Marc Weustink rašė: > A faster way, (which might work in most cases) is when you have a 24bit > depth description with a 32bits per pixel image.
How retrieve image description from TBitmap? > Then you can simply add > an alpha description (precision=8, shift=24 or 0) to the rawimage. How i can do that? > Another thing, I'm not sure if loading form IntfImage/RawImage sets the > right pixelformat (and thus image description). > Anyway, maybe the bmp is OK. How do you paint it ? I use Canvas.Draw method. I found another solution to not use a proxy image, but load resource from stream directly to LazIntfImage (created with Init_BPP32_B8G8R8A8_BIO_TTB description). Now i always got alpha channel and code is flexible to various image types (need just change image reader type). I thing il stay with this solution. Thanks for help -- Valdas Jankūnas _______________________________________________ Lazarus mailing list Lazarus@lazarus.freepascal.org http://www.lazarus.freepascal.org/mailman/listinfo/lazarus