A game planes can be used for learning based on DirectDraw,

Invasion_src\ALPHA.BMP
............\backdrop2.bmp
............\BASETSD.H
............\Blaster.wav
............\Blub.wav
............\Ddutil.cpp
............\Ddutil.h
............\.ebug\BuildLog.htm
............\.....\Ddutil.obj
............\.....\Ddutil.sbr
............\.....\Invasion.bsc
............\.....\Invasion.exe
............\.....\Invasion.exe.embed.manifest
............\.....\Invasion.exe.embed.manifest.res
............\.....\Invasion.exe.intermediate.manifest
............\.....\Invasion.ilk
............\.....\Invasion.pdb
............\.....\mt.dep
............\.....\resource.res
............\.....\vc90.idb
............\.....\vc90.pdb
............\.....\winmain.obj
............\.....\winmain.sbr
............\DSUTIL.H
............\dsutil.hpp
............\Explosion.BMP
............\explosion.wav
............\Explosion2.bmp
............\Explosion3.bmp
............\EXTRAS.BMP
............\GameOver.wav
............\GETEXTRA.WAV
............\icon1.ico
............\INVASION.BMP
............\Invasion.dsp
............\Invasion.dsw
............\Invasion.ncb
............\Invasion.plg
............\Invasion.sln
............\Invasion.suo
............\Invasion.vcproj
............\Invasion.vcproj.hq-PC.hq.user
............\readme.txt
............\resource.aps
............\RESOURCE.H
............\resource.rc
............\SELECT.BMP
............\Ship.bmp
............\ShipExplode.BMP
............\SHOOT.BMP
............\SHOOT2.BMP
............\SHOOTUFO.BMP
............\SKID.WAV
............\STATUS.BMP
............\Tap.wav
............\Ufo.bmp
............\Ufo.hpp
............\Ufo2.bmp
............\Ufo3.BMP
............\UFOSHOOT.WAV
............\winmain.cpp
............\Debug
Invasion_src

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