國立暨南國際大學 112 學年度第二學期小考試卷

1. (10%) Consider an MFC application with the following OnDraw() function.  If we expect the program will draw a figure as below, what should be the expression at (1)?
   /* Ellipse */
   void CEX01View::OnDraw(CDC* pDC)
   {
       CEX01Doc* pDoc = GetDocument();
       ASSERT_VALID(pDoc);
       if (!pDoc)
           return;
   
       const int x = 400;
       for (int i = 0; i < 10; ++i)
           pDC->Ellipse(          (1)          );   
   }
   
   
   
   
2. (10%) Consider an MFC application with the following OnDraw() function.  If we expect the program to draw a figure as below, what should be the expressions at (1), (2), and (3)?
   /* CBrush */
   void CEX01View::OnDraw(CDC* pDC)
   {
       CEX01Doc* pDoc = GetDocument();
       ASSERT_VALID(pDoc);
       if (!pDoc)
           return;
   
       const int x = 1000;
       const int y = x / 1.618;
   
       CBrush aBrush(       (1)    );
       pDC->SelectObject(   (2)    );
       pDC->Rectangle(0, 0, x/3, y);
       CBrush bBrush(RGB(255, 0, 0));
       pDC->SelectObject(   (3)    );
       pDC->Rectangle(2 * x / 3, 0, x, y);   
   }