Question

我有一个使用c++编写的exe程序，
当exe为opened, closed or minimized时，我想执行一些操作我想知道使用c#.net？

是否可以实现这种功能

Answer 1

你可以发送Windows消息。您还可以使用管道名称

控制窗口

A simple message pump looks like this:
[Serializable, StructLayout(LayoutKind.Sequential)]
public struct MSG
{
    public IntPtr hwnd;
    public int message;
    public IntPtr wParam;
    public IntPtr lParam;
    public int time;
    public int pt_x;
    public int pt_y;
}

[DllImport("user32.dll", CharSet = CharSet.Ansi)]
public static extern bool GetMessage([In, Out] ref MSG msg, IntPtr hWnd, int MsgFilterMin,  int uMsgFilterMax);

[DllImport("user32.dll", CharSet = CharSet.Auto)]
public static extern IntPtr DispatchMessage([In] ref MSG msg);


[DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint RegisterWindowMessage(string lpString);

[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr SendMessage(IntPtr hWnd, uint Msg, IntPtr wParam, IntPtr lParam);


    // #1
    MSG msg = new MSG();
    while (GetMessage(ref msg, IntPtr.Zero, 0, 0))
    {
        DispatchMessage(ref msg);
    }

    // #2
    uint UWM_UART_CTRL_TRS = Win32Api.RegisterWindowMessage("BT_UARTCTRL_TRANSFER");
    Win32Api.SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, (IntPtr)0, (IntPtr)0);

    // #3
    uint UWM_UART_CTRL_TRS = Win32Api.RegisterWindowMessage("BT_UARTCTRL_TRANSFER");
    Win32Api.SendMessage(HWND_BROADCAST, UWM_UART_CTRL_TRS, (IntPtr)1, (IntPtr)0);

Answer 2

Native .NET Process类具有event fired when a process is closed的功能。

此外，还部分讨论了C＃中的流程监控in this post。

考虑到这一点，您必须使用Windows Management Instrumentation来跟踪各种特定流程事件。

使用.net监控非托管程序

2 个答案: