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摘要： 收藏！Rev 1.2IntroductionChanging the default appearance of elements of the Windows GUI has been a never ending challenge for Windows programmers since the first release of the Windows API. And anyone who has seriously tried to change the appearance of menus (beyond simple owner-draw techniques) will k 阅读全文

摘要： SelectClipRgn(NULL)或SelectClipRgn(NULL, RGN_COPY)表示当前选中全部区域,cwindowdc就是window区域，cclientdc就是client区域每次绘制前都可以用SelectClipRgn来选中一块区域，再绘制，再选中一块区域，再绘制，不第二次用SelectClipRgn选中，上次绘制的不会被擦除，当然可以结合ExcludeClipRect来绘制。注意使用gdi+时，一定要先用SelectClipRgn选定区域，再生成graphics g(hdc)，不然g 就默认用上次的区域绘制了！！ 阅读全文