C# 操控滚动条

使用 Windows 系统 API 函数实现

功能代码

#region 获取或设置滚动条位置/// <summary>/// 获取指定滚动条中滚动按钮的当前位置/// </summary>/// <param name="hWnd">带有标准滚动条控件的句柄</param>/// <param name="nBar">0：水平滚动条，1：垂直滚动条</param>/// <returns></returns>[DllImport("user32.dll", EntryPoint = "GetScrollPos")]private static extern int GetScrollPos(IntPtr hWnd, int nBar);/// <summary>/// 设置滚动条位置/// </summary>/// <param name="hWnd">带有标准滚动条控件的句柄</param>/// <param name="nBar">0：水平滚动条，1：垂直滚动条</param>/// <param name="nPos">位置</param>/// <param name="bRedraw">重绘标志，是否重绘</param>/// <returns></returns>[DllImport("user32.dll")]private static extern int SetScrollPos(IntPtr hWnd, int nBar, int nPos, bool bRedraw);/// <summary>/// 设置控件内容位置/// </summary>/// <param name="hWnd">控件句柄</param>/// <param name="msg">消息（0x00B6）</param>/// <param name="wParam">0</param>/// <param name="iParam">位置</param>/// <returns></returns>[DllImport("user32.dll", EntryPoint = "SendMessage")]private static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int iParam);#endregion