// From msdn.microsoft.com, various ways to enumerate PixelFormats
void CPixForm::OnClickedLastPfd()
{
COpenGL gl;
PIXELFORMATDESCRIPTOR pfd;
//
// Get the hwnd of the view window.
//
HWND hwndview = GetViewHwnd();
//
// Get a DC associated with the view window.
//
HDC dc =::GetDC(hwndview);
int nID = (m_nNextID > 1) ? m_nNextID-- : 1;
//
// Get a description of the pixel format. If it is valid, then go and
// update the controls in the dialog box, otherwise do nothing.
//
if (gl.DescribePixelFormat(dc, nID, sizeof (PIXELFORMATDESCRIPTOR), &pfd))
UpdateDlg(&pfd);
//
// Release the DC.
//
::ReleaseDC(hwndview, dc);
}
void CToneBalanceDlg::OnTimer( UINT nIDEvent )
{
if (!AutoPreview_OnTimer(nIDEvent)) //if timer's no good, return
return;
MakeMap(m_lpData->lpMap );
SetMapGlobals();
MapPreview(GetViewHwnd());
}
