Windows 操作进程 API

Windows 操作进程 API

/// <summary>
/// 查找某个窗口  
/// </summary>
/// <param name="lpClassName"></param>
/// <param name="lpWindowName"></param>
/// <returns></returns>
[DllImport("user32.dll", EntryPoint = "FindWindow")]
public extern static IntPtr FindWindow(string lpClassName, string lpWindowName);
/// <summary>
/// 显示某个窗口
/// </summary>
/// <param name="hwnd"></param>
/// <param name="nCmdShow"></param>
/// <returns></returns>
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);
/// <summary>
/// 进程间传递数据
/// </summary>
/// <param name="hWnd"></param>
/// <param name="msg"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
[DllImport("User32.dll", EntryPoint = "SendMessage")]
public static extern int SendMessage(IntPtr hWnd, int msg, uint wParam, uint lParam);
/// <summary>
/// 进程间传递数据
/// </summary>
/// <param name="hWnd"></param>
/// <param name="msg"></param>
/// <param name="wParam"></param>
/// <param name="lParam"></param>
/// <returns></returns>
[DllImport("User32.dll", EntryPoint = "SendMessage")]
public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, ref ProcessData lParam);
/// <summary>
/// 设置某个窗口置前
/// </summary>
/// <param name="hWnd"></param>
/// <returns></returns>
[DllImport("User32.dll")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

例程

Process[] processes = Process.GetProcessesByName(exe);
if (processes.Length > 0)
{
    IntPtr ihand = Ge.FindWindow(null, "历史数据"); 210520");//HistoryDataView
    if (ihand != IntPtr.Zero)
    {
        Ge.ShowWindow(ihand, 1);//显示
        Ge.SetForegroundWindow(ihand);
    }
}