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Forums » Prof-UIS Tech Support » Maximize CExtControl Collapse All
Subject Author Date
MARK ROBERTS Jul 15, 2004 - 1:46 PM

 


Is it possible to have a maximize/ minimize button in a CExtControlBar window. My current requirement is to allow CExtControlbar to be maximize and fit to the whole parent window, similar to an MDIChild. and if I minimize will restore to last position it was in whether it was floating or docked.


 
Technical Support Jul 16, 2004 - 1:12 PM

Dear Mark,

Please take a look at the CExtControlBar::OnNcAreaButtonsReinitialize virtual method in the ExtControlBar.cpp file:

void CExtControlBar::OnNcAreaButtonsReinitialize()
{
INT nCountOfNcButtons = NcButtons_GetCount();
 if( nCountOfNcButtons > 0 )
  return;
 NcButtons_Add( new CExtBarNcAreaButtonClose(this) );
#if (!defined __EXT_MFC_NO_TAB_CONTROLBARS)
 NcButtons_Add( new CExtBarNcAreaButtonAutoHide(this) );
#endif // (!defined __EXT_MFC_NO_TAB_CONTROLBARS)
// NcButtons_Add( new CExtBarNcAreaButtonExpand(this) );
 NcButtons_Add( new CExtBarNcAreaButtonMenu(this) );
}
The commented line inserts the minimize/maximize button to the resizable bar’s caption. So, create a CExtControlBar-derived class and override this method (you need to uncomment this line).
Saroj Acharya Aug 19, 2004 - 3:55 PM

Does this method really work ? I tried this and I did not get the Min/Max button in my CExtControlBar window. Please see the following code(mine):


void CImageCaptureWndView::OnNcAreaButtonsReinitialize()


{


  CExtControlBar::OnNcAreaButtonsReinitialize();


  NcButtons_Add( new CExtBarNcAreaButtonExpand(this) );


}


 
Technical Support Aug 20, 2004 - 12:50 PM

Dear Saroj,

It seems your source code should look like this:


void CImageCaptureWndView::OnNcAreaButtonsReinitialize()
{
 INT nCountOfNcButtons = NcButtons_GetCount();
 if( nCountOfNcButtons > 0 )
  return;
 NcButtons_Add( new CExtBarNcAreaButtonClose(this) );
#if (!defined __EXT_MFC_NO_TAB_CONTROLBARS)
 NcButtons_Add( new CExtBarNcAreaButtonAutoHide(this) );
#endif // (!defined __EXT_MFC_NO_TAB_CONTROLBARS)
 NcButtons_Add( new CExtBarNcAreaButtonExpand(this) );
 NcButtons_Add( new CExtBarNcAreaButtonMenu(this) );
}