returning a hollow brush from onctlcolor

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I have an MDI project, using CFormView. I display a bitmap in the form, put CStatic controls on top. I override OnCtlColor to use a hollow brush for the controls so that the bitmap shows through the controls' rectangle and the text is shown on top of the bitmap. For reasons too long to detail here, I moved the controls to a CWnd derived class (the famous CMDIClientWnd subclassed in CMainFrame). However, now the backgrounds of the CStatic controls are not the bitmap but whatever happened to be on the monitor under the application. Anyone know why, and how I can make the bitmap be the background of the controls again? Thanks.

Posted 7-Jul-10 11:05am

genush

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Rajasekharan Vengalil · Answer 1 · 2010-07-12T11:40:00

I've never done this but one thing worth investigating might be to see if SetLayeredWindowAttributes can do the job for you. You'd first need to call SetWindowLong on your controls to turn the WS_EX_LAYERED flag on though. This should make the window transparent so that stuff underneath it shows through.

genush · Answer 2 · 2010-07-12T12:04:00

Solution 2

I added those 2 calls, unfortunately it didn't help. But thanks for the ideas.

Posted 12-Jul-10 12:04pm