Having trouble with tab control pages’ gray background while using XP themes? Well to solve this problem we need to do some additional housekeeping(AFAIK)…
Add a message map entry for WM_CTLCOLOR…
[sourcecode language=’cpp’]BEGIN_MESSAGE_MAP(CTabPage, CDialog)
ON_WM_CTLCOLOR()
END_MESSAGE_MAP()[/sourcecode]
Override OnCtlColor and add following code…
[sourcecode language=’cpp’]HBRUSH CTabPage::OnCtlColor( CDC* pDC_i, CWnd* pWnd_i, UINT uCntrlType_i )
{
// First do default always
HBRUSH hBrTemp = CDialog::OnCtlColor( pDC_i, pWnd_i, uCntrlType_i );
// If we have a static control or a dialog control we should return our brush
// with the DC having a transparent background
switch( uCntrlType_i )
{
case CTLCOLOR_STATIC:
case CTLCOLOR_DLG:
pDC_i->SetBkMode( TRANSPARENT ); // Transparent mode
hBrTemp = GetSysColorBrush( IsAppThemed() ? COLOR_WINDOW : COLOR_BTNFACE ); // Our brush
}
// Return brush to caller
return hBrTemp;
}[/sourcecode]
Note that we don’t need to delete the created brush since we are using a system cached brush. Also it’s good that you create a custom class(something like CTabPage, make this new class derive from CDialog.) and add this code there and then derive all your tab pages from this class instead of CDialog.
