Method
GLibKeyFileget_double
since: 2.12
Declaration [src]
gdouble
g_key_file_get_double (
GKeyFile* key_file,
const gchar* group_name,
const gchar* key,
GError** error
)
Description [src]
Returns the value associated with key
under group_name
as a
double. If group_name
is NULL
, the start_group is used.
If key
cannot be found then 0.0 is returned and error
is set to
G_KEY_FILE_ERROR_KEY_NOT_FOUND
. Likewise, if the value associated
with key
cannot be interpreted as a double then 0.0 is returned
and error
is set to G_KEY_FILE_ERROR_INVALID_VALUE
.
Available since: 2.12
Parameters
group_name
-
Type:
const gchar*
A group name.
The data is owned by the caller of the method. The value is a NUL terminated UTF-8 string. key
-
Type:
const gchar*
A key.
The data is owned by the caller of the method. The value is a NUL terminated UTF-8 string. error
-
Type:
GError **
The return location for a recoverable error.
The argument can be NULL
.If the return location is not NULL
, then you must initialize it to aNULL
GError*
.The argument will be left initialized to NULL
by the method if there are no errors.In case of error, the argument will be set to a newly allocated GError
; the caller will take ownership of the data, and be responsible for freeing it.