003
17.07.2008, 12:50 Uhr
Tommix
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void CProbebitmapDlg::OnPaint()
{
CPen Pen_rot;
Pen_rot.CreatePen(PS_SOLID,2,rot);
CPaintDC dc(this); // device context for painting
dcMemory.CreateCompatibleDC(&dc);
CRect rect;
GetClientRect(rect);
CBitmap bitmap;
bitmap.CreateCompatibleBitmap(&dc, rect.Width(), rect.Height()));
CBitmap* pOldBitmap = dcMemory.SelectObject(&bitmap);
CPen* pOldPen = dcMemory.SelectObject(&Pen_rot);
dcMemory.MoveTo(0,0);
dcMemory.LineTo(100,100);
dc.BitBlt(0,0,200,100,&dcMemory,0,0,SRCAND); //SRCCOPY SRCCOPY);
dcMemory.SelectObject(pOldPen);
// MSDN:
// "An application should not call DeleteObject on a CGdiObject
// object that is currently selected into a device context. "
dcMemory.SelectObject(pOldBitmap);
dcMemory.DeleteDC();
Pen_rot.DeleteObject();
}
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