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 GstValueList in @value.
Appends @append_value to the GstValueList in @value.
Concatenates copies of @value1 and @value2 into a list. Values that are not of type #GST_TYPE_LIST are treated as if they were lists of length 1. @dest will be initialized to the type #GST_TYPE_LIST.
Gets the number of values contained in @value.
Gets the value that is a member of the list contained in @value and has the index @index.
Merges copies of @value1 and @value2. Values that are not of type #GST_TYPE_LIST are treated as if they were lists of length 1.
Prepends @prepend_value to the GstValueList in @value.
the main Gtk struct