GtkCalendar

## GtkCalendar GtkCalendar |

## Functions

gchar * | (*GtkCalendarDetailFunc) ()
GtkWidget * | gtk_calendar_new ()
gboolean | gtk_calendar_select_month ()
void | gtk_calendar_select_day ()
gboolean | gtk_calendar_mark_day ()
gboolean | gtk_calendar_unmark_day ()
void | gtk_calendar_clear_marks ()
GtkCalendarDisplayOptions | gtk_calendar_get_display_options ()
void | gtk_calendar_set_display_options ()
void | gtk_calendar_get_date ()
void | gtk_calendar_set_detail_func ()
gint | gtk_calendar_get_detail_width_chars ()
void | gtk_calendar_set_detail_width_chars ()
gint | gtk_calendar_get_detail_height_rows ()
void | gtk_calendar_set_detail_height_rows ()
void | gtk_calendar_display_options ()
void | gtk_calendar_freeze ()
void | gtk_calendar_thaw ()

## Properties

gint | day | Read / Write
gint | detail-height-rows | Read / Write
gint | detail-width-chars | Read / Write
gint | month | Read / Write
gboolean | no-month-change | Read / Write
gboolean | show-day-names | Read / Write
gboolean | show-details | Read / Write
gboolean | show-heading | Read / Write
gboolean | show-week-numbers | Read / Write
gint | year | Read / Write

## Style Properties

gint | horizontal-separation | Read
gint | inner-border | Read
gint | vertical-separation | Read

## Signals

void | day-selected | Run First
void | day-selected-double-click | Run First
void | month-changed | Run First
void | next-month | Run First
void | next-year | Run First
void | prev-month | Run First
void | prev-year | Run First

## Types and Values

struct | GtkCalendar
enum | GtkCalendarDisplayOptions

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkObject
                ╰── GtkWidget
                    ╰── GtkCalendar

## Implemented Interfaces

GtkCalendar implements AtkImplementorIface and GtkBuildable.

## Includes

    #include <gtk/gtk.h>

## Description

## Functions

### GtkCalendarDetailFunc ()

    gchar *
    (*GtkCalendarDetailFunc) (GtkCalendar *calendar,
                              guint year,
                              guint month,
                              guint day,
                              gpointer user_data);

This kind of functions provide Pango markup with detail information for the specified day. Examples for such details are holidays or appointments. The function returns `NULL` when no information is available.

#### Parameters

calendar | a GtkCalendar. |
year | the year for which details are needed. |
month | the month for which details are needed. |
day | the day of `month` for which details are needed. |
user_data | the data passed with `gtk_calendar_set_detail_func()`. |

#### Returns

Newly allocated string with Pango markup with details for the specified day, or `NULL`.

Since: 2.14

### gtk_calendar_new ()

    GtkWidget *
    gtk_calendar_new (void);

Creates a new calendar, with the current date being selected.

#### Returns

a newly GtkCalendar widget

### gtk_calendar_select_month ()

    gboolean
    gtk_calendar_select_month (GtkCalendar *calendar,
                               guint month,
                               guint year);

Shifts the calendar to a different month.

Note that this function always returns `TRUE`, and you should ignore the return value. In GTK+ 3, this function will not return a value.

#### Parameters

calendar | a GtkCalendar |
month | a month number between 0 and 11. |
year | the year the month is in. |

#### Returns

`TRUE`, always

### gtk_calendar_select_day ()

    void
    gtk_calendar_select_day (GtkCalendar *calendar,
                             guint day);

Selects a day from the current month.

#### Parameters

calendar | a GtkCalendar. |
day | the day number between 1 and 31, or 0 to unselect the currently selected day. |

### gtk_calendar_mark_day ()

    gboolean
    gtk_calendar_mark_day (GtkCalendar *calendar,
                           guint day);

Places a visual marker on a particular day.

Note that this function always returns `TRUE`, and you should ignore the return value. In GTK+ 3, this function will not return a value.

#### Parameters

calendar | a GtkCalendar |
day | the day number to mark between 1 and 31. |

#### Returns

`TRUE`, always

### gtk_calendar_unmark_day ()

    gboolean
    gtk_calendar_unmark_day (GtkCalendar *calendar,
                             guint day);

Removes the visual marker from a particular day.

Note that this function always returns `TRUE`, and you should ignore the return value. In GTK+ 3, this function will not return a value.

#### Parameters

calendar | a GtkCalendar. |
day | the day number to unmark between 1 and 31. |

#### Returns

`TRUE`, always

### gtk_calendar_clear_marks ()

    void
    gtk_calendar_clear_marks (GtkCalendar *calendar);

Remove all visual markers.

#### Parameters

calendar | a GtkCalendar |

### gtk_calendar_get_display_options ()

    GtkCalendarDisplayOptions
    gtk_calendar_get_display_options (GtkCalendar *calendar);

Returns the current display options of `calendar` .

#### Parameters

calendar | a GtkCalendar |

#### Returns

the display options.

Since: 2.4

### gtk_calendar_set_display_options ()

    void
    gtk_calendar_set_display_options (GtkCalendar *calendar,
                                      GtkCalendarDisplayOptions flags);

Sets display options (whether to display the heading and the month headings).

#### Parameters

calendar | a GtkCalendar |
flags | the display options to set |

Since: 2.4

### gtk_calendar_get_date ()

    void
    gtk_calendar_get_date (GtkCalendar *calendar,
                           guint *year,
                           guint *month,
                           guint *day);

Obtains the selected date from a GtkCalendar.

#### Parameters

calendar | a GtkCalendar |
year | location to store the year as a decimal number (e.g. 2011), or `NULL`. | [out][allow-none]
month | location to store the month number (between 0 and 11), or `NULL`. | [out][allow-none]
day | location to store the day number (between 1 and 31), or `NULL`. | [out][allow-none]

### gtk_calendar_set_detail_func ()

    void
    gtk_calendar_set_detail_func (GtkCalendar *calendar,
                                  GtkCalendarDetailFunc func,
                                  gpointer data,
                                  GDestroyNotify destroy);

Installs a function which provides Pango markup with detail information for each day. Examples for such details are holidays or appointments. That information is shown below each day when “show-details” is set. A tooltip containing with full detail information is provided, if the entire text should not fit into the details area, or if “show-details” is not set.

The size of the details area can be restricted by setting the “detail-width-chars” and “detail-height-rows” properties.

#### Parameters

calendar | a GtkCalendar. |
func | a function providing details for each day. |
data | data to pass to `func` invokations. |
destroy | a function for releasing `data` . |

Since: 2.14

### gtk_calendar_get_detail_width_chars ()

    gint
    gtk_calendar_get_detail_width_chars (GtkCalendar *calendar);

Queries the width of detail cells, in characters. See “detail-width-chars”.

#### Parameters

calendar | a GtkCalendar. |

#### Returns

The width of detail cells, in characters.

Since: 2.14

### gtk_calendar_set_detail_width_chars ()

    void
    gtk_calendar_set_detail_width_chars (GtkCalendar *calendar,
                                         gint chars);

Updates the width of detail cells. See “detail-width-chars”.

#### Parameters

calendar | a GtkCalendar. |
chars | detail width in characters. |

Since: 2.14

### gtk_calendar_get_detail_height_rows ()

    gint
    gtk_calendar_get_detail_height_rows (GtkCalendar *calendar);

Queries the height of detail cells, in rows. See “detail-width-chars”.

#### Parameters

calendar | a GtkCalendar. |

#### Returns

The height of detail cells, in rows.

Since: 2.14

### gtk_calendar_set_detail_height_rows ()

    void
    gtk_calendar_set_detail_height_rows (GtkCalendar *calendar,
                                         gint rows);

Updates the height of detail cells. See “detail-height-rows”.

#### Parameters

calendar | a GtkCalendar. |
rows | detail height in rows. |

Since: 2.14

### gtk_calendar_display_options ()

    void
    gtk_calendar_display_options (GtkCalendar *calendar,
                                  GtkCalendarDisplayOptions flags);

`gtk_calendar_display_options` has been deprecated since version 2.4 and should not be used in newly-written code.

Use `gtk_calendar_set_display_options()` instead

Sets display options (whether to display the heading and the month headings).

#### Parameters

calendar | a GtkCalendar. |
flags | the display options to set. |

### gtk_calendar_freeze ()

    void
    gtk_calendar_freeze (GtkCalendar *calendar);

`gtk_calendar_freeze` has been deprecated since version 2.8 and should not be used in newly-written code.

Does nothing. Previously locked the display of the calendar until it was thawed with `gtk_calendar_thaw()`.

#### Parameters

calendar | a GtkCalendar |

### gtk_calendar_thaw ()

    void
    gtk_calendar_thaw (GtkCalendar *calendar);

`gtk_calendar_thaw` has been deprecated since version 2.8 and should not be used in newly-written code.

Does nothing. Previously defrosted a calendar; all the changes made since the last `gtk_calendar_freeze()` were displayed.

#### Parameters

calendar | a GtkCalendar |

## Types and Values

### struct GtkCalendar

    struct GtkCalendar;

### enum GtkCalendarDisplayOptions

These options can be used to influence the display and behaviour of a GtkCalendar.

#### Members

GTK_CALENDAR_SHOW_HEADING | Specifies that the month and year should be displayed. |
GTK_CALENDAR_SHOW_DAY_NAMES | Specifies that three letter day descriptions should be present. |
GTK_CALENDAR_NO_MONTH_CHANGE | Prevents the user from switching months with the calendar. |
GTK_CALENDAR_SHOW_WEEK_NUMBERS | Displays each week numbers of the current year, down the left side of the calendar. |
GTK_CALENDAR_WEEK_START_MONDAY | Since GTK+ 2.4, this option is deprecated and ignored by GTK+. The information on which day the calendar week starts is derived from the locale. |
GTK_CALENDAR_SHOW_DETAILS | Just show an indicator, not the full details text when details are provided. See `gtk_calendar_set_detail_func()`. |

## Property Details

### The `“day”` property

      “day”                      gint

The selected day (as a number between 1 and 31, or 0 to unselect the currently selected day). This property gets initially set to the current day.

Flags: Read / Write

Allowed values: [0,31]

Default value: 0

### The `“detail-height-rows”` property

      “detail-height-rows”       gint

Height of a detail cell, in rows. A value of 0 allows any width. See `gtk_calendar_set_detail_func()`.

Flags: Read / Write

Allowed values: [0,127]

Default value: 0

Since: 2.14

### The `“detail-width-chars”` property

      “detail-width-chars”       gint

Width of a detail cell, in characters. A value of 0 allows any width. See `gtk_calendar_set_detail_func()`.

Flags: Read / Write

Allowed values: [0,127]

Default value: 0

Since: 2.14

### The `“month”` property

      “month”                    gint

The selected month (as a number between 0 and 11). This property gets initially set to the current month.

Flags: Read / Write

Allowed values: [0,11]

Default value: 0

### The `“no-month-change”` property

      “no-month-change”          gboolean

Determines whether the selected month can be changed.

Flags: Read / Write

Default value: FALSE

Since: 2.4

### The `“show-day-names”` property

      “show-day-names”           gboolean

Determines whether day names are displayed.

Flags: Read / Write

Default value: TRUE

Since: 2.4

### The `“show-details”` property

      “show-details”             gboolean

Determines whether details are shown directly in the widget, or if they are available only as tooltip. When this property is set days with details are marked.

Flags: Read / Write

Default value: TRUE

Since: 2.14

### The `“show-heading”` property

      “show-heading”             gboolean

Determines whether a heading is displayed.

Flags: Read / Write

Default value: TRUE

Since: 2.4

### The `“show-week-numbers”` property

      “show-week-numbers”        gboolean

Determines whether week numbers are displayed.

Flags: Read / Write

Default value: FALSE

Since: 2.4

### The `“year”` property

      “year”                     gint

The selected year. This property gets initially set to the current year.

Flags: Read / Write

Allowed values: [0,4194303]

Default value: 0

## Style Property Details

### The `“horizontal-separation”` style property

      “horizontal-separation”    gint

Separation between week headers and main area.

Flags: Read

Allowed values: >= 0

Default value: 4

### The `“inner-border”` style property

      “inner-border”             gint

The spacing around the day/week headers and main area.

Flags: Read

Allowed values: >= 0

Default value: 4

### The `“vertical-separation”` style property

      “vertical-separation”      gint

Space between day headers and main area.

Flags: Read

Allowed values: >= 0

Default value: 4

## Signal Details

### The `“day-selected”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First

### The `“day-selected-double-click”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First

### The `“month-changed”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Emitted when the user clicks a button to change the selected month on a calendar.

#### Parameters

calendar | the object which received the signal. |
user_data | user data set when the signal handler was connected. |

Flags: Run First

### The `“next-month”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First

### The `“next-year”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First

### The `“prev-month”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First

### The `“prev-year”` signal

    void
    user_function (GtkCalendar *calendar,
                   gpointer     user_data)

Flags: Run First