GtkMessageDialog
3
GTK Library

# GtkMessageDialog

A convenient message window

## Synopsis

    #include <gtk/gtk.h>

                        GtkMessageDialog;
    enum                GtkMessageType;
    enum                GtkButtonsType;
    GtkWidget*          gtk_message_dialog_new              (GtkWindow *parent,
                                                             GtkDialogFlags flags,
                                                             GtkMessageType type,
                                                             GtkButtonsType buttons,
                                                             const gchar *message_format,
                                                             ...);
    GtkWidget*          gtk_message_dialog_new_with_markup  (GtkWindow *parent,
                                                             GtkDialogFlags flags,
                                                             GtkMessageType type,
                                                             GtkButtonsType buttons,
                                                             const gchar *message_format,
                                                             ...);
    void                gtk_message_dialog_set_markup       (GtkMessageDialog *message_dialog,
                                                             const gchar *str);
    void                gtk_message_dialog_set_image        (GtkMessageDialog *dialog,
                                                             GtkWidget *image);
    GtkWidget *         gtk_message_dialog_get_image        (GtkMessageDialog *dialog);
    void                gtk_message_dialog_format_secondary_text
                                                            (GtkMessageDialog *message_dialog,
                                                             const gchar *message_format,
                                                             ...);
    void                gtk_message_dialog_format_secondary_markup
                                                            (GtkMessageDialog *message_dialog,
                                                             const gchar *message_format,
                                                             ...);

## Object Hierarchy

      GObject
       +----GInitiallyUnowned
             +----GtkObject
                   +----GtkWidget
                         +----GtkContainer
                               +----GtkBin
                                     +----GtkWindow
                                           +----GtkDialog
                                                 +----GtkMessageDialog

## Implemented Interfaces

GtkMessageDialog implements AtkImplementorIface and GtkBuildable.

## Properties

      "buttons"                  GtkButtonsType        : Write / Construct Only
      "image"                    GtkWidget*            : Read / Write
      "message-type"             GtkMessageType        : Read / Write / Construct
      "secondary-text"           gchar*                : Read / Write
      "secondary-use-markup"     gboolean              : Read / Write
      "text"                     gchar*                : Read / Write
      "use-markup"               gboolean              : Read / Write

## Style Properties

      "message-border"           gint                  : Read
      "use-separator"            gboolean              : Read

## Description

GtkMessageDialog presents a dialog with an image representing the type of message (Error, Question, etc.) alongside some message text. It's simply a convenience widget; you could construct the equivalent of GtkMessageDialog from GtkDialog without too much effort, but GtkMessageDialog saves typing.

The easiest way to do a modal message dialog is to use `gtk_dialog_run()`, though you can also pass in the `GTK_DIALOG_MODAL` flag, `gtk_dialog_run()` automatically makes the dialog modal and waits for the user to respond to it. `gtk_dialog_run()` returns when any dialog button is clicked.

### A modal dialog.

     dialog = gtk_message_dialog_new (main_application_window,
                                      GTK_DIALOG_DESTROY_WITH_PARENT,
                                      GTK_MESSAGE_ERROR,
                                      GTK_BUTTONS_CLOSE,
                                      "Error loading file '&percnt;s': &percnt;s",
                                      filename, g_strerror (errno));
     gtk_dialog_run (GTK_DIALOG (dialog));
     gtk_widget_destroy (dialog);

You might do a non-modal GtkMessageDialog as follows:

### A non-modal dialog.

     dialog = gtk_message_dialog_new (main_application_window,
                                      GTK_DIALOG_DESTROY_WITH_PARENT,
                                      GTK_MESSAGE_ERROR,
                                      GTK_BUTTONS_CLOSE,
                                      "Error loading file '&percnt;s': &percnt;s",
                                      filename, g_strerror (errno));
     /* Destroy the dialog when the user responds to it (e.g. clicks a button) */
     g_signal_connect_swapped (dialog, "response",
                               G_CALLBACK (gtk_widget_destroy),
                               dialog);

## Details

### GtkMessageDialog

    typedef struct _GtkMessageDialog GtkMessageDialog;

### enum GtkMessageType

    typedef enum
    {
      GTK_MESSAGE_INFO,
      GTK_MESSAGE_WARNING,
      GTK_MESSAGE_QUESTION,
      GTK_MESSAGE_ERROR,
      GTK_MESSAGE_OTHER
    } GtkMessageType;

The type of message being displayed in the dialog.

`GTK_MESSAGE_INFO`

  Informational message

`GTK_MESSAGE_WARNING`

  Nonfatal warning message

`GTK_MESSAGE_QUESTION`

  Question requiring a choice

`GTK_MESSAGE_ERROR`

  Fatal error message

`GTK_MESSAGE_OTHER`

  None of the above, doesn't get an icon

### enum GtkButtonsType

    typedef enum
    {
      GTK_BUTTONS_NONE,
      GTK_BUTTONS_OK,
      GTK_BUTTONS_CLOSE,
      GTK_BUTTONS_CANCEL,
      GTK_BUTTONS_YES_NO,
      GTK_BUTTONS_OK_CANCEL
    } GtkButtonsType;

Prebuilt sets of buttons for the dialog. If none of these choices are appropriate, simply use `GTK_BUTTONS_NONE` then call `gtk_dialog_add_buttons()`.

`GTK_BUTTONS_NONE`

  no buttons at all

`GTK_BUTTONS_OK`

  an OK button

`GTK_BUTTONS_CLOSE`

  a Close button

`GTK_BUTTONS_CANCEL`

  a Cancel button

`GTK_BUTTONS_YES_NO`

  Yes and No buttons

`GTK_BUTTONS_OK_CANCEL`

  OK and Cancel buttons

### gtk_message_dialog_new ()

    GtkWidget*          gtk_message_dialog_new              (GtkWindow *parent,
                                                             GtkDialogFlags flags,
                                                             GtkMessageType type,
                                                             GtkButtonsType buttons,
                                                             const gchar *message_format,
                                                             ...);

Creates a new message dialog, which is a simple dialog with an icon indicating the dialog type (error, warning, etc.) and some text the user may want to see. When the user clicks a button a "response" signal is emitted with response IDs from GtkResponseType. See GtkDialog for more details.

`parent` :

  transient parent, or `NULL` for none

`flags` :

  flags

`type` :

  type of message

`buttons` :

  set of buttons to use

`message_format` :

  `printf()`-style format string, or `NULL`

`...` :

  arguments for `message_format`

Returns :

  a new GtkMessageDialog

### gtk_message_dialog_new_with_markup ()

    GtkWidget*          gtk_message_dialog_new_with_markup  (GtkWindow *parent,
                                                             GtkDialogFlags flags,
                                                             GtkMessageType type,
                                                             GtkButtonsType buttons,
                                                             const gchar *message_format,
                                                             ...);

Creates a new message dialog, which is a simple dialog with an icon indicating the dialog type (error, warning, etc.) and some text which is marked up with the Pango text markup language. When the user clicks a button a "response" signal is emitted with response IDs from GtkResponseType. See GtkDialog for more details.

Special XML characters in the `printf()` arguments passed to this function will automatically be escaped as necessary. (See `g_markup_printf_escaped()` for how this is implemented.) Usually this is what you want, but if you have an existing Pango markup string that you want to use literally as the label, then you need to use `gtk_message_dialog_set_markup()` instead, since you can't pass the markup string either as the format (it might contain '%' characters) or as a string argument.

     GtkWidget *dialog;
     dialog = gtk_message_dialog_new (main_application_window,
                                      GTK_DIALOG_DESTROY_WITH_PARENT,
                                      GTK_MESSAGE_ERROR,
                                      GTK_BUTTONS_CLOSE,
                                      NULL);
     gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
                                    markup);

`parent` :

  transient parent, or `NULL` for none

`flags` :

  flags

`type` :

  type of message

`buttons` :

  set of buttons to use

`message_format` :

  `printf()`-style format string, or `NULL`

`...` :

  arguments for `message_format`

Returns :

  a new GtkMessageDialog

Since 2.4

### gtk_message_dialog_set_markup ()

    void                gtk_message_dialog_set_markup       (GtkMessageDialog *message_dialog,
                                                             const gchar *str);

Sets the text of the message dialog to be `str`, which is marked up with the Pango text markup language.

`message_dialog` :

  a GtkMessageDialog

`str` :

  markup string (see Pango markup format)

Since 2.4

### gtk_message_dialog_set_image ()

    void                gtk_message_dialog_set_image        (GtkMessageDialog *dialog,
                                                             GtkWidget *image);

Sets the dialog's image to `image`.

`dialog` :

  a GtkMessageDialog

`image` :

  the image

Since 2.10

### gtk_message_dialog_get_image ()

    GtkWidget *         gtk_message_dialog_get_image        (GtkMessageDialog *dialog);

Gets the dialog's image.

`dialog` :

  a GtkMessageDialog

Returns :

  the dialog's image

Since 2.14

### gtk_message_dialog_format_secondary_text ()

    void                gtk_message_dialog_format_secondary_text
                                                            (GtkMessageDialog *message_dialog,
                                                             const gchar *message_format,
                                                             ...);

Sets the secondary text of the message dialog to be `message_format` (with `printf()`-style).

Note that setting a secondary text makes the primary text become bold, unless you have provided explicit markup.

`message_dialog` :

  a GtkMessageDialog

`message_format` :

  `printf()`-style format string, or `NULL`

`...` :

  arguments for `message_format`

Since 2.6

### gtk_message_dialog_format_secondary_markup ()

    void                gtk_message_dialog_format_secondary_markup
                                                            (GtkMessageDialog *message_dialog,
                                                             const gchar *message_format,
                                                             ...);

Sets the secondary text of the message dialog to be `message_format` (with `printf()`-style), which is marked up with the Pango text markup language.

Note that setting a secondary text makes the primary text become bold, unless you have provided explicit markup.

Due to an oversight, this function does not escape special XML characters like `gtk_message_dialog_new_with_markup()` does. Thus, if the arguments may contain special XML characters, you should use `g_markup_printf_escaped()` to escape it.

    gchar *msg;

    msg = g_markup_printf_escaped (message_format, ...);
    gtk_message_dialog_format_secondary_markup (message_dialog, "&percnt;s", msg);
    g_free (msg);

`message_dialog` :

  a GtkMessageDialog

`message_format` :

  `printf()`-style markup string (see Pango markup format), or `NULL`

`...` :

  arguments for `message_format`

Since 2.6

## Property Details

### The `"buttons"` property

      "buttons"                  GtkButtonsType        : Write / Construct Only

The buttons shown in the message dialog.

Default value: GTK_BUTTONS_NONE

### The `"image"` property

      "image"                    GtkWidget*            : Read / Write

The image for this dialog.

Since 2.10

### The `"message-type"` property

      "message-type"             GtkMessageType        : Read / Write / Construct

The type of the message. The type is used to determine the image that is shown in the dialog, unless the image is explicitly set by the ::image property.

Default value: GTK_MESSAGE_INFO

### The `"secondary-text"` property

      "secondary-text"           gchar*                : Read / Write

The secondary text of the message dialog.

Default value: NULL

Since 2.10

### The `"secondary-use-markup"` property

      "secondary-use-markup"     gboolean              : Read / Write

`TRUE` if the secondary text of the dialog includes Pango markup. See `pango_parse_markup()`.

Default value: FALSE

Since 2.10

### The `"text"` property

      "text"                     gchar*                : Read / Write

The primary text of the message dialog. If the dialog has a secondary text, this will appear as the title.

Default value: ""

Since 2.10

### The `"use-markup"` property

      "use-markup"               gboolean              : Read / Write

`TRUE` if the primary text of the dialog includes Pango markup. See `pango_parse_markup()`.

Default value: FALSE

Since 2.10

## Style Property Details

### The `"message-border"` style property

      "message-border"           gint                  : Read

Width of border around the label and image in the message dialog.

Allowed values: >= 0

Default value: 12

### The `"use-separator"` style property

      "use-separator"            gboolean              : Read

Whether to draw a separator line between the message label and the buttons in the dialog.

Default value: FALSE

Since 2.4

## See Also

GtkDialog