求API的光栅运算函数
求API的光栅运算函数 谢谢了````
[解决办法]
帮顶
[解决办法]
是不是找的SetROP2？这个用来设置二元光栅操作方式的，共16种，MSDN中的说明：
Mix mode Description
R2_BLACK Pixel is always 0.
R2_COPYPEN Pixel is the pen color.
R2_MASKNOTPEN Pixel is a combination of the colors common to both the screen and the inverse of the pen.
R2_MASKPEN Pixel is a combination of the colors common to both the pen and the screen.
R2_MASKPENNOT Pixel is a combination of the colors common to both the pen and the inverse of the screen.
R2_MERGENOTPEN Pixel is a combination of the screen color and the inverse of the pen color.
R2_MERGEPEN Pixel is a combination of the pen color and the screen color.
R2_MERGEPENNOT Pixel is a combination of the pen color and the inverse of the screen color.
R2_NOP Pixel remains unchanged.
R2_NOT Pixel is the inverse of the screen color.
R2_NOTCOPYPEN Pixel is the inverse of the pen color.
R2_NOTMASKPEN Pixel is the inverse of the R2_MASKPEN color.
R2_NOTMERGEPEN Pixel is the inverse of the R2_MERGEPEN color.
R2_NOTXORPEN Pixel is the inverse of the R2_XORPEN color.
R2_WHITE Pixel is always 1.
R2_XORPEN Pixel is a combination of the colors in the pen and in the screen, but not in both.
此外还有三元的，但是不常用。
[解决办法]
光栅运算函数：BitBlt,StretchBlt等API
参见Visual Basic 6.0 Win32 API程序设 第9章 9.5 光栅运算：
http://www.huachu.com.cn/itbook/itbookinfo.asp?lbbh=BB03123900
里面351-352页有这样的话：光栅运算（Raster OPeration，即ROP）简称ROP。也称光栅操作、二进制光栅操作或ROP2模式，一般通过BitBlt函数来实现。SRCCOPY=&HCC0020，称为光栅操作码，或ROP码。ROP码共有15种：SRCCOPY,SRCPAINT,SRCAND等。
