绘制饼图DrawPie

代码：

void Cgditest1Dlg::OnPaint()
{
    if (IsIconic())
    {
        CPaintDC dc(this); // 用于绘制的设备上下文

        SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

        // 使图标在工作矩形中居中
        int cxIcon = GetSystemMetrics(SM_CXICON);
        int cyIcon = GetSystemMetrics(SM_CYICON);
        CRect rect;
        GetClientRect(&rect);
        int x = (rect.Width() - cxIcon + 1) / 2;
        int y = (rect.Height() - cyIcon + 1) / 2;

        // 绘制图标
        dc.DrawIcon(x, y, m_hIcon);
    }
    else
    {
        //UpdateData(TRUE);
        CPaintDC dc(this);
        Graphics g(dc);
        Pen mypen(Color::Red,2);
        //g.DrawArc(&mypen,10,10,200,100,GetDlgItemInt(IDC_EDIT1),GetDlgItemInt(IDC_EDIT2));
        g.DrawPie(&mypen,10,10,200,100,GetDlgItemInt(IDC_EDIT1),GetDlgItemInt(IDC_EDIT2));
        //g.DrawArc(&mypen,10,10,200,100,45,270);
        CDialog::OnPaint();
    }
}

 

只修改了方法，其它和上例一样