C语言WFC绘制矩形
代码实现：
void CCGDrawingView::Rectangle(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4, COLORREF color,
CDC* pDC) {
CPen redPen(PS_SOLID, 1, color);
CBrush redBursh(color);
CPen* pOldPen = pDC->SelectObject(&redPen);
CBrush* pOLdBrush = pDC->SelectObject(&redBursh);
pDC->MoveTo(x1, y1);
pDC->LineTo(x2, y2);
pDC->LineTo(x3, y3);
pDC->LineTo(x4, y4);
pDC->LineTo(x1, y1);
}结果展示：
