Re: unable to display check/radio box with transparent background
"Ian" <Ian@discussions.microsoft.com> wrote in message
news:5B4C43F0-79F9-4ADD-8640-1C4076DD58A1@microsoft.com...
I am not able to get check boxes/radio buttons to be displayed with a
transparent background in my dialogs. The general technique for
displaying
controls with transparent backgrounds is described in more than a few
postings (e.g.
http://groups.google.ca/group/microsoft.public.pocketpc.developer/browse_thread/thread/e5d77d8f30350f3a/22ea8e331b6cd993?lnk=st&q=dialog+bitmap+static+text+background+transparent#22ea8e331b6cd993 )
.
The general technique in MFC is as follows:
HBRUSH CInsDialog:nCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
pDC->SetBkMode(TRANSPARENT);
return _brHollow; // this brush is defined elsewhere
}
This works well for most controls but not for checkboxes, radio buttons
and
tab controls - these controls alway have the standard windows 'grey'
background'. The last set of postings on this topic appear in 2002/2003
and I've not found anything since. Does anyone have a solution for this
'hiccup'? I am working with VS2005 running on Vista home premium.
You'll need to draw the controls yourself (owner drawn). You can get the
text to honor the WM_CTLCOLORxxx message but not if you're using common
controls v6. Even then, the background rect gets painted over.
Mark
--
Mark Salsbery
Microsoft MVP - Visual C++
Thanks,
Ian
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