C / C++ / MFC

  Travis D. Mathison ---

Travis D. Mathison ---

CMyDialog *pDlg;
pDlg = new CMyDialog();
if ( pDlg != NULL )
    if ( pDlg->Create(IDD_DLG_MY, this) )
        pDlg->ShowWindow(SW_SHOW);

// This is my OnPaint()
CRect  rc;
	GetParent()->GetClientRect(&rc);

	if (rc.Size() == CSize(0,0))
		return;

	CPaintDC dc(this);
	CDC     MemoryDC;
	CBitmap Bitmap;
	CBrush  Brush;

	CRect rcWnd;
	GetWindowRect(&rcWnd);
	int rcWndW = rcWnd.Width(), rcWndH = rcWnd.Height();

	// Paint to a compatible DC
	MemoryDC.CreateCompatibleDC(&dc);
	Bitmap.CreateCompatibleBitmap(&dc, rcWndW, rcWndH);
	CBitmap *pOldBitmap = MemoryDC.SelectObject(&Bitmap);
   
	// Fill background (does what WM_ERASEBKGND would do)
	Brush.CreateSolidBrush(RGB(255,255,255));//GetBkColor());
	MemoryDC.FillRect(&CRect(0,0, rcWndW,rcWndH), &Brush);

	// Hook the header control so that paint gets redirected
	// to the memory dc
	CWMPaintHook  hookHeaderCtrl(GetListCtrl().GetHeaderCtrl()->GetSafeHwnd(), MemoryDC);

	// Do client and children areas first otherwise system
	// scrollbars don't draw correctly.
	Print(&MemoryDC, PRF_CLIENT|PRF_CHILDREN);
	Print(&MemoryDC, PRF_NONCLIENT);

	// Offset the MemoryDC drawing rectangle by rcBounds 
	CRect rcDraw = rc - rc.TopLeft();

	// Dump bits to real device context.
	dc.BitBlt(rc.left,rc.top, rc.Width(),rc.Height(), &MemoryDC, rcDraw.left,rcDraw.top, SRCCOPY);

	MemoryDC.SelectObject(pOldBitmap);