Calls the provided function once for each field in the #GstStructure. In contrast to gst.structure.Structure.foreach_, the function may modify but not delete the fields. The structure must be mutable.
a function to call for each field
true if the supplied function returns true For each of the fields, false otherwise.
Calls the provided function once for each field in the #GstStructure. In contrast to gst.structure.Structure.foreach_, the function may modify but not delete the fields. The structure must be mutable.