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CWnd::IsIconic

Specifies whether CWnd is minimized (iconic).

BOOL IsIconic( ) const;

Nonzero if CWnd is minimized; otherwise 0.


void CAboutDlg::OnPaint()
{
   // This code, normally emitted by the Application Wizard for a dialog-
   // based project for the dialog's WM_PAINT handler, runs only if the 
   // window is iconic. The window erases the icon's area, then
   // paints the icon referenced by m_hIcon.
   if (IsIconic())
   {
      CPaintDC dc(this); // device context for painting

      SendMessage(WM_ICONERASEBKGND, (WPARAM)dc.GetSafeHdc(), 0);

      // Center icon in client rectangle
      int cxIcon = GetSystemMetrics(SM_CXICON);
      int cyIcon = GetSystemMetrics(SM_CYICON);
      CRect rect;
      GetClientRect(&rect);
      int x = (rect.Width() - cxIcon + 1) / 2;
      int y = (rect.Height() - cyIcon + 1) / 2;

      // Draw the icon
      dc.DrawIcon(x, y, m_hIcon);
   }
   else
   {
      CDialog::OnPaint();   
   }
}


Header: afxwin.h

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