Method

GLibVariantlookup

since: 2.28

Declaration [src]

gboolean
g_variant_lookup (
  GVariant* dictionary,
  const gchar* key,
  const gchar* format_string,
  ...
)

Description [src]

Looks up a value in a dictionary GVariant.

This function is a wrapper around g_variant_lookup_value() and g_variant_get(). In the case that NULL would have been returned, this function returns FALSE. Otherwise, it unpacks the returned value and returns TRUE.

format_string determines the C types that are used for unpacking the values and also determines if the values are copied or borrowed, see the section on GVariant format strings.

This function is currently implemented with a linear scan. If you plan to do many lookups then GVariantDict may be more efficient.

Available since: 2.28

This method is not directly available to language bindings.

Parameters

key

Type: const gchar*

The key to look up in the dictionary.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
format_string

Type: const gchar*

A GVariant format string.

The data is owned by the caller of the method.
The value is a NUL terminated UTF-8 string.
...

Type: 

The arguments to unpack the value into.

Return value

Type: gboolean

TRUE if a value was unpacked.