mfc绘制框选边框

CPen penBlack(PS_SOLID, 1, CLR_BK), penWhite(PS_DOT, 1, RGB(255, 255, 255)), *pOldPen; CBrush brush, *pOldBrh; brush.CreateStockObject(NULL_BRUSH); pOldBrh = (CBrush*)pDC->SelectObject(&brush); pOld

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