change the background of richedit control

[abdul]

Is there anyway to change the background of richedit control to a bitmap or a picture? I can't seem to find any message for changing the background to a picture but will it just change the background if I use its DC and draw the Bitmap onto it (like drawing the bitmap on window)

[Megatron]

No, there isn't any built in method. I would just go with drawing the bitmap onto the window, or inserting an OLE object of the picture.

[abdul]

But somehow this code is not working:

	   hdc = BeginPaint(rtfhwnd, &ps);
	   memhdc = CreateCompatibleDC(hdc);
	   SelectObject(memhdc, hbitmap);
	   GetObject(hbitmap, sizeof(bm), &bm);
	   BitBlt(hdc, 0,0, bm.bmWidth, bm.bmHeight, memhdc, 0,0,SRCCOPY);
	   DeleteDC(memhdc);
	   EndPaint(rtfhwnd, &ps);

NOTE: It works for the main window when I put it under the windows' WM_PAINT Message.

So I think that I need to put it under the WM_PAINT Message of richedit control. And I think that I need to Subclass the richedit control in order to receive the WM_PAINT message..right? If yes, then can you please show me how to subclass the richedit control and will it send me WM_PAINT, and will I be able to paint the background using the above code if I subclass it?

Please

[Megatron]

Add these 2 as global variables:

LRESULT CALLBACK RichEditProc(HWND, UINT, WPARAM, LPARAM); 
WNDPROC wOldProc;

Add this to the WM_CREATE event.

wOldProc = (WNDPROC)SetWindowLong(hEdit, GWL_WNDPROC, (LONG) &RichEditProc);

Add this to the WM_CLOSE event.

SetWindowLong(hEdit, GWL_WNDPROC, (LONG)&wOldProc);

This will be your callback for the richedit control.

LRESULT CALLBACK RichEditProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
	switch(uMsg) 
	{
		case WM_PAINT:
	                       // Add code here;
                  
		default:
			return CallWindowProc(wOldProc, hWnd, uMsg, wParam, lParam);
	}
}

[abdul]

It tried that but it does not paint anything on the richedit box

It also gives me an access voilation error message when I try to set its procedure to default at the WM_CLOSE message