'File memdc' presentation slideshows

GDI ????

GDI ????. CMemDC. Memdc.h. Application to use CMemDC: 1. Add the file memdc.h in your project. 2. Add the line #include " memdc.h " to stdafx.h. 3. Add a windows message handler for WM_ERASEBKGND . BOOL CExampleView::OnEraseBkgnd(CDC* pDC) { //return CView::OnEraseBkgnd(pDC);

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