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Offer Har
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Dec 15, 2008 - 7:34 PM
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I am trying to have a thin frame around my CExtLabel in an CExtNCW<CExtResizableDialog> dialog. I tried like this: CExtWRB<CExtLabel>, with no luck. I debugged the code, and I see that WM_NCPAINT is captured in the CExtWRB class, but for some reason this condition happens, so the function exits before it gets to draw anything:
case WM_NCPAINT:
{
CRect rcInBarWnd, rcInBarClient;
GetWindowRect( &rcInBarWnd );
GetClientRect( &rcInBarClient );
ClientToScreen( &rcInBarClient );
if( rcInBarWnd == rcInBarClient )
return 0;Why does this happen? Is this the right way? If not, what is?
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Technical Support
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Dec 18, 2008 - 11:38 AM
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All label windows were created by the dialog template loading code and only later subclassed with the CExtWRB-based classes. So the CExtWRB template had no chance to re-compute non-client area of label windows. Please re-compute non-client area of all your CExtWRB-based labels manually. This can be done in the dialog’s OnInitDialog() virtual method:
CExtLabel & wndLabel = . . .
wndLabel.SetWindowPos( NULL, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER|SWP_NOOWNERZORDER|SWP_FRAMECHANGED );
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Offer Har
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Dec 15, 2008 - 7:38 PM
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Would like to add that WM_NCCALCSIZE of CExtWRB is never called - maybe it can explain the problem...? why isn’t it called?
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Offer Har
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Dec 15, 2008 - 7:51 PM
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More information - if I call AddAnchor on the label and them I resize the dialog, the frame appears... I see that WM_NCCALCSIZE is finally called... This means that there have to be a way to force resizing for the frame to appear, and the control must have an anchor... Is there a way to solve this?
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