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. Since 2.24
a GVariantType
TRUE if type is a subtype of supertype
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. Since 2.24