??VC++6.0 MFC??????

???????BMP??

?VC++6.0 MFC?????????????MFC???????BMP?????????????

???????AppWizard?????????MFC??????????ImageProcessing?

????????????File????Open??????BMP???

????????ImageProcessingView.cpp???ShowBitmap?????LoadImage??????????StretchBlt???????????

??????????OnFileOpen??????FileDialog?????????????ShowBitmap???????

??????OnDraw??????????????.bmp??????ShowBitmap???????

????BMP???????

?????BMP?????????????????????????????????????????

???????????ImageProcessingView.h?????????????????????????????????????ReadBmp?SaveBmp???

????????ReadBmp??????fread????BMP?????????????????????????????????????

????????SaveBmp??????fwrite?????????????????????????????

????????OnDraw??????ReadBmp????????????ShowBitmap???????

????????

????????????????????????????????????????????????

??????????ImageProcessingView.h?????????ConvertGray???OnDraw?????????

????????ConvertGray???????????????????????????????

????????Gray = 0.299 * R + 0.587 * G + 0.144 * B

????????Gray = (R + G + B) / 3

?????Gray = (R * 28 + G * 151 + B * 77) >> 8

????????OnDraw????????????????????????????????

????????

????????????????????????????????????

??????????????????????Level 2?Level 4?Level 8????????????????

??????????OnLh2?OnLh4?????????????????????????Level 2????????????Level 4???????

????????OnDraw???????????????????????????????????

????????

????????????????????????????????????

?????????????????????????????????

????????OnCy????????????????????????????????

????????????

??????????

????????OnDraw???????????????????????????????????

??

????????????VC++6.0 MFC?????BMP??????????????????????????????????????????????????????????

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