MDI程序中
CMainFrame* pMainFrame = (CMainFrame*)GetMainWnd();
CBitmapZoomView* pActiveView = (CBitmapZoomView*)pMainFrame->MDIGetActive();
MDI程序中
CMainFrame* pMainFrame = (CMainFrame*)GetMainWnd();
CBitmapZoomView* pActiveView = (CBitmapZoomView*)pMainFrame->MDIGetActive();