Activates the callback function of the GtkActionEntry that corresponds to
accel_path.
If no such action exists in entries, then nothing happens.
| accel_path |
the accelerator path of the action that we want to activate |
| data |
a pointer of data that will be passed to the callback if a tab-shortcut is found |
| entries |
a GtkActionEntry[] |
| entry_count |
the number of entries in |
|
a boolean that is TRUE if the action was found, otherwise it is FALSE |