Re: GDI+ to draw on canvas with alpha channel

Hi Arno,

Thanks for your feedback!

No, please feel free to feedback any concern, I am glad to be of any
assistant.

You can draw on a memory bitmap, using 32bpp PARGB format for example, and
have the alpha accumulate in the bitmap. Pseudocode might look like this:

Bitmap b( x, y, 32bppPARGB )
{ Graphics g( b )
g.Clear( Color(0,0,0,0) )
DrawStuffWithAlpha(g) }
// Note that b now contains alpha drawing

If you have a counter-example or further questions, please feel free to
post, I will work with you. Thanks.

Best regards,
Jeffrey Tan
Microsoft Online Community Support
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