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Comparing Transparent Bitmaps

malpass · 2003-05-01T05:01:47

Read explanation further down... [edited by - Malpass on April 30, 2003 11:00:55 AM]

General and Gameplay Programming Programming

Started by malpass April 30, 2003 05:37 AM

11 comments, last by malpass 20 years, 11 months ago

malpass

122

Author

May 01, 2003 03:27 AM

wat? I obviously do know what i''m talking about, iv already solved it myself now.

Zipster

2,420

May 01, 2003 03:33 AM

Have your mask be a monochrome device context. Put the screen image into a color DC, and use BitBlt with the SRCAND raster op, and it should work. Transparent portions of the destination image should be black I imagine.

I haven''t tested it, but it sounds promising.

malpass

122

Author

May 01, 2003 05:01 AM

ye, thats what I did. But then I need an efficient way to compare the bitmaps. Would I just say

if (myImage1.Equals(myImage2)) // whatever

would that work?