GtkMessageDialog: GTK+ 3 Reference Manual

GtkMessageDialog

GtkMessageDialog — A convenient message window

Functions

GtkWidget *	gtk_message_dialog_new ()
GtkWidget *	gtk_message_dialog_new_with_markup ()
void	gtk_message_dialog_set_markup ()
void	gtk_message_dialog_set_image ()
GtkWidget *	gtk_message_dialog_get_image ()
void	gtk_message_dialog_format_secondary_text ()
void	gtk_message_dialog_format_secondary_markup ()
GtkWidget *	gtk_message_dialog_get_message_area ()

Properties

GtkButtonsType	buttons	Write / Construct Only
GtkWidget *	image	Read / Write
GtkWidget *	message-area	Read
GtkMessageType	message-type	Read / Write / Construct
char *	secondary-text	Read / Write
gboolean	secondary-use-markup	Read / Write
char *	text	Read / Write
gboolean	use-markup	Read / Write

Style Properties

int

message-border

Read

Types and Values

struct	GtkMessageDialog
enum	GtkMessageType
enum	GtkButtonsType

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkWidget
            ╰── GtkContainer
                ╰── GtkBin
                    ╰── GtkWindow
                        ╰── GtkDialog
                            ╰── GtkMessageDialog

Implemented Interfaces

GtkMessageDialog implements AtkImplementorIface and GtkBuildable.

Includes

#include <gtk/gtk.h>

Description

GtkMessageDialog presents a dialog with 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.

One difference from GtkDialog is that GtkMessageDialog sets the “skip-taskbar-hint” property to TRUE, so that the dialog is hidden from the taskbar by default.

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.

An example for using a modal dialog:

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
dialog = gtk_message_dialog_new (parent_window,
                                 flags,
                                 GTK_MESSAGE_ERROR,
                                 GTK_BUTTONS_CLOSE,
                                 "Error reading “%s”: %s",
                                 filename,
                                 g_strerror (errno));
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);

You might do a non-modal GtkMessageDialog as follows:

An example for a non-modal dialog:

GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
dialog = gtk_message_dialog_new (parent_window,
                                 flags,
                                 GTK_MESSAGE_ERROR,
                                 GTK_BUTTONS_CLOSE,
                                 "Error reading “%s”: %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);

GtkMessageDialog as GtkBuildable

The GtkMessageDialog implementation of the GtkBuildable interface exposes the message area as an internal child with the name “message_area”.

Functions

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 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.

Parameters

parent	transient parent, or `NULL` for none.	[allow-none]
flags	flags
type	type of message
buttons	set of buttons to use
message_format	printf()-style format string, or `NULL`.	[allow-none]
...	arguments for `message_format`

Returns

a new GtkMessageDialog.

[transfer none]

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 some text that 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;
GtkDialogFlags flags = GTK_DIALOG_DESTROY_WITH_PARENT;
dialog = gtk_message_dialog_new (parent_window,
                                 flags,
                                 GTK_MESSAGE_ERROR,
                                 GTK_BUTTONS_CLOSE,
                                 NULL);
gtk_message_dialog_set_markup (GTK_MESSAGE_DIALOG (dialog),
                               markup);

Parameters

parent	transient parent, or `NULL` for none.	[allow-none]
flags	flags
type	type of message
buttons	set of buttons to use
message_format	printf()-style format string, or `NULL`.	[allow-none]
...	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.

Parameters

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);

gtk_message_dialog_set_image has been deprecated since version 3.12 and should not be used in newly-written code.

Use GtkDialog to create dialogs with images

Sets the dialog’s image to image .

Parameters

dialog	a GtkMessageDialog
image	the image

Since: 2.10

gtk_message_dialog_get_image ()

GtkWidget *
gtk_message_dialog_get_image (GtkMessageDialog *dialog);

gtk_message_dialog_get_image has been deprecated since version 3.12 and should not be used in newly-written code.

Use GtkDialog for dialogs with images

Gets the dialog’s image.

Parameters

dialog

a GtkMessageDialog

Returns

the dialog’s image.

[transfer none]

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).

Parameters

message_dialog	a GtkMessageDialog
message_format	printf()-style format string, or `NULL`.	[allow-none]
...	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.

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,
                                            "%s", msg);
g_free (msg);

Parameters

message_dialog	a GtkMessageDialog
message_format	printf()-style markup string (see Pango markup format), or `NULL`
...	arguments for `message_format`

Since: 2.6

gtk_message_dialog_get_message_area ()

GtkWidget *
gtk_message_dialog_get_message_area (GtkMessageDialog *message_dialog);

Returns the message area of the dialog. This is the box where the dialog’s primary and secondary labels are packed. You can add your own extra content to that box and it will appear below those labels. See gtk_dialog_get_content_area() for the corresponding function in the parent GtkDialog.

Parameters

message_dialog

a GtkMessageDialog

Returns

A GtkBox corresponding to the “message area” in the message_dialog .

[transfer none]

Since: 2.22

Types and Values

struct GtkMessageDialog

struct GtkMessageDialog;

enum GtkMessageType

The type of message being displayed in the dialog.

Members

GTK_MESSAGE_INFO	Informational message
GTK_MESSAGE_WARNING	Non-fatal warning message
GTK_MESSAGE_QUESTION	Question requiring a choice
GTK_MESSAGE_ERROR	Fatal error message
GTK_MESSAGE_OTHER	None of the above

enum 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().

Please note that GTK_BUTTONS_OK, GTK_BUTTONS_YES_NO and GTK_BUTTONS_OK_CANCEL are discouraged by the GNOME Human Interface Guidelines.

Members

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

Property Details

The `“buttons”` property

  “buttons”                  GtkButtonsType

The buttons shown in the message dialog.

Owner: GtkMessageDialog

Flags: Write / Construct Only

Default value: GTK_BUTTONS_NONE

The `“image”` property

  “image”                    GtkWidget *

The image for this dialog.

GtkMessageDialog:image has been deprecated since version 3.12 and should not be used in newly-written code.

Use GtkDialog to create dialogs with images

Owner: GtkMessageDialog

Flags: Read / Write

Since: 2.10

The `“message-area”` property

  “message-area”             GtkWidget *

The GtkBox that corresponds to the message area of this dialog. See gtk_message_dialog_get_message_area() for a detailed description of this area.

Owner: GtkMessageDialog

Flags: Read

Since: 2.22

The `“message-type”` property

  “message-type”             GtkMessageType

The type of the message.

Owner: GtkMessageDialog

Flags: Read / Write / Construct

Default value: GTK_MESSAGE_INFO

The `“secondary-text”` property

  “secondary-text”           char *

The secondary text of the message dialog.

Owner: GtkMessageDialog

Flags: Read / Write

Default value: NULL

Since: 2.10

The `“secondary-use-markup”` property

  “secondary-use-markup”     gboolean

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

Owner: GtkMessageDialog

Flags: Read / Write

Default value: FALSE

Since: 2.10

The `“text”` property

  “text”                     char *

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

Owner: GtkMessageDialog

Flags: Read / Write

Default value: ""

Since: 2.10

The `“use-markup”` property

  “use-markup”               gboolean

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

Owner: GtkMessageDialog

Flags: Read / Write

Default value: FALSE

Since: 2.10

Style Property Details

The `“message-border”` style property

  “message-border”           int

Width of border around the label in the message dialog.

Owner: GtkMessageDialog

Flags: Read

Allowed values: >= 0

Default value: 12