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TraxMate

I want to put a transparent bitmap on a button. So far I have been able to put a transparent bitmap on the main window using BitBlt but if I do that on the button I need to repaint it every time it updates.. I also thought of sending a BM_SETIMAGE message to the button but I don't know how to get a HBITMAP of the transparent bitmap.

Here's my code that shows a transparent bitmap in the main window:

hcavolsdsadgadsg · Posted: Tue Jan 25, 2011 10:09 pm Post subject:

hmm.

try creating a bitmap with CreateCompatableBitmap(), then SelectObject() said bitmap into your memory dc (created with CreateCompatableDC()) and then blit into your memory DC or something something fuck

atom0s · Posted: Wed Jan 26, 2011 5:00 pm Post subject:

If you care to dig into layered windows you can do transparency fairly easy at the cost of some more in depth code and lack of support from Microsoft.

Here's a project I made using UpdateLayeredWindow:
http://67.210.99.128/patchlib/Release/patchLibv3.1.7z

Which results in things like:

If you plan to stick to using Bitblt and so on, check out owner drawn controls:
http://www.codeproject.com/KB/buttons/nativewin32xpthemes.aspx

TraxMate · Posted: Thu Jan 27, 2011 1:54 pm Post subject:

Thanks for the help, owner drawn did exactly what I wanted. (Y)