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transparency with 32 bit color depth

This is a cross post from windows.forms. I'm not sure where to post it.

I have an application that uses transparency. My video settings are
1600x1200 and 32 bit color. I can make the main dialog transparent but
other controls and child windows are not transparent, I see the colored box
around my control. If I switch my color depth to 16 bit everything is fine.
Why does it work on some forms but not others.

I can even make my main form transparent and drop a custom control that has
transparency set. The main form goes transparent but the custom control has
a blue (my transparent color) box around it. Again if I switch color depth
it works fine.

I heard that somewhere in the .NET documentation it says transparency is not
supported under 32 bit color. I have a hard time believing this. Are there
any computers that don't come in 32 bit color mode anymore?

Jim

Nov 16 '05 #1
0 1238

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