javascript - how I can get return code of org.gnome.SessionManager.CanShutsown in JS? -


i want check if shutdown available current user( in javascript, not shell command). have try command in shell:

 dbus-send --session --type=method_call --print-reply --dest=org.gnome.sessionmanager /org/gnome/sessionmanager org.gnome.sessionmanager.canshutdown

i got return message"boolen true"

in gnome's documentaion, can see line: canshutdown (out 'b' is_available), don't know how use outsignatue in js.

can tell me how do? or other documentions. thank you!


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