mfc下对bmp图片顺时针90度旋转，灰度，分块的操作

[{"title":"（ 5 个子文件 4.87MB ） mfc下对bmp图片顺时针90度旋转，灰度，分块的操作","children":[{"title":"完整程序因为大于60M，所以放到了网盘上.txt <span style='color:#111;'> 155B </span>","children":null,"spread":false},{"title":"bmpView.h <span style='color:#111;'> 2.45KB </span>","children":null,"spread":false},{"title":"bmpView.cpp <span style='color:#111;'> 14.69KB </span>","children":null,"spread":false},{"title":"ReadMe.txt <span style='color:#111;'> 292B </span>","children":null,"spread":false},{"title":"readme.docx <span style='color:#111;'> 4.88MB </span>","children":null,"spread":false}],"spread":true}]