switch windows keyboard layouts with super/windows key + space

win-layout-switcher.ahk

/*
i use **super+space** to switch keyboard layouts in my linux desktop.
sadly windows does not have this as an option. this script enables that shortcut.
disable windows' own hotkey in language settings, then run this script at startup, and win!
*/

#NoEnv
#Persistent
;#NoTrayIcon
#SingleInstance Force
#InstallKeybdHook
#UseHook On
#KeyHistory 0
SetBatchLines -1

WM_INPUTLANGCHANGEREQUEST := 0x50
INPUTLANGCHANGE_BACKWARD := 0x0002
INPUTLANGCHANGE_FORWARD := 0x0004
INPUTLANGCHANGE_SYSCHARSET := 0x0001

^Space::
  PostMessage, %WM_INPUTLANGCHANGEREQUEST%, %INPUTLANGCHANGE_FORWARD%,,, A
  /*
  | WM_INPUTLANGCHANGEREQUEST(
  |   wParam = new_locale_id|BACKWARD 0x0004|FORWARD 0x0002|SYSCHARSET 0x0001,
  |   lParam = locale_id  // optional
  | ) // https://docs.microsoft.com/en-us/windows/desktop/winmsg/wm-inputlangchangerequest
  */
Return