问题
I don't want to use GDI+'s DrawImage because of speed issues. What other ways are there to draw an image resized with decent quality - at least linear or cubic interpolation?
回答1:
You can use SetStretchBltMode with the HALFTONE
setting, but you'll probably run into the same speed issues that you faced with GDI+ -- smoothing always comes at a cost.
来源:https://stackoverflow.com/questions/4572886/what-would-be-a-higher-quality-alternative-to-stretchblt-for-drawing-an-hbitmap