Function

GObject-2.0 ▶ GObject ▶ signal_add_emission_hook

signal_add_emission_hook(
    signal_id: number,
    detail: number,
    hook_func: SignalEmissionHook,
    data_destroy?: DestroyNotify,
): number
Adds an emission hook for a signal, which will get called for any emission of that signal, independent of the instance. This is possible only for signals which don't have GObject.SignalFlags.NO_HOOKS flag set.
Parameters
- signal_id: number
  the signal identifier, as returned by g_signal_lookup().
- detail: number
  the detail on which to call the hook.
- hook_func: SignalEmissionHook
  a GObject.SignalEmissionHook function.
- Optionaldata_destroy: DestroyNotify
  a GLib.DestroyNotify for hook_data.
Returns number
the hook id, for later use with g_signal_remove_emission_hook().
- Defined in gobject-2.0/gobject-2.0.d.ts:1648