Sets our main struct and passes it to the parent class.
the main Gtk struct as a void*
Get the main Gtk struct
Appends append_value to the GstValueArray in value.
Appends append_value to the GstValueArray in value.
Gets the number of values contained in value.
Gets the value that is a member of the array contained in value and has the index index.
Prepends prepend_value to the GstValueArray in value.
the main Gtk struct