Calls the provided function once for each field in the #GstStructure. In contrast to gst_structure_foreach(), the function may modify but not delete the fields. The structure must be mutable.
a function to call for each field
private data
Return: %TRUE if the supplied function returns %TRUE For each of the fields, %FALSE otherwise.
See Implementation
Calls the provided function once for each field in the #GstStructure. In contrast to gst_structure_foreach(), the function may modify but not delete the fields. The structure must be mutable.