Kev- Thanks, I got your compiled exe and ran it on both XP and 2000 but still got the same problem as before. Yes, confirmed I'm running BlitzPlus V1.45 here (even downloaded it again to be sure- I guess we can't trust our Help-About dialog, as it still says 1.44 for each of the three IDE/linker/runtime). But please let me know if you got this working (without corrupted desktop) on XP. btw I tested this before but just to mention it, I don't think the code requires an actual test.bmp bitmap before running it, somehow, despite the fact that's what the function argument is (I don't quite understand why but with or without a test.bmp file, it doesn't seem to matter). I left it that way because in Hip Teen's original code, he did this with a panel and might have setpanelbackgrounded inside the function.
SebHoll- Thanks for mentioning that, but is that a definitive answer that what I am trying to do is impossible on windows 2000 and XP? Please tell me it ain't so! Even if the canvas won't be transparent, I can still work with that, as long as it doesn't crap all over my desktop and cause it to not even refresh itself. If not can you imagine any feasible workarounds to this? I searched Desktop Composition and saw your post here (what degac describes sounds exactly like my problem in that thread though I can't see his images).
SebHoll- Thanks for mentioning that, but is that a definitive answer that what I am trying to do is impossible on windows 2000 and XP? Please tell me it ain't so! Even if the canvas won't be transparent, I can still work with that, as long as it doesn't crap all over my desktop and cause it to not even refresh itself. If not can you imagine any feasible workarounds to this? I searched Desktop Composition and saw your post here (what degac describes sounds exactly like my problem in that thread though I can't see his images).