Finds the first entry in an accelerator group for which find_func returns TRUE and returns its GtkAccelKey.
a function to filter the entries of accel_group with
data to pass to find_func
the key of the first entry passing find_func. The key is owned by GTK+ and must not be freed. [transfer none]
See Implementation
Finds the first entry in an accelerator group for which find_func returns TRUE and returns its GtkAccelKey.