COLORREF crSrc = ....;
COLORREF crDst = 0x00ffffff-crSrc;
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2 楼xxhfortrue（红叶）回复于 2004-07-28 11:25:21 得分 5
同意楼上Top
3 楼ShaftWhy（归去来兮）回复于 2004-07-28 11:29:00 得分 5
AgreeAgreeTop
4 楼holyeagle（一杯清茶）回复于 2004-07-28 11:30:51 得分 10
自己转
COLORREF RGB = dc.GetPexel() | 0x00FFFFFF; //避免高位出错。
COLORREF RGBRev = 0x00ffffff - RGB;Top
5 楼jennifergiant（希罗·尤尔）回复于 2004-07-28 11:36:40 得分 5
同上 精辟Top
6 楼happyparrot（快乐鹦鹉）回复于 2004-07-28 11:38:34 得分 20
补充一下，如果你只有各个分色的值，比如R,G,B，那么反色等于：
COLORREF ref = RGB(255-R,255-G,255-B);
或者ref = 0x00ffffff - RGB(R,G,B);Top
7 楼FengYuanMSFT（(6.4 被封杀)袁峰 http://fengyuancom.spaces.live.com）回复于 2004-07-28 11:48:11 得分 5
First you have to define what is a reverse color. Reverse is always relative to an operation and a constant.
What you guys are using is finding c' for c such that c + c' = white, so '+' is the operation.
But reverse could also be defined by finding c' for c such that c XOR c' = white, so 'XOR' is the operation here.