C Builder a new project set the font to Form1 "wherein V" in Form1 add a TRadioGroup components rgDrawWhat options for what painting graphics; Add a Tbutton colorBtn components and a TcolorDialog ColorDialog1 components; Add a TImage component Image1. 3, the current project will be kept in their laboratories folders exp1 Documents folder (to prevent erroneous operation and wasted). Preparation colorBtn the OnClick, ColorDialog1 activated, and access to the choice of colors : if (ColorDialog1- gt; Execute ()) Image1- gt; Canvas- gt; Pen-gt; Color = ColorDialog1- gt; Color 5, the preparation of OnImage1MouseUp Image1, call for : a) If the first odd number of pop-up mouse button, then choose rgDrawWhat the record straight section or an endpoint Center coordinates; 2) If the firs

exp1
....\Project1.bpr
....\Project1.cpp
....\Project1.exe
....\Project1.obj
....\Project1.res
....\Project1.tds
....\Unit1.cpp
....\Unit1.ddp
....\Unit1.dfm
....\Unit1.h
....\Unit1.obj

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