The types of @trigger1 and @trigger2 are #gconstpointer only to allow use of this function as a #GCompareFunc.
They must each be a GtkShortcutTrigger.
a GtkShortcutTrigger
An integer less than, equal to, or greater than zero if @trigger1 is found, respectively, to be less than, to match, or be greater than @trigger2.
See Implementation
The types of @trigger1 and @trigger2 are #gconstpointer only to allow use of this function as a #GCompareFunc.
They must each be a GtkShortcutTrigger.