7.如何利用掩码位图制作透明图片？\MainFrm.cpp
................................\MainFrm.h
................................\ReadMe.txt
................................\..lease\CL.read.1.tlog
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................................\.......\Test.exe
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................................\res\bitmap1.bmp
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................................\...\Test.ico
................................\...\Test.manifest
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................................\...\TestDoc.ico
................................\...\Thumbs.db
................................\...\Toolbar.bmp
................................\Resource.h
................................\stdafx.cpp
................................\stdafx.h
................................\Test.aps
................................\Test.cpp
................................\Test.h
................................\Test.ncb
................................\Test.rc
................................\Test.sdf
................................\Test.sln
................................\Test.sln.old
................................\Test.suo
................................\Test.suo.old
................................\Test.vcproj
................................\Test.vcxproj
................................\Test.vcxproj.filters
................................\Test.vcxproj.user
................................\TestDoc.cpp
................................\TestDoc.h
................................\TestView.cpp
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................................\UpgradeLog.XML
................................\_UpgradeReport_Files\Thumbs.db
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................................\....................\UpgradeReport_Minus.gif
................................\....................\UpgradeReport_Plus.gif
................................\ipch\test-eb797002
................................\ipch
................................\Release
................................\res
................................\_UpgradeReport_Files
7.如何利用掩码位图制作透明图片？