https://bugs.documentfoundation.org/show_bug.cgi?id=91017
--- Comment #10 from Armin Le Grand <[email protected]> --- Found that indeed for EMR_ALPHABLEND the MS docu at https://msdn.microsoft.com/en-us/library/cc230613.aspx defines alpha possibilities for the to-be-loaded bitmap which the implementation of EMR_ALPHABLEND does not support. It creates a temp file to be able to use ReadDIB which itself is not capable of reading alpha. This means that the whole old patch is not complete and only works when BLENDFUNCTION AlphaFormat is 0x00 and SrcConstantAlpha is 0xff (which means to copy the bitmap). I checked with the bugdoc and it contains alpha data which is not read. Adding stuff to read it is not easy (best chance is to create a temp file to use ReadDIBV5 I would guess). -- You are receiving this mail because: You are the assignee for the bug.
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