get_all_control_bindings

Get all the control bindings that have been created for the children properties of the track element using set_control_source.

The keys used in the returned hash table are the child property names that were passed to set_control_source, and their values are the corresponding created ControlBinding.

Parameters:

this	A TrackElement

Returns:

A hash table containing all child-property-name/control-binding pairs for this.