I'm trying to use SendMessage to Notepad, so that I can insert written text without making Notepad the active window.
I have done something like this in the past using SendText
, but that required giving Notepad focus.
Now, first I'm retrieving the Windows handle:
Process[] processes = Process.GetProcessesByName("notepad");
Console.WriteLine(processes[0].MainWindowHandle.ToString());
I've confirmed it's the right handle for Notepad, the same shown within Windows Task Manager
.
[DllImport("User32.dll", EntryPoint = "SendMessage")]
public static extern int SendMessage(int hWnd, int Msg, int wParam, int lParam);
From here, I haven't been able to get SendMessage to work in all my experimentation. Am I going in the wrong direction?
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