MFC修改Button背景颜色和字体颜色

最新推荐文章于 2025-07-17 21:20:02 发布

原创最新推荐文章于 2025-07-17 21:20:02 发布 · 3.9k 阅读

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CC 4.0 BY-SA版权

文章标签：

#button #mfc #buffer #path

本文介绍了一种使用OnDrawItem方法自定义MFC对话框中按钮背景颜色和字体颜色的方法。通过CDC绘图对象和RECT结构体操作，可以实现按钮状态（如按下或未按下）时的不同视觉效果。

afx_msg void OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct);

//修改Button背景颜色和字体颜色
void CSkinDlg::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct)
{
    if(nIDCtl==IDC_BUTTON1) //checking for the button
    {
        //Button属性为自画
        CDC dc;
        RECT rect;
        dc.Attach(lpDrawItemStruct ->hDC); // Get the Button DC to CDC
        rect = lpDrawItemStruct->rcItem; //Store the Button rect to our local rect.
        dc.Draw3dRect(&rect,RGB(255,255,255),RGB(0,0,0));
        dc.FillSolidRect(&rect,RGB(100,100,255));//Here you can define the required color to appear on the Button.

        UINT state=lpDrawItemStruct->itemState; //This defines the state of the Push button either pressed or not.

        if((state & ODS_SELECTED))
        {
            dc.DrawEdge(&rect,EDGE_SUNKEN,BF_RECT);
        }
        else
        {
            dc.DrawEdge(&rect,EDGE_RAISED,BF_RECT);
        }

        dc.SetBkColor(RGB(100,100,255)); //Setting the Text Background color
        dc.SetTextColor(RGB(255,0,0)); //Setting the Text Color

        TCHAR buffer[MAX_PATH]; //To store the Caption of the button.
        ZeroMemory(buffer,MAX_PATH ); //Intializing the buffer to zero
        ::GetWindowText(lpDrawItemStruct->hwndItem,buffer,MAX_PATH); //Get the Caption of Button Window
        dc.DrawText(buffer,&rect,DT_CENTER|DT_VCENTER|DT_SINGLELINE);//Redraw the Caption of Button Window
        dc.Detach(); // Detach the Button DC
    }

    CDialog::OnDrawItem(nIDCtl, lpDrawItemStruct);
}