c++如何画实心的箭头
CDC *pDC = GetDC(); CRect rect; GetClientRect(rect); //获得用户区域大小 CPen penBlue(PS_SOLID, 1, RGB(0, 0, 255)); CPen* pOldPen = pDC->SelectObject(&penBlue); //蓝笔红刷 CBrush brushRed(RGB(255, 255, 255)); CBrush* pOldBrush = pDC->SelectObject(&brushRed); CPoint pts[7]; pts[0].x = rect.top; pts[0].y = rect.left + rect.Height()/2; pts[1].x = rect.Width()/2; pts[1].y = rect.top ; pts[2].x = pts[1].x; pts[2].y = rect.Height()/3; pts[3].x = rect.right; pts[3].y = pts[2].y; pts[4].x = pts[3].x ; pts[4].y = rect.Height()*2/3; pts[5].x = rect.Width()/2; pts[5].y = pts[4].y; pts[6].x = pts[5].x; pts[6].y = rect.bottom; pDC->Polygon(pts, 7); // Put back the old objects. pDC->SelectObject(pOldPen); pDC->SelectObject(pOldBrush);
