7　text与ntext字段处理　96 3.7.1　text与ntext数据的存储　96 3.7.2　管理text与ntext数据　97 3.7.3　text与ntext字段的复制和合并　99 3.7.4　text与image字段转换　101 3.7.5　ntext字段的REPLACE处理　103 第 4 章　排序规则　107 4.1　字符存储编码与排序规则　107 4.1.1　字符数据的存储编码　107 4.1.2　UNICODE　108 4.1.3　排序规则　109 4.1.4　排序规则比较和排列规则　111 4.1.5　使用排序规则　112 4.1.6　如何选择字符字段类型　116 4.2　排序规则应用　117 4.2.1　拼音处理　117 4.2.2　全角与半角字符处理　120 第 5 章　编号处理　123 5.1　自动编号　123 5.1.1　IDENTITY　123 5.1.2　ROWGUIDCOL　129 5.2　手工编号　131 5.2.1　查表法　131 5.2.2　独立编号表法　135 5.2.3　随机编号　139 5.3　缺号与补号　143 5.3.1　检查缺号　143 5.3.2　补号处理　143 5.3.3　编号重排　146 5.4　编号查询　150 5.4.1　已用编号分布查询　150 5.4.2　缺号分布查询　151 5.4.3　生成已用编号和缺号分布字符串　152 5.4.4　缺勤天数统计　155 第 6 章　数据统计与汇总　159 6.1　基本查询　159 6.1.1　空(NULL)值对查询的影响　159 6.1.2　联接　161 6.1.3　UNION与UNION ALL　165 6.1.4　数据填充查询　167 6.1.5　上限与下限区间统计　169 6.1.6　随机记录查询　170 6.2　分级汇总　173 6.2.1　实现分级汇总处理　173 6.2.2　分级汇总结果的过滤　176 6.2.3　分级汇总结果显示格式处理　177 6.2.4　分级汇总结果的排序处理　179 6.3　交叉数据报表　181 6.3.1　实现原理　181 6.3.2　多列转置　184 6.3.3　动态列　185 6.3.4　动态列中的字符溢出处理　188 6.3.5　特殊的交叉报表　191 6.4　典型数据统计案例　193 6.4.1　库存明细账查询　193 6.4.2　同期及上期数据对比　197 6.4.3　动态分组统计　199 6.4.4　销售排行榜　200 第 7 章　分页处理　205 7.1　应用程序中的分页处理　205 7.2　数据库中的分页处理　207 7.2.1　使用TOP N实现分页　207 7.2.2　使用字符串　211 7.2.3　使用临时表　213 7.2.4　使用SQL Server的系统存储过程处理分页　216 7.3　特殊要求的分页处理　217 7.3.1　随机显示的分页处理　217 7.3.2　分类数据的分页处理　221 第 8 章　树形数据处理　223 8.1　单编号处理法　223 8.1.1　方法概述　223 8.1.2　逐级汇总　225 8.1.3　编码重排　226 8.1.4　调整编码规则　229 8.1.5　调整编码隶属关系　233 8.2　双编号处理法　238 8.2.1　方法概述　239 8.2.2　树形数据排序　240 8.2.3　查找子节点　244 8.2.4　查找父节点　245 8.2.5　编码校验　246 8.2.6　节点复制　249 8.2.7　节点删除　251 8.2.8　逐级汇总　253 8.3　树形数据的扩展形式　256 8.3.1　产品配件清单　256 8.3.2　公交车乘车线路查询　258 第 9 章　数据导入与导出　261 9.1　访问外部数据　261 9.1.1　链接服务器　261 9.1.2　OPENROWSET与OPENDATASOURCE　268 9.1.3　外部数据访问方法总结　270 9.2　文本文件的导入与导出　274 9.2.1　查询文本文件内容　274 9.2.2　BCP与BULK INSERT　277 9.3　导入与导出中的常见问题　285 9.3.1　访问外部数据的注意事项　285 9.3.2　使用BCP或者BULK INSERT时的注意事项　286 9.3.3　外部数据文件位置及文件访问权限问题　287 9.4　在客户端实现SQL Server数据导入与导出处理　288 9.4.1　在Access数据库中实现与SQL Server之间的数据交换　288 9.4.2　实现客户端其他OLE DB数据源与SQL Server之间的数据交换　289 9.4.3　在客户端实现SQL Server数据导入与导出处理的一些说明　289 9.5　在数据库中存取文件　290 9.5.1　SQL Server中的文件存取方法　290 9.5.2　程序中的文件存取处理方法　292 第 10 章　作业　295 10.1　作业概述　295 10.1.1　定义作业　295 10.1.2　使用系统存储过程定义作业的常用模板　300 10.2　作业的应用　303 10.2.1　定时启用(或者停用)数据库　303 10.2.2　执行耗时的存储过程　304 10.2.3　秒级作业　305 10.3　使用作业的疑难解答　309 第 11 章　数据备份与还原　315 11.1　数据库备份与还原方法介绍　315 11.1.1　完全备份与还原　315 11.1.2　差异备份与还原　317 11.1.3　日志备份与还原　319 11.1.4　数据文件或文件组备份与还原　320 11.1.5　备份设备　321 11.1.6　数据库恢复模型对数据库备份和还原的影响　322 11.2　制订数据库备份方案　326 11.2.1　备份方案制订原则　326 11.2.2　建立数据备份方案　327 11.3　数据库备份与还原的实践应用　332 11.3.1　系统数据库的备份与还原　332 11.3.2　数据库迁移　336 11.3.3　部分数据库还原　339 11.3.4　抢救损坏数据库中的数据　341 11.3.5　将数据还原到指定时间点　343 11.3.6　将数据还原到指定标记点　345 11.3.7　同步备用服务器　346 11.4　数据备份与还原疑难解答　349 11.4.1　数据备份与还原中的常见问题　349 11.4.2　使用媒体集备份时的常见问题　354 11.4.3　数据库还原中的孤立用户问题　356 11.4.4　查询备份文件中的信息　360 第 12 章　用户定义数据类型　361 12.1　用户定义数据类型概述　361 12.1.1　创建和删除用户定义数据类型　361 12.1.2　为用户定义的数据类型绑定规则　365 12.1.3　为用户定义的数据类型绑定默认值　370 12.2　修改用户定义数据类型　373 12.2.1　修改被表引用的用户定义数据类型　373 12.2.2　修改被存储过程引用的用户定义数据类型　379 第 13 章　数据库安全　383 13.1　SQL Server的存取构架　383 13.1.1　表格格式数据流(TDS)　383 13.1.2　Net-Library与网络协议　384 13.1.3　Net-Library加密　387 13.2　用户管理　388 13.2.1　身份验证模式　388 13.2.2　登录、用户、角色和组　390 13.2.3　管理用户　395 13.3　数据文件安全　403 13.4　SQL Server安全配置　405 13.4.1　安全配置建议　405 13.4.2　使用安全套接字层(SSL)加密　408 13.5　应用程序上的安全　417 13.5.1　防止SQL注入式攻击　417 13.5.2　限制应用程序访问　418 13.5.3　不安全的扩展存储过程　419 第 14 章　系统表应用实例　423 14.1　系统对象概述　423 14.1.1　每个数据库中都存在的系统表　424 14.1.2　仅在系统数据库中存在的系统表　424 14.1.3　系统表应用中三个重要的系统存储过程　426 14.2　系统表在对象信息检索中的应用　429 14.2.1　搜索指定的对象所处的数据库　429 14.2.2　获取存储过程参数定义　432 14.2.3　搜索指定字符在哪个表的哪个字段中　435 14.2.4　非UNICODE字段改为UNICODE字段的可行性查询　438 14.2.5　字段相关对象查询　439 14.2.6　生成数据库字典　443 14.3　系统对象在处理中的应用　444 14.3.1　批量处理数据库中的对象　444 14.3.2　将所有的char、varchar改为nchar、nvarchar　445 14.3.3　标识列与普通列的相互转换　447 14.3.4　把列添加指定位置　450 14.3.5　在两个SQL Server数据库之间复制对象　451 第 15 章　SQL Server应用疑难解答　455 15.1　访问SQL Server实例的常见问题　455 15.1.1　连接失败　455 15.1.2　用户登录失败　458 15.1.3　测试连接到SQL Server实例的方法总结　458 15.1.4　超时　459 15.1.5　单用户的问题　460 15.1.6　默认数据库问题　461 15.2　索引中的疑难解答　462 15.2.1　索引对查询条件的影响　462 15.2.2　索引对查询结果顺序的影响　465 15.2.3　索引对数据操作的影响　469 15.3　数据库日志疑难解答　470 15.3.1　影响日志文件增长的因素　471 15.3.2　从事务日志中删除日志记录　472 15.3.3　日志文件处理中的误区　472 15.3.4　合理解决日志文件增长　473 15.4　错误处理疑难解答　474 15.4.1　错误处理概述　474 15.4.2　错误处理严重程度　475 15.4.3　使用@@ERROR的疑难解答　476 15.4.4　XACT_ABORT与RAISERROR的疑难解答　477 15.5　游标处理疑难解答　479 15.5.1　全局游标与本地游标　479 15.5.2　检查指定的游标是否存在　480 15.5.3　事务提交或者回滚对游标的影响　482 15.5.4　可更新的游标　483 15.6　SQL Server处理中的其他疑难解答　484 15.6.1　并发工作负荷调控器　484 15.6.2　存储过程中的疑难解答　486 15.6.3　标识值疑难解答　488 15.6.4　全文检索疑难解答　491 15.6.5　发布与订阅中的常见问题　494 15.6.6　其他疑难解答　496
Update : 2009-03-17 Size : 282206 Publisher : star_lgx@163.com
【Internet-Network】一个判断远程主机存活程序代码 DL : 0: 一个判断远程主机存活程序代码(ping) #include #include #include #include #include "winsock.h" #pragma comment(lib,"Ws2_32"); #define SEND_SIZE 32 #define PACKET_SIZE 4096 #define ICMP_ECHO 8 #define ICMP_ECHOREPLY 0 struct icmp { unsigned char icmp_type; unsigned char icmp_code; unsigned short icmp_cksum; unsigned short icmp_id; unsigned short icmp_seq; unsigned long icmp_data; }; struct ip { unsigned char ip_hl:4; unsigned char ip_v:4; unsigned char ip_tos; unsigned short ip_len; unsigned short ip_id; unsigned short ip_off; unsigned char ip_ttl; unsigned char ip_p; unsigned short ip_sum; unsigned long ip_src; unsigned long ip_dst; }; unsigned char sendpacket[PACKET_SIZE]; unsigned char recvpacket[PACKET_SIZE]; struct sockaddr_in dest_addr; struct sockaddr_in from_addr; int sockfd; int pid; unsigned short cal_chksum(unsigned short *addr,int len); int pack(int pack_no); int unpack(unsigned char *buf,int len); void send_packet(void); void recv_packet(void); void main(int argc,char *argv[]) { struct hostent *host; struct protoent *protocol; WSADATA wsaData; int timeout=1000; int SEND_COUNT=4; int i; char *par_host; par_host=argv[argc-1]; //IP赋值 switch(argc) { case 2: break; case 3: if(strcmp(argv[1],"-t")==0) { SEND_COUNT=10000; break; } //fall through default: printf("usage: %s [-t] Host name or IP address\n",argv[0]); exit(1); } if(WSAStartup(0x1010,&wsaData)!=0) { printf("wsastartup error\n"); exit(1); } if( (protocol=getprotobyname("icmp") )==NULL) { printf("getprotobyname error\n"); exit(1); } /* printf("%s\n",protocol->p_name); printf("%s\n",protocol->p_aliases); printf("%d\n",protocol->p_proto); system("pause"); */ if( (sockfd=socket(AF_INET,SOCK_RAW,protocol->p_proto) )<0) { printf("socket error\n"); exit(1); } if(setsockopt(sockfd,SOL_SOCKET,SO_RCVTIMEO,(char*)&timeout,sizeof(timeout))h_length); //resolve address to hostname if(host=gethostbyaddr(host->h_addr,4,PF_INET)) par_host=host->h_name; // //printf("%s\n",par_host); // } else if( dest_addr.sin_addr.s_addr=inet_addr(par_host)==INADDR_NONE) { printf("Unkown host %s\n",par_host); exit(1); } pid=getpid(); /* printf("%d\n",pid); system("pause"); */ printf("Pinging %s [%s]: with %d bytes of data:\n\n",par_host,inet_ntoa(dest_addr.sin_addr),SEND_SIZE); for(i=0;i1) { sum+=*w++; nleft-=2; } if( nleft==1) { *(unsigned char *)(&answer)=*(unsigned char *)w; sum+=answer; } sum=(sum>>16)+(sum&0xffff); sum+=(sum>>16); answer=~sum; return answer; } //打包 int pack(int pack_no) { int packsize; struct icmp *icmp; packsize=8+SEND_SIZE; icmp=(struct icmp*)sendpacket; icmp->icmp_type=ICMP_ECHO; icmp->icmp_code=0; icmp->icmp_cksum=0; icmp->icmp_seq=pack_no; icmp->icmp_id=pid; icmp->icmp_data=GetTickCount(); icmp->icmp_cksum=cal_chksum( (unsigned short *)icmp,packsize); /*校验算法*/ return packsize; } //解包 int unpack(unsigned char *buf,int len) { struct ip *ip; struct icmp *icmp; double rtt; int iphdrlen; ip=(struct ip *)buf; iphdrlen=ip->ip_hl*4; icmp=(struct icmp *)(buf+iphdrlen); if( (icmp->icmp_type==ICMP_ECHOREPLY) && (icmp->icmp_id==pid) ) { len=len-iphdrlen-8; rtt=GetTickCount()-icmp->icmp_data; printf("Reply from %s: bytes=%d time=%.0fms TTL=%d icmp_seq=%u\n", inet_ntoa(from_addr.sin_addr), len, rtt, ip->ip_ttl, icmp->icmp_seq); return 1; } return 0; } //发送 void send_packet() { int packetsize; static int pack_no=0; packetsize=pack(pack_no++); if( sendto(sockfd,(char *)sendpacket,packetsize,0,(struct sockaddr *)&dest_addr,sizeof(dest_addr) )=0) success=unpack(recvpacket,n); else if (WSAGetLastError() == WSAETIMEDOUT) { printf("Request timed out.\n"); return; } }while(!success); } UID5380 帖子239 精华0 积分1289 阅读权限40 来自软件学院在线时间81 小时注册时间2006-5-22 最后登录2007-2-24 查看详细资料 TOP
Update : 2009-05-29 Size : 5881 Publisher : shuiyuan313
【Develop Tools】 Delphi7_Lite_Full_20110501 DL : 0: 【Borland是一家令人敬仰的公司,當值Borland已成往事之際,謹以此產品獻給曾經的Borland,紀念已經仙逝的Borland,藉以緬懷Borland傳奇中的經(精)典Delphi7.本產品僅供學習交流之用,未與任何盈利為目的,請勿用於任何非法的商業用途,否則後果自負.】 Delphi7 Lite,簡約而不簡單,一次安裝,到處運行.內含4彈:Tiny/Mini/Meduim/Full,功能和體積由小至大,力求達到功能和體積的完美平衡.已作性能優化及優量精簡,含安裝/綠色便攜版二合一,集成了部分常用高效的IDE專家及外掛程式,致力於把Delphi7打造成一個現代化(相對而言)的整合式開發環境,使用本產品將使你在開發效率/使用體驗/系統相容性等方面上相對原版有大幅提高. 关键特性: 一次安裝,到處運行.第一次需安裝,以後每次只需註冊即可. 已安裝集成現在所有可用的升級補丁(至Delphi7 Update 1.1,IDE版本號為Build 8.1),集成目前絕大多數的Bug Fix Pack. 支援現在所有正在使用的Windows版本:Windows7, 2008 R2, Vista, XP, 2008, 2003, 2000, Me, 98, 和 NT 4.0,支援非管理員許可權使用者安裝,支援UAC. 特別地對Windows7提供全面支援. 去除了所有多餘的安裝選項但保留了原始程式碼選項,移除了非必需的檔(ModelMaker,InterBase,MergeModules,Extra Docs,Images,MDAC等). 採用安裝後動態編譯生成RTL,VCL的DCU檔,極大的減小了安裝檔體積. 可選將Delphi7 RTL/VCL替換為Delphi2007 的RTL/VCL,讓Delphi7支援Delphi2007新增的Vista屬性. 可選將Delphi7 RTL/VCL 恢復為使用官方原始的源碼檔,僅供用於部分協力廠商元件兼容性的可能需要(不推薦). 安裝程式是設計為可重複安裝的.您在安裝新版本時,如果安裝程式沒有特別指明,則不需要先刪除舊的版本,直接升級即可,所有設置都會保留,原Delphi安裝的控制項及設置等會自動導入新安裝IDE環境中. 安裝程式內置了可直接選擇的”綠色便攜版安裝模式”,使用此模式安裝後目的檔案夾即成為一個可移動的綠色版,實現徹底的名符其實的”安裝/綠色便攜版二合一”. 安裝程式自帶獨立的綠化註冊程式(D7LiteReg.exe),方便您快速地恢復Delphi7開發環境(控制項/專家/設置).直接複製整個Delphi目錄,再執行D7LiteReg.exe即可完成Delphi的註冊工作.同樣方法可適用于對其它Delphi7版本進行綠化註冊,如Delphi7 SECOND EDITION v7.2. 安裝程式支援”使用現有的原始程式碼重編譯安裝(僅覆蓋安裝時有效)”或”使用外部的Delphi7-source原始程式碼來編譯安裝”,更多詳情請查看說明. 安裝程式帶附加的命令列功能.支援對已安裝程式的功能表/註冊表/雜項進行修復,使用命令列參數/?或/help查看更多詳情. 安裝程式支援附加的命令列參數以實現額外功能.支援對已安裝Delphi7程式的功能表/註冊表/雜項進行修復,常用的命令列參數已直接集成到了安裝程式中,在視窗中點擊右鍵或使用命令列參數/?或/help查看更多詳情. 安裝程式會根據安裝目的機器性能自動選擇不同的安裝元件. 安裝程式支援多語言介面(含中文簡體/繁體/英文). 同時可選僅替換為Delphi2007中windows相關pas,以支援XP/Vista API及視窗屬性,不同于完全替換Delphi2007 RTL/VCL,能最大程度保持Delphi7的相容性的同時支援vista的新API及視窗屬性. 代碼編輯器顏色方案設為Delphi2006樣式. 包含程式設計專用字體Consolas (推薦字體大小為10並且啟用ClearType). IDE及VCL預設字體由原先的MS Sans Serif改為Tahoma,介面看上去更為美觀. 可選擇修改Delphi IDE本身支援XP風格,在設計時即可見到程式運行的XP效果,所見即所得. 集成DelphiZLib 1.2.5(ZLibEx.pas),可選擇升級內置的ZLib 1.04至ZLib 1.2.5. 集成VCL Fix Pack 1.4,需要在工程中手動引用單元VCLFixPack.pas. 集成Midas Speed Fix 1.2,需要在工程中手動引用單元MidasSpeedFix.pas. 集成以下來自www.delphi-jedi.org的擴展的Win32Api單元: SHELL LITE :: Microsoft Shell Lightweight Utility API, v.1.2/SNMP :: Microsoft headers for Simple Network Management Protocol definitions/WINSOCK 2 :: Winsock 2 API (Windows Sockets). 集成MySQL Driver for DBExpress，支援MySQL 3.22/4.0/4.1/5.0 驅動程式. 集成Newly Delphi Features Extented Components,移植自Delphi7以后版本新增的控制項,如Vista Dialogs等,讓Delphi7也可以開發Vista風格對話方塊的程式. 包含下列專家或工具(依據版本不同有所差異): Delphi IDE 外掛程式 DelphiSpeedUp 3.1.(IDE加速). Delphi IDE 外掛程式 DDevExtensions 2.3.(增強IDE中工程的設置及編譯,可為工程增加不同版本編譯配置如release/debug版). Delphi 專家 GExperts 1.34 Experimental.(超級IDE專家). Delphi 專家 DelforExp 2.5.(代碼格式化工具). Delphi 專家 UnitExpert(提高IDE單元操作效率工具). Delphi 專家 CnWizards 0.9.7.599.(由中國人開發的超級IDE專家,支援原始程式碼結構高亮連線顯示,能自動備份恢復已安裝控制項資訊,製作自己綠化版delphi的好工具). Delphi 工具 DelphiDistiller 1.85.(選擇IDE啟動時載入的控制項及設置工具). Spy工具Microsoft Spy++ v7.1和Spy4Win (Spy for Window) v0.20b. EXE/DLL依賴關係分析工具Dependency Walker 2.2. DLL匯出函數檢視器DLL Export Viewer v1.42. BDE (Borland Database Engine 5.2), 及相關工具BDE Administrator, SQL Explorer, Database Desktop, SQL Monitor, Data Pump等. BDE 示例資料庫(別名DBDEMOS).
Update : 2011-06-16 Size : 77731415 Publisher : ygman@qq.com
【Sniffer Package capture】 wpd pack DL : 0: 可以用于截获网络中的TCP，UDP，ARP等包！
Update : 2011-12-06 Size : 613 Publisher : wangbadan079
【Windows Develop】 Senfore_DragDrop_v4.1 DL : 0: Drag and Drop Component Suite Version 4.1 Field test 5, released 16-dec-2001 ?1997-2001 Angus Johnson & Anders Melander http://www.melander.dk/delphi/dragdrop/ ------------------------------------------- Table of Contents: ------------------------------------------- 1. Supported platforms 2. Installation 3. Getting started 4. Known problems 5. Support and feedback 6. Bug reports 7. Upgrades and bug fixes 8. Missing in this release 9. New in version 4.x 10. TODO 11. Licence, Copyright and Disclaimer 12. Release history ------------------------------------------- 1. Supported platforms: ------------------------------------------- This release supports Delphi 4-6 and C++ Builder 4-5. Earlier versions of Delphi and C++ Builder will not be supported. If you need Delphi 3 or C++ Builder 3 support you will have to revert to version 3.7 of the Drag and Drop Component Suite. The library has been tested on NT4 service pack 5 and Windows 2000. Windows 95, 98, ME and XP should be supported, but has not been tested. Linux and Kylix are not supported. There are *NO* plans to port the library to Kylix. The drag and drop protocols available on Linux are too much of a mess at this time. ------------------------------------------- 2. Installation: ------------------------------------------- 1) Before you do anything else, read the "Known problems" section of this document. 2) Install the source into a directory of your choice. The files are installed into three directories: DragDrop DragDrop\Components DragDrop\Demo 3) Install and compile the appropriate design time package. The design time packages are located in the Components directory. Each version of Delphi and C++ Builder has its own package; DragDropD6.dpk for Delphi 6, DragDropD5.dpk for Delphi 5, DragDropC5.bpk for C++ Builder 5, etc. 4) Add the Drag and Drop Component Suite components directory to your library path. 5) Load the demo project group: demo\dragdrop_delphi.bpg for Delphi 5 and 6 demo\dragdrop_bcb4.bpg for C++ Builder 4 demo\dragdrop_bcb5.bpg for C++ Builder 5 The project group contains all the demo applications. 6) If your version of Delphi does not support text format DFM files (e.g. Delphi 4 doesn't), you will have to use the convert.exe utility supplied with Delphi to convert all the demo form files to binary format. A batch file, convert_forms_to delphi_4_format.bat, is supplied in the demo directory which automates the conversion process. The C++ Builder demo forms are distributed in binary format. 7) If upgrading from a previous version of the Drag and Drop Component Suite, please read the document "upgrading_to_v4.txt" before you begin working on your existing projects. Note about "Property does not exist" errors: Since all demos were developed with the latest version of Delphi, most of the demo forms probably contains references to properties that doesn't exist in earlier versions of Delphi and C++ Builder. Because of this you will get fatal run-time errors (e.g. "Error reading blahblahblah: Property does not exist.") if you attemt to run the demos without fixing this problem. Luckily it is very easy to make the forms work again; Just open the forms in the IDE, then select "Ignore All" when the IDE complains that this or that property doesn't exist and finally save the forms. ------------------------------------------- 3. Getting started: ------------------------------------------- It is recommended that you start by running each of the demo applications and then look through the demo source. Each demo application is supplied with a readme.txt file which briefly describes what the demo does and what features it uses. The demos should be run in the order in which they are listed in the supplied project group. Even if you have used previous versions of the Drag and Drop Component Suite it would be a good idea to have a quick look at the demos. The library has been completely rewritten and a lot of new features has been added. ------------------------------------------- 4. Known problems: ------------------------------------------- * The Shell Extension components does not support C++ Builder 4. For some strange reason the components causes a link error. * There appear to be sporadic problems compiling with C++ Builder 5. Several user have reported that they occasionally get one or more of the following compiler errors: [C++ Error] DragDropFile.hpp(178): E2450 Undefined structure '_FILEDESCRIPTORW' [C++ Error] DropSource.hpp(135): E2076 Overloadable operator expected I have not been able to reproduce these errors, but I believe the following work around will fix the problem: In the project options of *all* projects which uses these components, add the following conditional define: NO_WIN32_LEAN_AND_MEAN The define *must* be made in the project options. It is not sufficient to #define it in the source. If you manage to compile with C++ Builder (any version), I would very much like to know about it. * Delphi's and C++ Builder's HWND and THandle types are not compatible. For this reason it might be nescessary to cast C++ Builder's HWND values to Delphi's THandle type when a HWND is passed to a function. E.g.: if (DragDetectPlus(THandle(MyControl->Handle), Point(X, Y))) { ... } * Virtual File Stream formats can only be pasted from the clipboard with live data (i.e. FlushClipboard/OleFlushClipboard hasn't been called on the data source). This problem affects TFileContentsStreamOnDemandClipboardFormat and the VirtualFileStream demo. This is believed to be a bug in the Windows clipboard and a work around hasn't been found yet. * Asynchronous targets appears to be broken in the current release. * When TDropFileTarget.GetDataOnEnter is set to True, the component doesn't work with WinZip. Although the file names are received correctly by TDropFileTarget, WinZip doesn't extract the files and the files thus can't be copied/moved. This is caused by a quirk in WinZip; Apparently WinZip doesn't like IDataObject.GetData to be called before IDropTarget.Drop is called. ------------------------------------------- 5. Support and feedback: ------------------------------------------- Since these components are freeware they are also unsupported. You are welcome to ask for help via email, but I cannot guarantee that I will have time to help you or even reply to your mail. If you absolytely can't live without my help, you can alway try bribing me. You can also try asking for help in the Delphi newsgroups. Since the Drag and Drop Component Suite is in widespread use, there's a good chance another user can help you. I recommend the following newsgroups for issues regarding this library (or COM based Drag/Drop in general): borland.public.delphi.winapi borland.public.delphi.thirdparty-tools borland.public.delphi.oleautomation borland.public.cppbuilder.winapi borland.public.cppbuilder.thirdparty-tools Please choose the most appropiate newsgroup for your question. Do not cross post to them all. Before posting to the newsgroups, I suggest you try to search for an answer on the Google (DejaNews) search engine: http://groups.google.com Chances are that your question has been asked and answered before. If you have suggestions for improvements please mail them to me: anders@melander.dk Please include the words "Drag Drop" in the subject of any email regarding these components. ------------------------------------------- 6. Bug reports: ------------------------------------------- Bugs can either be reported at my home page (http://www.melander.dk/) or mailed directly to me: anders@melander.dk. When reporting a bug, please provide the following information: * The exact version of the Drag and Drop Component Suite you are using. * The exact version of Delphi or C++ Builder you are using. * The name and exact version of your operating system (e.g. NT4 SP5). * The exact version of the Internet Explorer installed on your system. If you can provide me with a minimal application which reproduces the problem, I can almost guarantee that I will be able to fix the problem in very short time. Please supply only the source files (pas, dfm, dpr, dof, res, etc.) and mail them as a single zip file. If I need a compiled version I will ask for it. If you feel you need to send me a screen shot, please send it in GIF or PNG format. If you mail a bug report to me, please include the words "Drag Drop" in the subject of your email. ------------------------------------------- 7. Upgrades and bug fixes: ------------------------------------------- Upgrades can be downloaded from my home page: http://www.melander.dk/delphi/dragdrop/ Bug fixes will also be posted to the above page. If you have registered for update notification via the installation program, you will receive email notification when a new release is available. You will not be notified of bug fixes. You can use the installation program to check for and download new releases and to check for known bugs. Note: If a new release is made available and you are not notified even though you registered for notification, you probably mistyped your email address during installation; About 10% of all registrations supply an invalid email address. ------------------------------------------- 8. Missing in this release: ------------------------------------------- * On-line help has not been updated and included in the kit due to late changes in the Delphi 6 help system and lack of time. If time permits, I will update the help and include it in a future release. ------------------------------------------- 9. New in version 4.x: ------------------------------------------- * Completely redesigned and rewritten. Previous versions of the Drag and Drop Component Suite used a very monolithic design and flat class hierachy which made it a bit cumbersome to extend the existing components or implement new ones. Version 4 is a complete rewrite and redesign, but still maintains compatibility with previous versions. The new V4 design basically separates the library into three layers: 1) Clipboard format I/O. 2) Data format conversion and storage. 3) COM Drag/Drop implementation and VCL component interface. The clipboard format layer is responsible for reading and writing data in different formats to and from an IDataObject interface. For each different clipboard format version 4 implements a specialized class which knows exactly how to interpret the clipboard format. For example the CF_TEXT (plain text) clipboard format is handled by the TTextClipboardFormat class and the CF_FILE (file names) clipboard format is handled by the TFileClipboardFormat class. The data format layer is primarily used to render the different clipboard formats to and from native Delphi data types. For example the TTextDataFormat class represents all text based clipboard formats (e.g. TTextClipboardFormat) as a string while the TFileDataFormat class represents a list of file names (e.g. TFileClipboardFormat) as a string list. The conversion between different data- and clipboard formats is handled by the same Assign/AssignTo mechanism as the VCLs TPersistent employes. This makes it possible to extend existing data formats with support for new clipboard formats without modification to the existing classes. The drag/drop component layer has several tasks; It implements the actual COM drag/drop functionality (i.e. it implements the IDropSource, IDropTarget and IDataObject interfaces (along with several other related interfaces)), it surfaces the data provided by the data format layer as component properties and it handles the interaction between the whole drag/drop framework and the users code. The suite provides a multitude of different components. Most are specialized for different drag/drop tasks (e.g. the TDropFileTarget and TDropFilesSource components for drag/drop of files), but some are either more generic, handling multiple unrelated formats, or simply helper components which are used to extend the existing components or build new ones. * Support for Delphi 6. Version 4.0 was primarily developed on Delphi 6 and then ported back to previous versions of Delphi and C++ Builder. * Support for Windows 2000 inter application drag images. On Windows platforms which supports it, drag images are now displayed when dragging between applications. Currently only Windows 2000 supports this feature. On platforms which doesn't support the feature, drag images are only displayed whithin the source application. * Support for Windows 2000 asynchronous data transfers. Asynchronous data tranfers allows the drop source and targets to perform slow transfers or to transfer large amounts of data without blocking the user interface while the data is being transfered. For platforms other than Windows 2000, the new TDropSourceThread class can be used to provide similar (but more limited) asynchronous data transfer capabilities. * Support for optimized and non-optimized move. When performing drag-move operations, it is now possible to specify if the target (optimized move) or the source (non-optimized move) is responsible for deleting the source files. * Support for delete-on-paste. When data is cut to the clipboard, it is now possible to defer the deletion of the source data until the target actually pastes the data. The source is notified by an event when the target pastes the data. * Extended clipboard support. All formats and components (both source and target) now support clipboard operations (copy/cut/paste) and the VCL clipboard object. * Support for shell drop handlers. The new TDropHandler component can be used to write drop handler shell extensions. A drop handler is a shell extension which is executed when a user drags and drops one or more files on a file associated wth your application. * Support for shell drag drop handlers. The new TDragDropHandler component can be used to write drag drop handler shell extensions. A drag drop handler is a shell extension which can extend the popup menu which is displayed when a user drag and drops files with the right mouse button. * Support for shell context menu handlers. The new TDropContextMenu component can be used to write context menu handler shell extensions. A context menu handler is a shell extension which can extend the popup menu which is displayed when a user right-clicks a file in the shell. * Drop sources can receive data from drop targets. It is now possible for drop targets to write data back to the drop source. This is used to support optimized-move, delete-on-paste and inter application drag images. * Automatic re-registration of targets when the target window handle is recreated. In previous versions, target controls would loose their ability to accept drops when their window handles were recreated by the VCL (e.g. when changing the border style or docking a form). This is no longer a problem. * Support for run-time definition of custom data formats. You can now add support for new clipboard formats without custom components. * Support for design-time extension of existing source and target components. Using the new TDataFormatAdapter component it is now possible to mix and match data formats and source and target components at design time. E.g. the TDropFileTarget component can be extended with URL support. * It is now possible to completely customize the target auto-scroll feature. Auto scroling can now be completely customized via the OnDragEnter, OnDragOver, OnGetDropEffect and OnScroll events and the public NoScrollZone and published AutoScroll properties. * Multiple target controls per drop target component. In previous versions you had to use one drop target component per target control. With version 4, each drop target component can handle any number of target controls. * It is now possible to specify the target control at design time. A published Target property has been added to the drop target components. * Includes 20 components: - TDropFileSource and TDropFileTarget Used for drag and drop of files. Supports recycle bin and PIDLs. - TDropTextSource and TDropTextTarget Used for drag and drop of text. - TDropBMPSource and TDropBMPTarget Used for drag and drop of bitmaps. - TDropPIDLSource and TDropPIDLTarget Used for drag and drop of PIDLs in native format. - TDropURLSource and TDropURLTarget Used for drag and drop of internet shortcuts. - TDropDummyTarget Used to provide drag/drop cursor feedback for controls which aren't registered as drop targets. - TDropComboTarget (new) Swiss-army-knife target. Accepts text, files, bitmaps, meta files, URLs and file contents. - TDropMetaFileTarget (new) Target which can accept meta files and enhanced meta files. - TDropImageTarget (new) Target which can accept bitmaps, DIBs, meta files and enhanced meta files. - TDragDropHandler (new) Used to implement Drag Drop Handler shell extensions. - TDropHandler (new) Used to implement Shell Drop Handler shell extensions. - TDragDropContext (new) Used to implement Shell Context Menu Handler shell extensions. - TDataFormatAdapter (new) Extends the standard source and target components with support for extra data formats. An alternative to TDropComboTarget. - TDropEmptySource and TDropEmptyTarget (new) Target and source components which doesn't support any formats, but can be extended with TDataFormatAdapter components. * Supports 27 standard clipboard formats: Text formats: - CF_TEXT (plain text) - CF_UNICODETEXT (Unicode text) - CF_OEMTEXT (Text in the OEM characterset) - CF_LOCALE (Locale specification) - 'Rich Text Format' (RTF text) - 'CSV' (Tabular spreadsheet text) File formats: - CF_HDROP (list of file names) - CF_FILEGROUPDESCRIPTOR, CF_FILEGROUPDESCRIPTORW and CF_FILECONTENTS (list of files and their attributes and content). - 'Shell IDList Array' (PIDLs) - 'FileName' and 'FileNameW' (single filename, used for 16 bit compatibility). - 'FileNameMap' and 'FileNameMapW' (used to rename files, usually when dragging from the recycle bin) Image formats: - CF_BITMAP (Windows bitmap) - CF_DIB (Device Independant Bitmap) - CF_METAFILEPICT (Windows MetaFile) - CF_ENHMETAFILE (Enhanced Metafile) - CF_PALETTE (Bitmap palette) Internet formats: - 'UniformResourceLocator' and 'UniformResourceLocatorW' (Internet shortcut) - 'Netscape Bookmark' (Netscape bookmark/URL) - 'Netscape Image Format' (Netscape image/URL) - '+//ISBN 1-887687-00-9::versit::PDI//vCard' (V-Card) - 'HTML Format' (HTML text) - 'Internet Message (rfc822/rfc1522)' (E-mail message in RFC822 format) Misc. formats: - CF_PREFERREDDROPEFFECT and CF_PASTESUCCEEDED (mostly used by clipboard) - CF_PERFORMEDDROPEFFECT and CF_LOGICALPERFORMEDDROPEFFECT (mostly used for optimized-move) - 'InShellDragLoop' (used by Windows shell) - 'TargetCLSID' (Mostly used when dragging to recycle-bin) * New source events: - OnGetData: Fired when the target requests data. - OnSetData: Fired when the target writes data back to the source. - OnPaste: Fired when the target pastes data which the source has placed on the clipboard. - OnAfterDrop: Fired after the drag/drop operation has completed. * New target events: - OnScroll: Fires when the target component is about to perform auto-scroll on the target control. - OnAcceptFormat: Fires when the target component needs to determine if it will accept a given data format. Only surfaced in the TDropComboTarget component. * 8 new demo applications, 19 in total. ------------------------------------------- 10. TODO (may or may not be implemented): ------------------------------------------- * Async target demo (with and without IAsyncOperation support). * Scrap file demo. * Native Outlook message format. * Structured storage support (IStorage encapsulation). ------------------------------------------- 11. Licence, Copyright and Disclaimer: ------------------------------------------- The Drag and Drop Component Suite is Copyright ?1997-2001 Angus Johnson and Anders Melander. All rights reserved. The software is copyrighted as noted above. It may be freely copied, modified, and redistributed, provided that the copyright notice(s) is preserved on all copies. The Drag and Drop Component Suite is freeware and we would like it to remain so. This means that it may not be bundled with commercial libraries or sold as shareware. You are welcome to use it in commercial and shareware applications providing you do not charge for the functionality provided by the Drag and Drop Component Suite. There is no warranty or other guarantee of fitness for this software, it is provided solely "as is". You are welcome to use the source to make your own modified components, and such modified components may be distributed by you or others if you include credits to the original components, and do not charge anything for your modified components. ------------------------------------------- 12. Version 4 release history: ------------------------------------------- 16-dec-2001 * Ported to C++ Builder 4. * Released for test as v4.1 FT5. 12-dec-2001 * Fixed C++ Builder name clash between TDropComboTarget.GetMetaFile and the GetMetaFile #define in wingdi.h 1-dec-2001 * The IAsyncOperation interface is now also declared as IAsyncOperation2 and all references to IAsyncOperation has been replaced with IAsyncOperation2. This was done to work around a bug in C++ Builder. Thanks to Jonathan Arnold for all his help with getting the components to work with C++ Builder. Without Jonathan's help version 4.1 would prabably have shipped witout C++ Builder support and certainly without any C++ Builder demos. * Demo applications for C++ Builder. The C++ Builder demos were contributed by Jonathan Arnold. 27-nov-2001 * TCustomDropTarget.Droptypes property renamed to DropTypes (notice the case). Thanks to Krystian Brazulewicz for spotting this. 24-nov-2001 * The GetURLFromString function in the DragDropInternet unit has been made public due to user request. 21-nov-2001 * Modified MakeHTML function to comply with Microsoft's description of the CF_HTML clipboard format. * Added MakeTextFromHTML function to convert CF_HTML data to plain HTML. Provides the reverse functionality of MakeHTML. * Added HTML support to TTextDataFormat class and TDropTextSource and TDropTextTarget components. * Fixed C++ Builder 5 problem with IAsyncOperation. * Released for test as v4.1 FT4. 10-nov-2001 * Added NetscapeDemo demo application. Demonstrates how to receive messages dropped from Netscape. This demo was sponsored by ThoughtShare Communications Inc. * Released for test as v4.1 FT3. 23-oct-2001 * Conversion priority of TURLDataFormat has been changed to give the File Group Descritor formats priority over the Internet Shortcut format. This resolves a problem where dropping an URL on the desktop would cause the desktop to assume that an Active Desktop item was to be created instead of an Internet Shortcut. Thanks to Allen Martin for reporting this problem. By luck this modification also happens to work around a bug in Mozilla and Netscape 6; Mozilla incorrectly supplies the UniformResourceLocator clipboard format in unicode format instead of ANSI format. Thanks to Florian Kusche for reporting this problem. * Added support for TFileGroupDescritorWClipboardFormat to TURLDataFormat. * Added declaration of FD_PROGRESSUI to DragDropFormats. * Added TURLWClipboardFormat which implements the "UniformResourceLocatorW" (a.k.a. CFSTR_INETURLW) clipboard format. Basically a Unicode version of CFSTR_SHELLURL/CFSTR_INETURL. The TURLWClipboardFormat class isn't used anywhere yet but will probably be supported by TURLDataFormat (and thus TDropURLTarget/TDropURLSource) in a later release. * Added experimental Shell Drag Image support. This relies on undodumented shell32.dll functions and probably won't be fully support before v4.2 (if ever). See InitShellDragImage in DropSource.pas. Thanks to Jim Kueneman for bringning these functions to my attention. 13-oct-2001 * TCustomDropSource.Destroy and TCustomDropMultiSource.Destroy changed to call FlushClipboard instead of EmptyClipboard. This means that clipboard contents will be preserved when the source application/component is terminated. * Added clipboard support to VirtualFileStream demo. * Modified VirtualFileStream demo to work around clipboard quirk with IStream medium. * Modified TCustomSimpleClipboardFormat to disable TYMED_ISTORAGE support by default. At present TYMED_ISTORAGE is only supported for drop targets and enabling it by default in TCustomSimpleClipboardFormat.Create caused a lot of clipboard operations (e.g. copy/paste of text) to fail. Thanks to Michael J Marshall for bringing this problem to my attention. * Modified TCustomSimpleClipboardFormat to read from the the TYMED_ISTREAM medium in small (1Mb) chunks and via a global memory buffer. This has resultet in a huge performance gain (several orders of magnitude) when transferring large amounts of data via the TYMED_ISTREAM medium. 3-oct-2001 * Fixed bug in TCustomDropSource.SetImageIndex. Thanks to Maxim Abramovich for spotting this. * Added missing default property values to TCustomDropSource. Thanks to Maxim Abramovich for spotting this. * DragDrop.pas and DragDropContext.pas updated for Delphi 4. * Reimplemented utility to convert DFM form files from Delphi 5/6 test format to Delphi 4/5 binary format. * Improved unregistration of Shell Extensions. Shell extension now completely (and safely) remove their registry entries when unregistered. * Deprecated support for C++ Builder 3. * Released for test as v4.1 FT2. 25-sep-2001 * Rewritten ContextMenuHandlerShellExt demo. The demo is now actually a quite useful utility which can be used to register and unregister ActiveX controls, COM servers and type libraries. It includes the same functionality as Borland's TRegSvr utility. 20-sep-2001 * Added support for cascading menus, ownerdraw and menu bitmaps to TDropContextMenu component. * Modified TFileContentsStreamOnDemandClipboardFormat to handle invalid parameter value (FormatEtcIn.lindex) when data is copied to clipboard. This works around an apparent bug in the Windows clipboard. Thanks to Steve Moss for reporting this problem. * Modified TEnumFormatEtc class to not enumerate empty clipboard formats. Thanks to Steve Moss for this improvement. 1-sep-2001 * Introduced TCustomDropTarget.AutoRegister property. The AutoRegister property is used to control if drop target controls should be automatically unregistered and reregistered when their window handle is recreated by the VCL. If AutoRegister is True, which is the default, then automatic reregistration will be performed. This property was introduced because the hidden child control, which is used to monitor the drop target control's window handle, can have unwanted side effects on the drop target control (e.g. TToolBar). * Deprecated support for Delphi 3. 22-jun-2001 * Redesigned TTextDataFormat to handle RTF, Unicode, CSV and OEM text without conversion. Moved TTextDataFormat class to DragDropText unit. Added support for TLocaleClipboardFormat. * Surfaced new text formats as properties in TDropTextSource and TDropTextTarget. Previous versions of the Text source and target components represented all supported text formats via the Text property. In order to enable users to handle the different text formats independantly, the text source and target components now has individual properties for ANSI, OEM, Unicode and RTF text formats. The text target component can automatically synthesize some of the formats from the others (e.g. OEM text from ANSI text), but applications which previously relied on all formats being represented by the Text property will have to be modified to handle the new properties. * Added work around for problem where TToolBar as a drop target would display the invisible target proxy window. * Fixed wide string bug in WriteFilesToZeroList. Thanks to Werner Lehmann for spotting this. 15-jun-2001 * Added work-around for Outlook Express IDataObject.QueryGetData quirk. 3-jun-2001 * Ported to C++ Builder 4 and 5. * Added missing DragDropDesign.pas unit to design time packages. * First attempt at C++ Builder 3 port.... failed. * Improved handling of oversized File Group Descriptor data. * Added support for IStorage medium to TFileContentsStreamClipboardFormat. This allows the TDropComboTarget component to accept messages dropped from Microsoft Outlook. This work was sponsored by ThoughtShare Communications Inc. 23-may-2001 * Ported to Delphi 4. * First attempt at C++ Builder 5 port.... failed. 18-may-2001 * Released as version 4.0. Note: Version 4.0 was released exclusively on the Delphi 6 Companion CD. * ContextMenuDemo and DropHandlerDemo application has been partially rewritten and renamed. ContextMenuDemo is now named ContextMenuHandlerShellExt. DropHandlerDemo is now named DropHandlerShellExt. * TDropContextMenu component has been rewitten. The TDropContextMenu now implements a context menu handler shell extension. In previous releases it implemented a drag drop handler shell extension. * The DragDropHandler.pas unit which implements the TDropHandler component has been renamed to DropHandler.pas. * Added new TDragDropHandler component. The new component, which lives in the DragDropHandler unit, is used to implement drag drop handler shell extensions. * Added DragDropHandlerShellExt demo application. * Removed misc incomplete demos from kit. * Fixed minor problem in VirtualFileStream demo which caused drops from the VirtualFile demo not to transfer content correctly. 11-may-2001 * Converted all demo forms to text DFM format. This has been nescessary to maintain compatibility between all supported versions of Delphi. * Fixed a bug in GetPIDLsFromFilenames which caused drag-link of files (dtLink with TDropFileSource) not to work. * Added readme.txt files to some demo applications. * Added missing tlb and C++ Builder files to install kit. * Released as FT4. 6-may-2001 * Added missing dfm files to install kit. * Tested with Delphi 5. Fixed Delphi 5 compatibility error in main.dfm of DragDropDemo. * Removed misc compiler warnings. * The AsyncTransferTarget and OleObjectDemo demos were incomplete and has been removed from the kit for the V4.0 release. The demos will be included in a future release. * Released as FT3. 3-may-2001 * Added missing dpr and bpg files to install kit. * Updated readme.txt with regard to lack of C++ Builder demos. * Released as FT2. 29-apr-2001 * Cleaned up for release. * Released as FT1. 23-feb-2001 * Modified TCustomDropTarget.FindTarget to handle overlapping targets (e.g. different targets at the same position but on different pages of a page control or notebook). Thanks to Roger Moe for spotting this problem. 13-feb-2001 * Renamed AsyncTransfer2 demo to AsyncTransferSource. * Added AsyncTransferTarget demo. * Replaced TChart in AsyncTransfer2 demo with homegrown pie-chart-thing. * Modified all IStream based target formats to support incremental transfer. * URW533 problem has finally been fixed. The cause of the problem, which is a bug in Delphi, was found by Stefan Hoffmeister. * Fixed free notification for TDropContextmenu and TDataFormatAdapter. 27-dec-2000 * Moved TVirtualFileStreamDataFormat and TFileContentsStreamOnDemandClipboardFormat classes from VirtualFileStream demo to DragDropFormats unit. * Added TClipboardFormat.DataFormat and TClipboardFormats.DataFormat property. * Added TDropEmptySource and TDropEmptyTarget components. These are basically do-nothing components for use with TDataFormatAdapter. * Rewritten AsyncTransfer2 demo. The demo now uses TDropEmptySource, TDataFormatAdapter and TVirtualFileStreamDataFormat to transfer 10Mb of data with progress feedback. * Rewritten VirtualFileStream demo. The demo now uses TDropEmptySource, TDropEmptyTarget, TDataFormatAdapter and TVirtualFileStreamDataFormat. * Fixed memory leak in TVirtualFileStreamDataFormat. This leak only affected the old VirtualFileStream demo. * Added support for full File Descriptor attribute set to TVirtualFileStreamDataFormat. It is now possible to specify file attributes such as file size and last modified time in addition to the filename. I plan to add similar features to the other classes which uses FileDescriptors (e.g. TDropFileSource and TDropFileTarget). 21-dec-2000 * Ported to Delphi 4. * Added workaround for design bug in either Explorer or the clipboard. Explorer and the clipboard's requirements to the cursor position of an IStream object are incompatible. Explorer requires the cursor to be at the beginning of stream and the clipboard requires the cursor to be at the end of stream. 15-dec-2000 * Fixed URW533 problem. I'll leave the description of the workaround in here for now in case the problem resurfaces. 11-dec-2000 * Fixed bug in filename to PIDL conversion (GetPIDLsFromFilenames) which affected TDropFileTarget. Thanks to Poul Halgaard J鴕gensen for reporting this. 4-dec-2000 * Added THTMLDataFormat. * Fixed a a few small bugs which affected clipboard operations. * Added {$ALIGN ON} to dragdrop.inc. Apparently COM drag/drop requires some structures to be word alligned. This change fixes problems where some of the demos would suddenly stop working. * The URW533 problem has resurfaced. See the "Known problems" section below. 13-nov-2000 * TCopyPasteDataFormat has been renamed to TFeedbackDataFormat. * Added support for the Windows 2000 "TargetCLSID" format with the TTargetCLSIDClipboardFormat class and the TCustomDropSource.TargetCLSID property. * Added support for the "Logical Performed DropEffect" format with the TLogicalPerformedDropEffectClipboardFormat class. The class is used internally by TCustomDropSource. 30-oct-2000 * Added ContextMenu demo and TDropContextMenu component. Demonstrates how to customize the context menu which is displayed when a file is dragged with the right mouse button and dropped in the shell. * Added TCustomDataFormat.GetData. With the introduction of the GetData method, Data Format classes can now be used stand-alone to extract data from an IDataObject. 20-oct-2000 * Added VirtualFileStream demo. Demonstrates how to use the "File Contents" and "File Group Descritor" clipboard formats to drag and drop virtual files (files which doesn't exist physically) and transfer the data on-demand via a stream. 14-oct-2000 * Added special drop target registration of TCustomRichEdit controls. TCustomRichEdit needs special attention because it implements its own drop target handling which prevents it to work with these components. TCustomDropTarget now disables a rich edit control's built in drag/drop handling when the control is registered as a drop target. * Added work around for Windows bug where IDropTarget.DragOver is called regardless that the drop has been rejected in IDropTarget.DragEnter. 12-oct-2000 * Fixed bug that caused docking to interfere with drop targets. Thanks to G. Bradley MacDonald for bringing the problem to my attention. 30-sep-2000 * The DataFormats property has been made public in the TCustomDropMultiTarget class. * Added VirtualFile demo. Demonstrates how to use the TFileContentsClipboardFormat and TFileGroupDescritorClipboardFormat formats to drag and drop a virtual file (a file which doesn't exist physically). 28-sep-2000 * Improved drop source detection of optimized move. When an optimized move is performed by a drop target, the drop source's Execute method will now return drDropMove. Previously drCancel was returned. The OnAfterDrop event must still be used to determine if a move operation were optimized or not. * Modified TCustomDropTarget.GetPreferredDropEffect to get data from the current IDataObject instead of from the VCL global clipboard. 18-sep-2000 * Fixed bug in DropComboTarget caused by the 17-sep-2000 TStreams modification. 17-sep-2000 * Added AsyncTransfer2 demo to demonstrate use of TDropSourceThread. * Renamed TStreams class to TStreamList. 29-aug-2000 * Added TDropSourceThread. TDropSourceThread is an alternative to Windows 2000 asynchronous data transfers but also works on other platforms than Windows 2000. TDropSourceThread is based on code contributed by E. J. Molendijk. 24-aug-2000 * Added support for Windows 2000 asynchronous data transfers. Added IAsyncOperation implementation to TCustomDropSource. Added TCustomDropSource.AllowAsyncTransfer and AsyncTransfer properties. 5-aug-2000 * Added work around for URW533 compiler bug. * Fixed D4 and D5 packages and updated a few demos. Obsolete DropMultiTarget were still referenced a few places. * Documented work around for C++ Builder 5 compiler error. See the Known Problems section later in this document for more information. 2-aug-2000 * The package files provided in the kit is now design-time only packages. In previous versions, the packages could be used both at design- and run-time. The change was nescessary because the package now contains design-time code. * Added possible work around for suspected C++ Builder bug. The bug manifests itself as a "Overloadable operator expected" compile time error. See the "Known problems" section of this document. * Rewrote CustomFormat1 demo. * Added CustomFormat2 demo. * TDataDirection members has been renamed from ddGet and ddSet to ddRead and ddWrite. * All File Group Descritor and File Contents clipboard formats has been moved from the DragDropFile unit to the DragDropFormats unit. * File Contents support has been added to TTextDataFormat. The support is currently only enabled for drop sources. * Renamed TDropMultiTarget component to TDropComboTarget. Note: This will break applications which uses the TDropMultiTarget component. You can use the following technique to port application from previous releases: 1) Install the new components. 2) Repeat step 3-8 for all units which uses the TDropMultiTarget component. 3) Make a backup of the unit (both pas and dfm file) just in case... 4) Open the unit in the IDE. 5) In the .pas file, replace all occurances of "TDropMultiTarget" with "TDropComboTarget". 6) View the form as text. 7) Replace all occurances of "TDropMultiTarget" with "TDropComboTarget". 8) Save the unit. * Renamed a lot of demo files and directories. * Added work around for yet another bug in TStreamAdapter. * Added TCustomStringClipboardFormat as new base class for TCustomTextClipboardFormat. This changes the class hierachy a bit for classes which previously descended from TCustomTextClipboardFormat: All formats which needs zero termination now descend from TCustomTextClipboardFormat and the rest descend from TCustomStringClipboardFormat. Added TrimZeroes property. Fixed zero termination bug in TCustomTextClipboardFormat and generally improved handling of zero terminated strings. Disabled zero trim in TCustomStringClipboardFormat and enabled it in TCustomTextClipboardFormat. 23-jul-2000 * Improved handling of long file names in DropHandler demo. Added work around for ParamStr bug. * Added TDataFormatAdapter component and adapter demo. TDataFormatAdapter is used to extend the existing source and target components with additional data format support without modifying them. It can be considered an dynamic alternative to the current TDropMultiTarget component. 17-jul-2000 * TDropHandler component and DropHandler demo fully functional. 14-jul-2000 * Tested with C++ Builder 5. * Fixed sporadic integer overflow bug in DragDetectPlus function. * Added shell drop handler support with TDropHandler component. This is a work in progress and is not yet functional. 1-jul-2000 * Tested with Delphi 4. * Support for Windows 2000 inter application drag images. * TRawClipboardFormat and TRawDataFormat classes for support of arbitrary unknown clipboard formats. The classes are used internally in the TCustomDropSource.SetData method to support W2K drag images.
Update : 2011-12-21 Size : 2130304 Publisher : smj_9547
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Update : 2024-05-18 Size : 370688 Publisher : 鞠文彬
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Update : 2024-05-18 Size : 11264 Publisher : 天堂
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【WEB Code】印象聊天室NowChat v2.2 DL : 0: 主要的重大更新为：1.无性能损失支持模版2.无性能损失支持多国语言(可自己制作语言包,根据访问者操作系统返回相应页面)3.支持用户分组,以及权限分配4.支持多种数据库5.自由定义NBCode6.性能大幅度提升7.公开部分代码-major major update : 1. No performance loss support template 2. No performance loss support multiple languages (which can produce their own language pack, according to visitors to return to the operating system corresponding pages) 3. User support groups, as well as the distribution of competences 4. Support for multiple databases 5 . NBCode6 definition of freedom. Performance improved significantly 7. some open source
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