set_sort_func
Description:
Sets the comparison function used when sorting to be sort_func.
If the this has the sort type set to CUSTOM then the chooser will sort using this function.
To the comparison function will be passed two RecentInfo structs and sort_data
; sort_func should return a positive integer if the first item comes before the second, zero if the two items are equal and
a negative integer if the first item comes after the second.
Parameters:
| this | |
| sort_func |
the comparison function |
| data_destroy |
destroy notifier for |
| sort_data |
user data to pass to |