Rich Edit and WM_PRINT

[MiMec]

I have a rich edit control and I want to add some kind of a selection bar on the left side of it. I need to paint this bar on my own (gray background, images etc.).

The problem is that the rich edit control doesn't seem to handle the WM_PRINT / WM_PRINTCLIENT messages properly. I tried to override the OnPaint function, render the control to a bitmap in memory and paint the bar:

CMyRichEditCtrl::OnPaint()
{
   CPaintDC dc(this);
	
   CRect rcClient;
   GetClientRect(&rcClient);

   CDC dcMem;
   dcMem.CreateCompatibleDC(&dc);

   CBitmap bmpMem;
   bmpMem.CreateCompatibleBitmap(&dc, rcClient.Width(), rcClient.Height());

   dcMem.SelectObject(&bmpMem);

   SendMessage(WM_PRINT, (WPARAM)dcMem.m_hDC, PRF_CLIENT | PRF_ERASEBKGND);

   rcClient.right = 16;

   dcMem.FillSolidRect(&rcClient, RGB(192,192,192));

   dc.BitBlt(0, 0, rcClient.Width(), rcClient.Height(), &dcMem, 0, 0, SRCCOPY);
}

It doesn't work (I tried with riched v1 and v2). Does anyone have an idea how to do this?

[filthy_mcnasty]

look @ RedrawWindow