Clpping Region is Not Operate with Printpreview
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Drawing Bitmap on view(DC) with Clipping Region Operate well. But, Drawing On PrintPreview(DC) Don't operate. Please See My Code. CBitmap Bitmap, *pOldBitmap; Bitmap.LoadBitmap(IDB_BITMAP1); CDC MemDC; MemDC.CreateCompatibleDC( pDC ); pOldBitmap = MemDC.SelectObject( &Bitmap ); pDC->SetMapMode( MM_TEXT); CPoint pt[3]; pt[0] = CPoint( 0, 0 ); pt[1] = CPoint( 0, 480); pt[2] = CPoint( 640, 480); CRgn ClipRgn; CRgn rgnRect; rgnRect.CreateRectRgn( 0, 0, 640, 480 ); pDC->BeginPath(); pDC->Polygon( pt, 3); pDC->EndPath(); pDC->StrokePath(); ClipRgn.CreatePolygonRgn(pt, 3, ALTERNATE); ClipRgn.CombineRgn( &ClipRgn, &rgnRect, RGN_AND ); if( pDC->IsPrinting() ) { pDC->SelectClipRgn( &ClipRgn ); pDC->StretchBlt( 0, 0, 1000, 1000, &MemDC,0,0,640,480, SRCCOPY ); } else{ pDC->StretchBlt( 0, 0, 1000, 1000, &MemDC, 0, 0, 640,480, SRCCOPY ); } MemDC.SelectObject(pOldBitmap); MemDC.DeleteDC(); Bitmap.DeleteObject(); I want know How to use SelectClipRgn() function with printpreview state thanks