send message to a window handle

Hi,

I'm running an exe through which I get a handle of a control in another exe. Now what I want to do is send messages to the particular handle from my exe.

From stackoverflow

• Here is the link which is same as above question but it is sending a message to Chrome window from C# application

• Hello,

  You need to import the function using:

  [DllImport("user32.dll")]
  public static extern int SendMessage(
                    int hWnd,      // handle to destination window
                    uint Msg,       // message
                    long wParam,  // first message parameter
                    long lParam   // second message parameter
                    );
  

  and define the message that you want to send like:

  public const int <WM_YOURMESSAGE> = <yourvalue>;
  

  and then call SendMessage like any other function.