AlphaBlend function in cross platform LCL
lazarus / 39-Graphics

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dmitryb · 2018-10-01 23:45

Hi All

What is the analog of Win32 function AlphaBlend in cross platform LCL?
I need to draw TBitmap on Canvas with specified level of transparency.

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Handoko · 2018-10-02 03:09

I don't think there is a single command to draw bitmap with specified
level of transparency. Perhaps you can try BGRABitmap package.

This how to make a transparent form with BGRABitmap discussion maybe
can help you:
https://forum.lazarus.freepascal.org/index.php/topic,34038.msg222021.h
tml

And this is a list BGRABitmap's tutorials:
http://wiki.freepascal.org/BGRABitmap_tutorial