Hi, all.

I have two bitmaps (BMP) - Picture and Alfa chanel for this picture.
How can I display this bitmap transparent into CDC with BitBlt.
Alfa chanel is mask with 256 grayscale colors.
I must draw this bitmap with ALFA - No black/white mask. This bitmap picture have antialiasing and when I display this bitmap into some picture without ALFA (I use only mask), the corners of this picture is no good shown - have antialiasing.
How can I do this ?

Thanks.