• System usage: #define EX_MENU 513
• Application usage: #define APP_EX_MENU -1513
• Processed by: sxdwm display manager drivers (_exhibition-dwm, _exhibition-tty,** etc.)

Description: Display the following menu:
session|menu_name|menu_title|menu_desc
button|button_text
...

If session is -1, it will automatically be guessed from the provided key by the drivers currently managing for that key. Note: this may result in undesired behavior if multiple sessions belong to the same user.