Generic Preference Utilities

Files
file	gnc-prefs-utils.h
	Preferences initialization function.
file	gnc-prefs.h
	Generic api to store and retrieve preferences.

Macros
#define	GNC_PREFS_GROUP_GENERAL   "general"
#define	GNC_PREFS_GROUP_GENERAL_REGISTER   "general.register"
#define	GNC_PREFS_GROUP_GENERAL_REPORT   "general.report"
#define	GNC_PREFS_GROUP_WARNINGS   "general.warnings"
#define	GNC_PREFS_GROUP_WARNINGS_TEMP   "warnings.temporary"
#define	GNC_PREFS_GROUP_WARNINGS_PERM   "warnings.permanent"
#define	GNC_PREFS_GROUP_ACCT_SUMMARY   "window.pages.account-tree.summary"
#define	GNC_PREF_SAVE_GEOMETRY   "save-window-geometry"
#define	GNC_PREF_LAST_PATH   "last-path"
#define	GNC_PREF_USE_NEW   "use-new-window"
#define	GNC_PREF_ACCOUNTING_LABELS   "use-accounting-labels"
#define	GNC_PREF_ACCOUNT_SEPARATOR   "account-separator"
#define	GNC_PREF_NEGATIVE_IN_RED   "negative-in-red"
#define	GNC_PREF_NUM_SOURCE   "num-source"
#define	GNC_PREF_DATE_FORMAT   "date-format"
#define	GNC_PREF_DATE_COMPL_THISYEAR   "date-completion-thisyear"
#define	GNC_PREF_DATE_COMPL_SLIDING   "date-completion-sliding"
#define	GNC_PREF_DATE_BACKMONTHS   "date-backmonths"
#define	GNC_PREF_SHOW_LEAF_ACCT_NAMES   "show-leaf-account-names"
#define	GNC_PREF_ENTER_MOVES_TO_END   "enter-moves-to-end"
#define	GNC_PREF_DRAW_HOR_LINES   "draw-horizontal-lines"
#define	GNC_PREF_DRAW_VERT_LINES   "draw-vertical-lines"
#define	GNC_PREF_ALT_COLOR_BY_TRANS   "alternate-color-by-transaction"
#define	GNC_PREF_USE_THEME_COLORS   "use-theme-colors"
#define	GNC_PREF_TAB_TRANS_MEMORISED   "tab-to-transfer-on-memorised"
#define	GNC_PREF_FUTURE_AFTER_BLANK   "future-after-blank-transaction"
#define	GNC_PREF_START_CHOICE_ABS   "start-choice-absolute"
#define	GNC_PREF_START_CHOICE_REL   "start-choice-relative"
#define	GNC_PREF_START_DATE   "start-date"
#define	GNC_PREF_START_PERIOD   "start-period"
#define	GNC_PREF_END_CHOICE_ABS   "end-choice-absolute"
#define	GNC_PREF_END_CHOICE_REL   "end-choice-relative"
#define	GNC_PREF_END_DATE   "end-date"
#define	GNC_PREF_END_PERIOD   "end-period"
#define	GNC_PREF_CURRENCY_OTHER   "currency-other"
#define	GNC_PREF_CURRENCY_CHOICE_LOCALE   "currency-choice-locale"
#define	GNC_PREF_CURRENCY_CHOICE_OTHER   "currency-choice-other"

Functions
void	gnc_prefs_init (void)
gboolean	gnc_prefs_is_set_up (void)

Early bird functions, needed before any backend has been set up
const gchar *	gnc_prefs_get_namespace_regexp (void)
void	gnc_prefs_set_namespace_regexp (const gchar *str)
gboolean	gnc_prefs_is_debugging_enabled (void)
void	gnc_prefs_set_debugging (gboolean d)
gboolean	gnc_prefs_is_extra_enabled (void)
void	gnc_prefs_set_extra (gboolean enabled)
gboolean	gnc_prefs_get_file_save_compressed (void)
void	gnc_prefs_set_file_save_compressed (gboolean compressed)
gint	gnc_prefs_get_file_retention_policy (void)
void	gnc_prefs_set_file_retention_policy (gint policy)
gint	gnc_prefs_get_file_retention_days (void)
void	gnc_prefs_set_file_retention_days (gint days)
guint	gnc_prefs_get_long_version (void)

Listening for changes
gulong	gnc_prefs_register_cb (const char *group, const gchar *pref_name, gpointer func, gpointer user_data)
void	gnc_prefs_remove_cb_by_func (const gchar *group, const gchar *pref_name, gpointer func, gpointer user_data)
void	gnc_prefs_remove_cb_by_id (const gchar *group, guint id)
guint	gnc_prefs_register_group_cb (const gchar *group, gpointer func, gpointer user_data)
void	gnc_prefs_remove_group_cb_by_func (const gchar *group, gpointer func, gpointer user_data)
void	gnc_prefs_bind (const gchar *group, const gchar *pref_name, gpointer object, const gchar *property)

Preference Getters
gboolean	gnc_prefs_get_bool (const gchar *group, const gchar *pref_name)
gint	gnc_prefs_get_int (const gchar *group, const gchar *pref_name)
gint64	gnc_prefs_get_int64 (const gchar *group, const gchar *pref_name)
gdouble	gnc_prefs_get_float (const gchar *group, const gchar *pref_name)
gchar *	gnc_prefs_get_string (const gchar *group, const gchar *pref_name)
gint	gnc_prefs_get_enum (const gchar *group, const gchar *pref_name)
void	gnc_prefs_get_coords (const gchar *group, const gchar *pref_name, gdouble *x, gdouble *y)
GVariant *	gnc_prefs_get_value (const gchar *group, const gchar *pref_name)

Preference Setters and Unset Functions
gboolean	gnc_prefs_set_bool (const gchar *group, const gchar *pref_name, gboolean value)
gboolean	gnc_prefs_set_int (const gchar *group, const gchar *pref_name, gint value)
gboolean	gnc_prefs_set_int64 (const gchar *group, const gchar *pref_name, gint64 value)
gboolean	gnc_prefs_set_float (const gchar *group, const gchar *pref_name, gdouble value)
gboolean	gnc_prefs_set_string (const gchar *group, const gchar *pref_name, const gchar *value)
gboolean	gnc_prefs_set_enum (const gchar *group, const gchar *pref_name, gint value)
gboolean	gnc_prefs_set_coords (const gchar *group, const gchar *pref_name, gdouble x, gdouble y)
gboolean	gnc_prefs_set_value (const gchar *group, const gchar *pref_name, GVariant *value)
void	gnc_prefs_reset (const gchar *group, const gchar *pref_name)
void	gnc_prefs_reset_group (const gchar *group)

Detailed Description

The only function in this file is meant to initialize the preferences system early in the load process.

This is done in a way to hide the actual preferences backend from the rest of the engine.

The API in this file is used to read and store preferences used by gnucash. This api is a generic one. To actually store and load preferences, a preferences backend should be configured. Currently only one backend is defined: the preferences backend.

Note that preferences are organized in groups. Most functions will require both a group and a preference name to find the exact preference to work with.

Function Documentation

void gnc_prefs_bind	(	const gchar *	group,
		const gchar *	pref_name,
		gpointer	object,
		const gchar *	property
	)

Bind a setting to a g_object property. When this succeeds a change of the setting will automatically update the bound object property and vice versa.

Parameters

group	This string contains the group name of the preference to bind to.
preference	This string is the name of the particular preference to bind to.
object	The object to be bound.
property	The property of the object to bind to.

Definition at line 186 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->bind)
        (prefsbackend->bind) (group, pref_name, object, property);
}

gboolean gnc_prefs_get_bool	(	const gchar *	group,
		const gchar *	pref_name
	)

Get a boolean value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the TRUE or FALSE value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend.

Definition at line 196 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_bool)
        return (prefsbackend->get_bool) (group, pref_name);
    else
        return FALSE;
}

void gnc_prefs_get_coords	(	const gchar *	group,
		const gchar *	pref_name,
		gdouble *	x,
		gdouble *	y
	)

Get a pair of coordinates from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
x	The x coordinate to retrieve.
y	The y coordinate to retrieve.

If there is an error in processing, both coordinates will be set to zero.

Definition at line 257 of file gnc-prefs.c.

{
    GVariant *coords = gnc_prefs_get_value (group, pref_name);

    *x = 0;
    *y = 0;

    if (g_variant_is_of_type (coords, (const GVariantType *) "(dd)") )
        g_variant_get (coords, "(dd)", x, y);
    g_variant_unref (coords);
}

gint gnc_prefs_get_enum	(	const gchar *	group,
		const gchar *	pref_name
	)

Get an enum value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the enum value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend. If there is an error in processing, zero will be returned.

Definition at line 247 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_enum)
        return (prefsbackend->get_enum) (group, pref_name);
    else
        return 0;
}

gdouble gnc_prefs_get_float	(	const gchar *	group,
		const gchar *	pref_name
	)

Get an float value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the float value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend. If there is an error in processing, zero will be returned.

Definition at line 227 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_float)
        return (prefsbackend->get_float) (group, pref_name);
    else
        return 0.0;
}

gint gnc_prefs_get_int	(	const gchar *	group,
		const gchar *	pref_name
	)

Get an integer value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the integer value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend. If there is an error in processing, zero will be returned.

Definition at line 206 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_int)
        return (prefsbackend->get_int) (group, pref_name);
    else
        return 0;
}

gint64 gnc_prefs_get_int64	(	const gchar *	group,
		const gchar *	pref_name
	)

Get an 64 bit integer value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the 64 bit integer value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend. If there is an error in processing, zero will be returned.

Definition at line 216 of file gnc-prefs.c.

{
    gint64 result = 0;
    GVariant *var = gnc_prefs_get_value(group, pref_name);
    result = g_variant_get_int64 (var);
    g_variant_unref (var);
    return result;
}

gchar* gnc_prefs_get_string	(	const gchar *	group,
		const gchar *	pref_name
	)

Get a string value from the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the string value stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend If there is an error in processing, NULL will be returned.

Definition at line 237 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_string)
        return (prefsbackend->get_string) (group, pref_name);
    else
        return NULL;
}

GVariant* gnc_prefs_get_value	(	const gchar *	group,
		const gchar *	pref_name
	)

Get an arbitrary combination of values from the preferences backend. This combination of values can be anything that can be encapsulated in a GVariant structure.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Returns

This function returns the a GVariant encapsulating the combination of values stored at the requested preference in the preferences backend. If the preference has never been set, this function passes on the default value returned by the preferences backend. If there is an error in processing, NULL will be returned. It is the callers responsibility to free any GVariant data returned by this function.

Definition at line 272 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->get_value)
        return (prefsbackend->get_value) (group,pref_name);
    else
        return NULL;
}

void gnc_prefs_init

(

void

)

This function is called early in the load process to preload a number of preferences from the settings backend

Definition at line 82 of file gnc-prefs-utils.c.

{
    gnc_gsettings_load_backend();

    /* Initialize the core preferences by reading their values from the loaded backend.
     * Note: of no backend was loaded, these functions will return sane default values.
     */
    file_retain_changed_cb (NULL, NULL, NULL);
    file_retain_type_changed_cb (NULL, NULL, NULL);
    file_compression_changed_cb (NULL, NULL, NULL);

    /* Check for invalid retain_type (days)/retain_days (0) combo.
     * This can happen either because a user changed the preferences
     * manually outside of GnuCash, or because the user upgraded from
     * gnucash version 2.3.15 or older. Back then, 0 retain_days meant
     * "keep forever". From 2.3.15 on this is controlled via a multiple
     * choice ("retain_type").
     * So if we find a 0 retain_days value with a "days" retain_type,
     * we will silently and conservatively interpret is as meaning
     * retain forever ("forever" retain_type).
     */
    if ( (gnc_prefs_get_file_retention_policy () == XML_RETAIN_DAYS) &&
            (gnc_prefs_get_file_retention_days () == 0 ) )
    {
        gnc_prefs_set_file_retention_policy (XML_RETAIN_ALL);
        gnc_prefs_set_file_retention_days (30);
        gnc_prefs_set_bool (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_TYPE_FOREVER, TRUE);
        gnc_prefs_set_float (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_DAYS, 30);
        PWARN("retain 0 days policy was set, but this is probably not what the user wanted,\n"
              "assuming conservative policy 'forever'");
    }

    /* Add hooks to update core preferences whenever the associated preference changes */
    gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_DAYS,
                           file_retain_changed_cb, NULL);
    gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_TYPE_NEVER,
                           file_retain_type_changed_cb, NULL);
    gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_TYPE_DAYS,
                           file_retain_type_changed_cb, NULL);
    gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_RETAIN_TYPE_FOREVER,
                           file_retain_type_changed_cb, NULL);
    gnc_prefs_register_cb (GNC_PREFS_GROUP_GENERAL, GNC_PREF_FILE_COMPRESSION,
                           file_compression_changed_cb, NULL);

}

gboolean gnc_prefs_is_set_up

(

void

)

Test if preferences backend is set up

Definition at line 379 of file gnc-prefs.c.

{
    return (prefsbackend !=NULL);
}

gulong gnc_prefs_register_cb	(	const char *	group,
		const gchar *	pref_name,
		gpointer	func,
		gpointer	user_data
	)

Register a callback that gets triggered when the given preference changes. Any time the preference's value changes, the routine will be invoked and will be passed both the changed preference and the user data passed to this function.

Parameters

group	This string contains the group name of the preference to watch.
preference	This string contains the name of the preference to watch.
func	This is a pointer to the function to call when the preference changes.
user_data	This pointer will be passed to the callback function.

Returns

This function returns the handler id for the registered callback.

Definition at line 128 of file gnc-prefs.c.

{
    ENTER("group %s; pref_name %s, prefsbackend->register_cb %p", group, pref_name,
            prefsbackend ? prefsbackend->register_cb : NULL);
    if (prefsbackend && prefsbackend->register_cb)
    {
        LEAVE("");
        return (prefsbackend->register_cb) (group, pref_name, func, user_data);
    }
    else
    {
        LEAVE("no backend loaded, or the backend doesn't define register_cb, returning 0");
        return 0;
    }
}

guint gnc_prefs_register_group_cb	(	const gchar *	group,
		gpointer	func,
		gpointer	user_data
	)

Register a callback for when any preference in the settings group is changed. Any time the value of a preference in this group changes, the routine will be invoked and will be passed the specified user data.

Parameters

group	This string contains the name of the group that is being watched.
func	This is a pointer to the function to call when a preference changes.
user_data	This pointer will be passed to the callback function.

Definition at line 166 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->register_group_cb)
        return (prefsbackend->register_group_cb) (group, func, user_data);
    else
        return 0;
}

void gnc_prefs_remove_cb_by_func	(	const gchar *	group,
		const gchar *	pref_name,
		gpointer	func,
		gpointer	user_data
	)

Remove a function that was registered for a callback when the given preference changed. Both the func and user_data arguments are used to match up the callback to remove. If no matching func and user_data are found to be registered for the given preference, nothing will happen.

Parameters

group	This string contains the group name of the preference that is being watched.
preference	This string contains the name of the preference being watched.
func	This is a pointer to the function that was registered earlier.
user_data	This pointer was passed to the callback function when it was registered.

Definition at line 148 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->remove_cb_by_func)
        (prefsbackend->remove_cb_by_func) (group, pref_name, func, user_data);
}

void gnc_prefs_remove_cb_by_id	(	const gchar *	group,
		guint	id
	)

Remove a function that was registered for a callback when a specific preference in the settings group changed. The handler id that was generated when the callback was registered is use to find the callback to remove. If no handler id is found nothing will happen.

Parameters

group	This string contains the group name of the preference that is being watched.
id	The handler id of the callback to be removed.

Definition at line 158 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->remove_cb_by_id)
        (prefsbackend->remove_cb_by_id) (group, id);
}

void gnc_prefs_remove_group_cb_by_func	(	const gchar *	group,
		gpointer	func,
		gpointer	user_data
	)

Remove a function that was registered for a callback when any preference in the given settings group changed. Both the func and user_data arguments are used to match up the callback to remove. If no matching func and user_data are found to be registered for the given preference, nothing will happen.

Parameters

group	This string contains the name of the group that is being watched.
func	This is a pointer to the function that was registered earlier.
user_data	This pointer was passed to the callback function when it was registered.

Note

there is no gnc_settings_remove_any_cb_by_id. Use gnc_settings_remove_cb_by_id instead if you want to remove a callback set with gnc_settings_register_any_cb by its handler id.

Definition at line 177 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->remove_group_cb_by_func)
        (prefsbackend->remove_group_cb_by_func) (group, func, user_data);
}

void gnc_prefs_reset	(	const gchar *	group,
		const gchar *	pref_name
	)

Reset a preference to its default value in the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.

Definition at line 366 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->reset)
        (prefsbackend->reset) (group, pref_name);
}

void gnc_prefs_reset_group

(

const gchar *

group

)

Reset all preferences in a group to their default values in the preferences backend.

Parameters

group

This string specifies the group to which the preference belongs

Definition at line 373 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->reset_group)
        (prefsbackend->reset_group) (group);
}

gboolean gnc_prefs_set_bool	(	const gchar *	group,
		const gchar *	pref_name,
		gboolean	value
	)

Store a boolean value into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The boolean value to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 282 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_bool)
        return (prefsbackend->set_bool) (group, pref_name, value);
    else
        return FALSE;
}

gboolean gnc_prefs_set_coords	(	const gchar *	group,
		const gchar *	pref_name,
		gdouble	x,
		gdouble	y
	)

Store coordinates into the preferences backend. Coordinates consist of a pair of floating point values (x and y).

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
x	The x coordinate to be stored.
y	The y coordinate to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 346 of file gnc-prefs.c.

{
    GVariant *var = g_variant_new ("(dd)",x, y);
    return gnc_prefs_set_value (group, pref_name, var);
}

gboolean gnc_prefs_set_enum	(	const gchar *	group,
		const gchar *	pref_name,
		gint	value
	)

Store an enum value into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The enum number to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 335 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_enum)
        return (prefsbackend->set_enum) (group, pref_name, value);
    else
        return FALSE;
}

gboolean gnc_prefs_set_float	(	const gchar *	group,
		const gchar *	pref_name,
		gdouble	value
	)

Store a float value into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The floating point number to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 313 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_float)
        return (prefsbackend->set_float) (group, pref_name, value);
    else
        return FALSE;
}

gboolean gnc_prefs_set_int	(	const gchar *	group,
		const gchar *	pref_name,
		gint	value
	)

Store an integer value into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The integer number to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 293 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_int)
        return (prefsbackend->set_int) (group, pref_name, value);
    else
        return FALSE;
}

gboolean gnc_prefs_set_int64	(	const gchar *	group,
		const gchar *	pref_name,
		gint64	value
	)

Store a 64 bit integer value into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The 64 bit integer number to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 304 of file gnc-prefs.c.

{
    GVariant *var = g_variant_new ("x",value);
    return gnc_prefs_set_value (group, pref_name, var);
}

gboolean gnc_prefs_set_string	(	const gchar *	group,
		const gchar *	pref_name,
		const gchar *	value
	)

Store a string into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The string to be stored. the preferences backend will make a copy of this string, so it is the callers responsibility to free the space used by this string (if necessary).

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 324 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_string)
        return (prefsbackend->set_string) (group, pref_name, value);
    else
        return FALSE;
}

gboolean gnc_prefs_set_value	(	const gchar *	group,
		const gchar *	pref_name,
		GVariant *	value
	)

Store an arbitrary combination of values into the preferences backend.

Parameters

group	This string specifies the group to which the preference belongs
preference	This string is the name of the particular preference within the named group of the preferences backend.
value	The combination of values encapsulated in a GVariant to be stored.

Returns

This function returns true if the value was set successfully on the preference or false if not.

Definition at line 355 of file gnc-prefs.c.

{
    if (prefsbackend && prefsbackend->set_value)
        return (prefsbackend->set_value) (group, pref_name, value);
    else
        return FALSE;
}