How can I send the F4 key to a process in C#? -


I'm starting a process from a Windows application. When I press a button, I want to simulate pressing the key F4 in that process. How can I do this?

[edit later] I do not want to suppress the F4 key in my form, but in this process I started.

To send an F4 key to another process, you must activate that process

Recommend:

  1. Get process class impressions initiated by the process. Start
  2. Query Process Manvindohndale
  3. Unmanaged Win32 API Function "ShowOindo" or "SwitchToWindow"

Then you use System.Windows.Forms.SendKeys.Send ("{F4}")

Edit:

The example code below runs Notepad and for this "ABC" Sends: 

  using the system; Using System.Diagnostics; Using System.Runtime.InteropServices; Using System.Windows.Forms; Namespace textSend {class program {[DllImport ("user32.dll")] Fixed external ball show (intimate hwnd, int ncmd show); Static zero main (string [] args) {process notepad = new process (); Notepad.StartInfo.FileName = @ "C: \ Windows \ notepad.exe"; Notepad.start (); // Notepad should wait for Notepad to start. WaitForInputIdle (); IntPtr p = notepad.MainWindowHandle; ShowWindow (P, 1); SendKeys.SendWait ("ABC"); }}}

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