如何将DC加载的位图镜像？

[Cacar]

BitBlt好像不行，有其它办法么（不要自己写图像镜像...）？请教...

[ddszhan]

StretchBlt creates a mirror image of a bitmap if the signs of the nWidthSrc and nWidthDest parameters or of the nHeightSrc and nHeightDest parameters differ. If nWidthSrc and nWidthDest have different signs, the function creates a mirror image of the bitmap along the x-axis. If nHeightSrc and nHeightDest have different signs, the function creates a mirror image of the bitmap along the y-axis.