Hi all:
I want to blit an surface which contain some pixel(its alphavalue = 0)
,but on the destination surface those pixel appear to be black.Any way to
make those pixel to be transparent on destination surface? Fore Example:
1. I create an 200*200 , pixelformat=argb source surface,then I set
foreground color to red,and draw an triangle at (0,0),(200,100),(0,200) on
this surface.
2. set destination surface blittingflag DSBLIT_BLEND_ALPHACHANNEL
3. blit source surface to destination surface
As a result,an black rectangle with an red trangle in it on destination
surface .How do I get rid of those boring black pixel?
Thanks in advance!
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