first item found equal to data according to cmp_func and cmp_data, or null if no such item exists
Sequence.lookup
glib.sequence_iter.SequenceIter lookup(void * data, glib.types.CompareDataFunc cmpFunc)Returns an iterator pointing to the position of the first item found equal to data according to cmp_func and cmp_data. If more than one item is equal, it is not guaranteed that it is the first which is returned. In that case, you can use [glib.sequence_iter.SequenceIter.next] and [glib.sequence_iter.SequenceIter.prev] to get others.
cmp_func is called with two items of the seq, and cmp_data. It should return 0 if the items are equal, a negative value if the first item comes before the second, and a positive value if the second item comes before the first.
This function will fail if the data contained in the sequence is unsorted.
Parameters
data | data to look up |
cmpFunc | the function used to compare items in the sequence |
Returns
an #GSequenceIter pointing to the position of the