Minimize window mode code

Hello all i wanna window mode work bot and just 1 window mode used how i make this possible ? anyknow code
#include <nomadmemory.au3>
$PID = WinGetProcess(knight Online )
winactive (knight Online)
While 1
Send ("{TAB}")
Sleep(500)
send ("{1}")
Sleep(2000)
Send ("{1}")
Sleep(2000)
Send ("{1}")
Sleep (1000)

im open facebook i cant chat there because 111111111111111111111111111 i wanna used facebook and window mode bot...

Send is used to send they keystrokes to the active window.
If you have facebook open, it's going to send it to facebook.

You can either try it via ControlSend or with _SendMessage / PostMessage.