open

Opens a subcontainer inside the given @builder. When done adding items to the subcontainer, g_variant_builder_close() must be called. @type is the type of the container: so to build a tuple of several values, @type must include the tuple itself.

It is an error to call this function in any way that would cause an inconsistent value to be constructed (ie: adding too many values or a value of an incorrect type).

Example of building a nested variant: |[ GVariantBuilder builder; guint32 some_number = get_number (); g_autoptr (GHashTable) some_dict = get_dict (); GHashTableIter iter; const gchar *key; const GVariant *value; g_autoptr (GVariant) output = NULL;

g_variant_builder_init (&builder, G_VARIANT_TYPE ("(ua{sv})")); g_variant_builder_add (&builder, "u", some_number); g_variant_builder_open (&builder, G_VARIANT_TYPE ("a{sv}"));

g_hash_table_iter_init (&iter, some_dict); while (g_hash_table_iter_next (&iter, (gpointer *) &key, (gpointer *) &value)) { g_variant_builder_open (&builder, G_VARIANT_TYPE ("{sv}")); g_variant_builder_add (&builder, "s", key); g_variant_builder_add (&builder, "v", value); g_variant_builder_close (&builder); }

g_variant_builder_close (&builder);

output = g_variant_builder_end (&builder); ]|

Parameters