C / C++ / MFC

void CMyClass::OnLButtonDown(UINT nFlags, CPoint point) <br />
<br />
	CPoint ptCursor = point;<br />
	<br />
	CRect r = this->GetRect();<br />
	<br />
	CImageList DragImage;<br />
	CBitmap CurrentDragImage;	<br />
		<br />
	// Create a DC for the my class<br />
	CDC dc;	<br />
	HDC hdc = ::GetDC(this->hWnd);<br />
	dc.Attach(hdc);<br />
<br />
	// Create a memory DC<br />
	CDC memDC;<br />
	memDC.CreateCompatibleDC(&dc);<br />
<br />
	CSize sz(r.Width(), r.Height());<br />
	CurrentDragImage.CreateCompatibleBitmap(&dc, sz.cx, sz.cy);<br />
	CBitmap * oldbm = memDC.SelectObject(&CurrentDragImage);<br />
<br />
	// Copy the graphics we want to drag to the bitmap<br />
	memDC.BitBlt(0, 0, sz.cx, sz.cy, &dc, r.TopLeft().x, r.TopLeft().y, SRCCOPY);<br />
		<br />
	// ***TEST CODE: This DOES work - it copies the image I want from the screen to the clipboard and can be pasted in pbrush<br />
	this->GetParent()->OpenClipboard();<br />
	::EmptyClipboard();<br />
	::SetClipboardData(CF_BITMAP, (HBITMAP)CurrentDragImage);<br />
	CloseClipboard();<br />
	// ***END TEST CODE		<br />
		<br />
	DragImage.Create(sz.cx, sz.cy, ILC_COLOR32, 0,1);<br />
		<br />
	DragImage.Add(&CurrentDragImage, RGB(0,0,0));<br />
<br />
	DragImage.BeginDrag(0, point);<br />
<br />
	DragImage.DragEnter(this->GetParent(), point);<br />
		<br />
<br />
	for (int i=20; i<200; i++)<br />
	{<br />
		CPoint g;<br />
		g.x = i;<br />
		g.y = i;<br />
		DragImage.DragMove(g);<br />
		<br />
		// Just to slow it down enough to see it	<br />
		for (int h=0; h<20000; h++);<br />
	}<br />
<br />
<br />
}