## Settings

Settings — Sharing settings between applications

## Synopsis

    #include <gtk/gtk.h>

                GtkSettings;
                GtkSettingsValue;
    GtkSettings* gtk_settings_get_default       (void);
    GtkSettings* gtk_settings_get_for_screen    (GdkScreen *screen);
    void        gtk_settings_install_property   (GParamSpec *pspec);
    void        gtk_settings_install_property_parser
                                                (GParamSpec *pspec,
                                                 GtkRcPropertyParser parser);
    gboolean    gtk_rc_property_parse_color     (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);
    gboolean    gtk_rc_property_parse_enum      (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);
    gboolean    gtk_rc_property_parse_flags     (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);
    gboolean    gtk_rc_property_parse_requisition
                                                (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);
    gboolean    gtk_rc_property_parse_border    (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);
    void        gtk_settings_set_property_value (GtkSettings *settings,
                                                 const gchar *name,
                                                 const GtkSettingsValue *svalue);
    void        gtk_settings_set_string_property
                                                (GtkSettings *settings,
                                                 const gchar *name,
                                                 const gchar *v_string,
                                                 const gchar *origin);
    void        gtk_settings_set_long_property  (GtkSettings *settings,
                                                 const gchar *name,
                                                 glong v_long,
                                                 const gchar *origin);
    void        gtk_settings_set_double_property
                                                (GtkSettings *settings,
                                                 const gchar *name,
                                                 gdouble v_double,
                                                 const gchar *origin);

## Object Hierarchy

      GObject
       +----GtkSettings

## Properties

      "gtk-alternative-button-order" gboolean              : Read / Write
      "gtk-button-images"    gboolean              : Read / Write
      "gtk-can-change-accels" gboolean              : Read / Write
      "gtk-color-palette"    gchararray            : Read / Write
      "gtk-cursor-blink"     gboolean              : Read / Write
      "gtk-cursor-blink-time" gint                  : Read / Write
      "gtk-cursor-theme-name" gchararray            : Read / Write
      "gtk-cursor-theme-size" gint                  : Read / Write
      "gtk-dnd-drag-threshold" gint                  : Read / Write
      "gtk-double-click-distance" gint                  : Read / Write
      "gtk-double-click-time" gint                  : Read / Write
      "gtk-entry-select-on-focus" gboolean              : Read / Write
      "gtk-fallback-icon-theme" gchararray            : Read / Write
      "gtk-font-name"        gchararray            : Read / Write
      "gtk-icon-sizes"       gchararray            : Read / Write
      "gtk-icon-theme-name"  gchararray            : Read / Write
      "gtk-key-theme-name"   gchararray            : Read / Write
      "gtk-menu-bar-accel"   gchararray            : Read / Write
      "gtk-menu-bar-popup-delay" gint                  : Read / Write
      "gtk-menu-images"      gboolean              : Read / Write
      "gtk-menu-popdown-delay" gint                  : Read / Write
      "gtk-menu-popup-delay" gint                  : Read / Write
      "gtk-modules"          gchararray            : Read / Write
      "gtk-split-cursor"     gboolean              : Read / Write
      "gtk-theme-name"       gchararray            : Read / Write
      "gtk-toolbar-icon-size" GtkIconSize           : Read / Write
      "gtk-toolbar-style"    GtkToolbarStyle       : Read / Write
      "gtk-xft-antialias"    gint                  : Read / Write
      "gtk-xft-dpi"          gint                  : Read / Write
      "gtk-xft-hinting"      gint                  : Read / Write
      "gtk-xft-hintstyle"    gchararray            : Read / Write
      "gtk-xft-rgba"         gchararray            : Read / Write

## Description

## Details

### GtkSettings

    typedef struct _GtkSettings GtkSettings;

### GtkSettingsValue

    typedef struct {
      /* origin should be something like "filename:linenumber" for rc files,
       * or e.g. "XProperty" for other sources
       */
      gchar *origin;

      /* valid types are LONG, DOUBLE and STRING corresponding to the token parsed,
       * or a GSTRING holding an unparsed statement
       */
      GValue value;
    } GtkSettingsValue;

### gtk_settings_get_default ()

    GtkSettings* gtk_settings_get_default       (void);

Gets the GtkSettings object for the default GDK screen, creating it if necessary. See `gtk_settings_get_for_screen()`.

Returns : | a GtkSettings object. If there is no default screen, then returns `NULL`.

### gtk_settings_get_for_screen ()

    GtkSettings* gtk_settings_get_for_screen    (GdkScreen *screen);

Gets the GtkSettings object for `screen`, creating it if necessary.

`screen` : | a GdkScreen.
Returns : | a GtkSettings object.

Since 2.2

### gtk_settings_install_property ()

    void        gtk_settings_install_property   (GParamSpec *pspec);

`pspec` : |

### gtk_settings_install_property_parser ()

    void        gtk_settings_install_property_parser
                                                (GParamSpec *pspec,
                                                 GtkRcPropertyParser parser);

`pspec` : |
`parser` : |

### gtk_rc_property_parse_color ()

    gboolean    gtk_rc_property_parse_color     (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);

A GtkRcPropertyParser for use with `gtk_settings_install_property_parser()` or `gtk_widget_class_install_style_property_parser()` which parses a color given either by its name or in the form `{ red, green, blue }` where `red`, `green` and `blue` are integers between 0 and 65535 or floating-point numbers between 0 and 1.

`pspec` : | a GParamSpec
`gstring` : | the GString to be parsed
`property_value` : | a GValue which must hold GdkColor values.
Returns : | `TRUE` if `gstring` could be parsed and `property_value` has been set to the resulting GdkColor.

### gtk_rc_property_parse_enum ()

    gboolean    gtk_rc_property_parse_enum      (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);

A GtkRcPropertyParser for use with `gtk_settings_install_property_parser()` or `gtk_widget_class_install_style_property_parser()` which parses a single enumeration value.

The enumeration value can be specified by its name, its nickname or its numeric value. For consistency with flags parsing, the value may be surrounded by parentheses.

`pspec` : | a GParamSpec
`gstring` : | the GString to be parsed
`property_value` : | a GValue which must hold enum values.
Returns : | `TRUE` if `gstring` could be parsed and `property_value` has been set to the resulting GEnumValue.

### gtk_rc_property_parse_flags ()

    gboolean    gtk_rc_property_parse_flags     (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);

A GtkRcPropertyParser for use with `gtk_settings_install_property_parser()` or `gtk_widget_class_install_style_property_parser()` which parses flags.

Flags can be specified by their name, their nickname or numerically. Multiple flags can be specified in the form `"( flag1 | flag2 | ... )"`.

`pspec` : | a GParamSpec
`gstring` : | the GString to be parsed
`property_value` : | a GValue which must hold flags values.
Returns : | `TRUE` if `gstring` could be parsed and `property_value` has been set to the resulting flags value.

### gtk_rc_property_parse_requisition ()

    gboolean    gtk_rc_property_parse_requisition
                                                (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);

A GtkRcPropertyParser for use with `gtk_settings_install_property_parser()` or `gtk_widget_class_install_style_property_parser()` which parses a requisition in the form `"{ width, height }"` for integers `width` and `height`.

`pspec` : | a GParamSpec
`gstring` : | the GString to be parsed
`property_value` : | a GValue which must hold boxed values.
Returns : | `TRUE` if `gstring` could be parsed and `property_value` has been set to the resulting GtkRequisition.

### gtk_rc_property_parse_border ()

    gboolean    gtk_rc_property_parse_border    (const GParamSpec *pspec,
                                                 const GString *gstring,
                                                 GValue *property_value);

A GtkRcPropertyParser for use with `gtk_settings_install_property_parser()` or `gtk_widget_class_install_style_property_parser()` which parses borders in the form `"{ left, right, top, bottom }"` for integers `left`, `right`, `top` and `bottom`.

`pspec` : | a GParamSpec
`gstring` : | the GString to be parsed
`property_value` : | a GValue which must hold boxed values.
Returns : | `TRUE` if `gstring` could be parsed and `property_value` has been set to the resulting GtkBorder.

### gtk_settings_set_property_value ()

    void        gtk_settings_set_property_value (GtkSettings *settings,
                                                 const gchar *name,
                                                 const GtkSettingsValue *svalue);

`settings` : |
`name` : |
`svalue` : |

### gtk_settings_set_string_property ()

    void        gtk_settings_set_string_property
                                                (GtkSettings *settings,
                                                 const gchar *name,
                                                 const gchar *v_string,
                                                 const gchar *origin);

`settings` : |
`name` : |
`v_string` : |
`origin` : |

### gtk_settings_set_long_property ()

    void        gtk_settings_set_long_property  (GtkSettings *settings,
                                                 const gchar *name,
                                                 glong v_long,
                                                 const gchar *origin);

`settings` : |
`name` : |
`v_long` : |
`origin` : |

### gtk_settings_set_double_property ()

    void        gtk_settings_set_double_property
                                                (GtkSettings *settings,
                                                 const gchar *name,
                                                 gdouble v_double,
                                                 const gchar *origin);

`settings` : |
`name` : |
`v_double` : |
`origin` : |

## Property Details

### The "`gtk-alternative-button-order`" property

      "gtk-alternative-button-order" gboolean              : Read / Write

Whether buttons in dialogs should use the alternative button order.

Default value: FALSE

### The "`gtk-button-images`" property

      "gtk-button-images"    gboolean              : Read / Write

Whether stock icons should be shown in buttons.

Default value: TRUE

### The "`gtk-can-change-accels`" property

      "gtk-can-change-accels" gboolean              : Read / Write

Whether menu accelerators can be changed by pressing a key over the menu item.

Default value: FALSE

### The "`gtk-color-palette`" property

      "gtk-color-palette"    gchararray            : Read / Write

Palette to use in the color selector.

Default value: "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90"

### The "`gtk-cursor-blink`" property

      "gtk-cursor-blink"     gboolean              : Read / Write

Whether the cursor should blink.

Default value: TRUE

### The "`gtk-cursor-blink-time`" property

      "gtk-cursor-blink-time" gint                  : Read / Write

Length of the cursor blink cycle, in milleseconds.

Allowed values: >= 100

Default value: 1200

### The "`gtk-cursor-theme-name`" property

      "gtk-cursor-theme-name" gchararray            : Read / Write

Name of the cursor theme to use.

Default value: NULL

### The "`gtk-cursor-theme-size`" property

      "gtk-cursor-theme-size" gint                  : Read / Write

Size to use for cursors.

Allowed values: [0,128]

Default value: 24

### The "`gtk-dnd-drag-threshold`" property

      "gtk-dnd-drag-threshold" gint                  : Read / Write

Number of pixels the cursor can move before dragging.

Allowed values: >= 1

Default value: 8

### The "`gtk-double-click-distance`" property

      "gtk-double-click-distance" gint                  : Read / Write

Maximum distance allowed between two clicks for them to be considered a double click (in pixels).

Allowed values: >= 0

Default value: 5

### The "`gtk-double-click-time`" property

      "gtk-double-click-time" gint                  : Read / Write

Maximum time allowed between two clicks for them to be considered a double click (in milliseconds).

Allowed values: >= 0

Default value: 250

### The "`gtk-entry-select-on-focus`" property

      "gtk-entry-select-on-focus" gboolean              : Read / Write

Whether to select the contents of an entry when it is focused.

Default value: TRUE

### The "`gtk-fallback-icon-theme`" property

      "gtk-fallback-icon-theme" gchararray            : Read / Write

Name of a icon theme to fall back to.

Default value: NULL

### The "`gtk-font-name`" property

      "gtk-font-name"        gchararray            : Read / Write

Name of default font to use.

Default value: "Sans 10"

### The "`gtk-icon-sizes`" property

      "gtk-icon-sizes"       gchararray            : Read / Write

List of icon sizes (gtk-menu=16,16:gtk-button=20,20...

Default value: NULL

### The "`gtk-icon-theme-name`" property

      "gtk-icon-theme-name"  gchararray            : Read / Write

Name of icon theme to use.

Default value: "hicolor"

### The "`gtk-key-theme-name`" property

      "gtk-key-theme-name"   gchararray            : Read / Write

Name of key theme RC file to load.

Default value: NULL

### The "`gtk-menu-bar-accel`" property

      "gtk-menu-bar-accel"   gchararray            : Read / Write

Keybinding to activate the menu bar.

Default value: "F10"

### The "`gtk-menu-bar-popup-delay`" property

      "gtk-menu-bar-popup-delay" gint                  : Read / Write

Delay before the submenus of a menu bar appear.

Allowed values: >= 0

Default value: 0

### The "`gtk-menu-images`" property

      "gtk-menu-images"      gboolean              : Read / Write

Whether images should be shown in menus.

Default value: TRUE

### The "`gtk-menu-popdown-delay`" property

      "gtk-menu-popdown-delay" gint                  : Read / Write

The time before hiding a submenu when the pointer is moving towards the submenu.

Allowed values: >= 0

Default value: 1000

### The "`gtk-menu-popup-delay`" property

      "gtk-menu-popup-delay" gint                  : Read / Write

Minimum time the pointer must stay over a menu item before the submenu appear.

Allowed values: >= 0

Default value: 225

### The "`gtk-modules`" property

      "gtk-modules"          gchararray            : Read / Write

List of currently active GTK modules.

Default value: NULL

### The "`gtk-split-cursor`" property

      "gtk-split-cursor"     gboolean              : Read / Write

Whether two cursors should be displayed for mixed left-to-right and right-to-left text.

Default value: TRUE

### The "`gtk-theme-name`" property

      "gtk-theme-name"       gchararray            : Read / Write

Name of theme RC file to load.

Default value: "Raleigh"

### The "`gtk-toolbar-icon-size`" property

      "gtk-toolbar-icon-size" GtkIconSize           : Read / Write

Size of icons in default toolbars.

Default value: GTK_ICON_SIZE_LARGE_TOOLBAR

### The "`gtk-toolbar-style`" property

      "gtk-toolbar-style"    GtkToolbarStyle       : Read / Write

Whether default toolbars have text only, text and icons, icons only, etc.

Default value: GTK_TOOLBAR_BOTH

### The "`gtk-xft-antialias`" property

      "gtk-xft-antialias"    gint                  : Read / Write

Whether to antialias Xft fonts; 0=no, 1=yes, -1=default.

Allowed values: [-1,1]

Default value: -1

### The "`gtk-xft-dpi`" property

      "gtk-xft-dpi"          gint                  : Read / Write

Resolution for Xft, in 1024 * dots/inch. -1 to use default value.

Allowed values: [-1,1048576]

Default value: -1

### The "`gtk-xft-hinting`" property

      "gtk-xft-hinting"      gint                  : Read / Write

Whether to hint Xft fonts; 0=no, 1=yes, -1=default.

Allowed values: [-1,1]

Default value: -1

### The "`gtk-xft-hintstyle`" property

      "gtk-xft-hintstyle"    gchararray            : Read / Write

What degree of hinting to use; hintnone, hintslight, hintmedium, or hintfull.

Default value: NULL

### The "`gtk-xft-rgba`" property

      "gtk-xft-rgba"         gchararray            : Read / Write

Type of subpixel antialiasing; none, rgb, bgr, vrgb, vbgr.

Default value: NULL