c# - 如何获取另一个进程MessageBox的消息？

Question

另一个应用程序有时会显示标题为“Test”的 MessageBox 和 MessageBox 主体内部的一些消息，我如何从另一个应用程序(用 C++ 或 C# 编写)获取此消息然后关闭它？ C# 代码:

[DllImport("user32.dll", SetLastError = true)]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")]
public static extern int SendMessage(int hWnd,uint Msg,int wParam,int lParam);
public const int WM_SYSCOMMAND = 0x0112;
public const int SC_CLOSE = 0xF060;

for (int i = 0; i < 40; i++) // just test cycle
{
     IntPtr window = FindWindow(null, "Test");
     if (window != IntPtr.Zero) // ok we found it!
     {
          // code that reads MessageBox message?
          .....
          // work is done, closing
          SendMessage((int)window, WM_SYSCOMMAND, SC_CLOSE, 0);
          break;
     }
     System.Threading.Thread.Sleep(50);
}

你能帮我解决这个问题吗？我该怎么做？

Answer 1

查看 this thread .

选择 1:

You can use an API like Spy++ to access other windows controls.

选择 2:

you should use Windows APIs like EnumWindow or FindWindow then use EnumChildWindows API to find the controls in the target window, like the textbox you are looking for, then the API SetWindowText

have a look here for some ideas: Why is EnumChildWindows skipping children? also search for these APIs names here in Stack Overflow and you will find many examples...

选择 3:

I found this api which may allow you to complete your task : http://www.programmersheaven.com/download/56171/download.aspx