Method
GLibVariantTypefirst
Declaration [src]
const GVariantType*
g_variant_type_first (
const GVariantType* type
)
Description [src]
Determines the first item type of a tuple or dictionary entry type.
This function may only be used with tuple or dictionary entry types,
but must not be used with the generic tuple type
G_VARIANT_TYPE_TUPLE
.
In the case of a dictionary entry type, this returns the type of the key.
NULL
is returned in case of type
being G_VARIANT_TYPE_UNIT
.
This call, together with g_variant_type_next()
provides an iterator
interface over tuple and dictionary entry types.