Combines the color data for the source and destination bitmaps using the specified mask and raster operation.
使用指定的掩码和栅格操作混合源位图和目标位图的颜色数据。
If the destination rectangle is smaller than the source rectangle, this function compresses the rows and columns by using the specified raster operation.
如果目标矩形小于源矩形，则此函数使用指定的光栅操作压缩的行和列。
Raster operation codes define how GDI combines colors in output operations that involve a current brush, a possible source bitmap, and a destination bitmap.
光栅操作模式说明了GDI是如何组合输出操作中的颜色，包括当前画刷、可能的源位图和目标位图。
And the integrating raster with vector technology predigests the polygon overlaying operation, realizes inner span part vectorizing and speed up the process.
采用矢量与栅格结合的技术进行更新，简化了矢量多边形叠交运算，实现了图斑内部的局部矢量化，提高了处理速度。
And the integrating raster with vector technology predigests the polygon overlaying operation, realizes inner span part vectorizing and speed up the process.
采用矢量与栅格结合的技术进行更新，简化了矢量多边形叠交运算，实现了图斑内部的局部矢量化，提高了处理速度。
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