Checks if @type is a subtype of @supertype.
This function returns %TRUE if @type is a subtype of @supertype. All types are considered to be subtypes of themselves. Aside from that, only indefinite types can have subtypes.
a #GVariantType
Return: %TRUE if @type is a subtype of @supertype
Since 2.24
See Implementation
Checks if @type is a subtype of @supertype.
This function returns %TRUE if @type is a subtype of @supertype. All types are considered to be subtypes of themselves. Aside from that, only indefinite types can have subtypes.