doubt in handling OnNcPaint( )

palz's Avatar, Join Date: Jan 2010
Light Poster
i have tied to a rectangle in caption bar of window but this doesn't work .am i doing any mistake.plz correct me .

Code: MFC
void CMainWnd::OnNcPaint( )
{
    CDC dc = (CDC)GetWindowDC();
    RECT rectMine = {30,3,100,20};
    FillRect(dc, &rectMine, (HBRUSH)GetStockObject(DKGRAY_BRUSH));
    SetBkMode(dc, TRANSPARENT);
SetTextColor(dc, RGB(255, 0,0));
   DrawText(dc, "My Dialog", strlen("My Dialog"), &rectMine, 0);
  ReleaseDC(dc);
}
0
Gene Poole's Avatar, Join Date: Nov 2009
Contributor
Your mixing the CDC class with HDC handles and that won't work by forcing casts. Try replacing your first line with:

Code:
  HDC dc = GetWindowDC()->m_hDC;
and your last line with this:
Code:
  ::ReleaseDC(m_hWnd,dc);

Last edited by Gene Poole; 21Jan2010 at 19:44..
0
palz's Avatar, Join Date: Jan 2010
Light Poster
thank u .its working.