PostMessage UDF

/w xyz hallo

_PostMessage_Send($_handle, "{DOWN}")

#include <WindowsConstants.au3>

Opt("WinTitleMatchMode", 3)

Global $client = "Neues Textdokument - Editor"
Global $hwnd = WinGetHandle($client)

KeySend("SLASH")
KeySend("w")
KeySend("SPACE")
KeySend("x")
KeySend("y")
KeySend("z")
KeySend("SPACE")
KeySend("H")
KeySend("a")
KeySend("l")
KeySend("l")
KeySend("o")


; send single keyboard event to non active window
; event = pressed, down, up
; kdown = key down delay
; note: supports only lower case keys + NUMx, Fx, some special keys and @
Func KeySend($inkey, $evt ="pressed", $kdown = 50)
	$user32 = DllOpen("user32.dll")
	if $user32 = -1 Then
		ConsoleWrite("KeySend: cannot open user32.dll")
		Exit
	EndIf
		
    ; handling for special keys
	Switch StringUpper($inkey)
	Case "@"
		$skey = 0x40
		$lparam = 0x00100001
		DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYDOWN, "int", 0x71, "long", $lparam)
		DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_CHAR, "int", $skey, "long", $lparam)
		Sleep(20)
		DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYUP, "int", 0x71, "long", BitOR($lparam, 0xC0000000))		
	Case "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11", "F12"
		$skey = 0x6f + Int(StringMid($inkey, 2)) 
		ContinueCase
	Case "NUM0", "NUM1", "NUM2", "NUM3", "NUM4", "NUM5", "NUM6", "NUM7", "NUM8" , "NUM9"
		if StringUpper(StringLeft($inkey, 3)) = "NUM" Then
			$skey = 0x60 + Int(StringMid($inkey, 4)) 
		EndIf
		ContinueCase
	Case "RETURN", "SPACE", "TAB", "BACK", "END", "HOME", "SNAPSHOT", "INSERT", "DELETE","SLASH", "LEFT", "RIGHT", "UP", "DOWN"
		Switch StringUpper($inkey)
		Case "RETURN"
			$skey = 0x0D
		Case "SPACE"
			$skey = 0x20
		Case "TAB"
			$skey = 0x09
		Case "BACK"
			$skey = 0x08
		Case "END"
			$skey = 0x23
		Case "HOME"
			$skey = 0x24
		Case "SNAPSHOT"
			$skey = 0x2c
		Case "INSERT"
			$skey = 0x2d
		Case "DELETE"
			$skey = 0x2e
		Case "SLASH"
			$skey = 0x2f	
		Case "LEFT"
			$skey = 0x25
		Case "RIGHT"
			$skey = 0x27
		Case "UP"
			$skey = 0x26
		Case "DOWN"
			$skey = 0x28
		EndSwitch
		$ret = DllCall($user32, "int", "MapVirtualKey", "int", $skey, "int", 0)
		$lparam = BitShift($ret[0], -16)
		$lparam = BitOr($lparam, 1)
		DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYDOWN, "int", $skey, "long", $lparam)
		Sleep($kdown)
		DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYUP, "int", $skey, "long",   BitOR($lparam, 0xC0000000))
	Case Else ; default lower case key handling
		$key = DllCall($user32, "int", "VkKeyScan", "int", Asc(StringLower($inkey)))
		$skey = $key[0]		
		$ret = DllCall($user32, "int", "MapVirtualKey", "int", $skey, "int", 0)
		$lparam = BitShift($ret[0], -16)
		$lparam = BitOr($lparam, 1)
		Select
		Case $evt = "pressed"
			DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYDOWN, "int", $skey, "long", $lparam)
			Sleep($kdown)
			DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYUP, "int", $skey, "long",   BitOR($lparam, 0xC0000000))
		Case $evt = "down"
			DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYDOWN, "int", $skey, "long", $lparam)
		Case $evt = "up"
			DllCall($user32, "int", "PostMessage", "hwnd", $hwnd, "int", $WM_KEYUP, "int", $skey, "long",   BitOR($lparam, 0xC0000000))
		EndSelect		
	EndSwitch

	DllClose($user32)
EndFunc

_PostMessage_Send($hWnd, 0x2f, $Delay = 10)

$hWnd = WinGetHandle("PostMessage UDF - Seite 3 - Mozilla Firefox") ;
_PostMessage_Send($hWnd, "{F5}",1500)