GI.Gtk.Objects.MessageDialog

MessageDialog presents a dialog with some message text. It’s simply a convenience widget; you could construct the equivalent of MessageDialog from Dialog without too much effort, but MessageDialog saves typing.

One difference from Dialog is that MessageDialog sets the Window: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 dialogRun, though you can also pass in the DialogFlagsModal flag, dialogRun automatically makes the dialog modal and waits for the user to respond to it. dialogRun returns when any dialog button is clicked.

An example for using a modal dialog:

C code

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 MessageDialog as follows:

An example for a non-modal dialog:

C code

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”.

Exported types

newtype MessageDialog

Memory-managed wrapper type.

Constructors

MessageDialog (ManagedPtr MessageDialog)

Instances

GObject MessageDialog

Defined in GI.Gtk.Objects.MessageDialog

Methods

gobjectType :: IO GType

HasParentTypes MessageDialog

Defined in GI.Gtk.Objects.MessageDialog

type ParentTypes MessageDialog

Defined in GI.Gtk.Objects.MessageDialog

type ParentTypes MessageDialog = Dialog ': (Window ': (Bin ': (Container ': (Widget ': (Object ': (ImplementorIface ': (Buildable ': ([] :: [Type]))))))))

class (GObject o, IsDescendantOf MessageDialog o) => IsMessageDialog o

Type class for types which can be safely cast to MessageDialog, for instance with toMessageDialog.

Instances

(GObject o, IsDescendantOf MessageDialog o) => IsMessageDialog o

Defined in GI.Gtk.Objects.MessageDialog

toMessageDialog :: (MonadIO m, IsMessageDialog o) => o -> m MessageDialog

Cast to MessageDialog, for types for which this is known to be safe. For general casts, use castTo.

noMessageDialog :: Maybe MessageDialog

A convenience alias for Nothing :: Maybe MessageDialog.

Methods

getImage

messageDialogGetImage

Arguments

:: (HasCallStack, MonadIO m, IsMessageDialog a)

=> a

dialog: a MessageDialog

-> m Widget

Returns: the dialog’s image

Deprecated: (Since version 3.12)Use Dialog for dialogs with images

Gets the dialog’s image.

Since: 2.14

getMessageArea

messageDialogGetMessageArea

Arguments

:: (HasCallStack, MonadIO m, IsMessageDialog a)

=> a

messageDialog: a MessageDialog

-> m Widget

Returns: A Box corresponding to the “message area” in the messageDialog.

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 dialogGetContentArea for the corresponding function in the parent Dialog.

Since: 2.22

setImage

messageDialogSetImage

Arguments

:: (HasCallStack, MonadIO m, IsMessageDialog a, IsWidget b)

=> a

dialog: a MessageDialog

-> b

image: the image

-> m ()

Deprecated: (Since version 3.12)Use Dialog to create dialogs with images

Sets the dialog’s image to image.

Since: 2.10

setMarkup

messageDialogSetMarkup

Arguments

:: (HasCallStack, MonadIO m, IsMessageDialog a)

=> a

messageDialog: a MessageDialog

-> Text

str: markup string (see [Pango markup format][PangoMarkupFormat])

-> m ()

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

Since: 2.4

Properties

buttons

No description available in the introspection data.

constructMessageDialogButtons :: IsMessageDialog o => ButtonsType -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “buttons” property. This is rarely needed directly, but it is used by new.

image

The image for this dialog.

Since: 2.10

constructMessageDialogImage :: (IsMessageDialog o, IsWidget a) => a -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “image” property. This is rarely needed directly, but it is used by new.

getMessageDialogImage :: (MonadIO m, IsMessageDialog o) => o -> m Widget

Get the value of the “image” property. When overloading is enabled, this is equivalent to

get messageDialog #image

setMessageDialogImage :: (MonadIO m, IsMessageDialog o, IsWidget a) => o -> a -> m ()

Set the value of the “image” property. When overloading is enabled, this is equivalent to

set messageDialog [ #image := value ]

messageArea

The Box that corresponds to the message area of this dialog. See messageDialogGetMessageArea for a detailed description of this area.

Since: 2.22

getMessageDialogMessageArea :: (MonadIO m, IsMessageDialog o) => o -> m Widget

Get the value of the “message-area” property. When overloading is enabled, this is equivalent to

get messageDialog #messageArea

messageType

The type of the message.

constructMessageDialogMessageType :: IsMessageDialog o => MessageType -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “message-type” property. This is rarely needed directly, but it is used by new.

getMessageDialogMessageType :: (MonadIO m, IsMessageDialog o) => o -> m MessageType

Get the value of the “message-type” property. When overloading is enabled, this is equivalent to

get messageDialog #messageType

setMessageDialogMessageType :: (MonadIO m, IsMessageDialog o) => o -> MessageType -> m ()

Set the value of the “message-type” property. When overloading is enabled, this is equivalent to

set messageDialog [ #messageType := value ]

secondaryText

The secondary text of the message dialog.

Since: 2.10

clearMessageDialogSecondaryText :: (MonadIO m, IsMessageDialog o) => o -> m ()

Set the value of the “secondary-text” property to Nothing. When overloading is enabled, this is equivalent to

clear #secondaryText

constructMessageDialogSecondaryText :: IsMessageDialog o => Text -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “secondary-text” property. This is rarely needed directly, but it is used by new.

getMessageDialogSecondaryText :: (MonadIO m, IsMessageDialog o) => o -> m (Maybe Text)

Get the value of the “secondary-text” property. When overloading is enabled, this is equivalent to

get messageDialog #secondaryText

setMessageDialogSecondaryText :: (MonadIO m, IsMessageDialog o) => o -> Text -> m ()

Set the value of the “secondary-text” property. When overloading is enabled, this is equivalent to

set messageDialog [ #secondaryText := value ]

secondaryUseMarkup

True if the secondary text of the dialog includes Pango markup. See parseMarkup.

Since: 2.10

constructMessageDialogSecondaryUseMarkup :: IsMessageDialog o => Bool -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “secondary-use-markup” property. This is rarely needed directly, but it is used by new.

getMessageDialogSecondaryUseMarkup :: (MonadIO m, IsMessageDialog o) => o -> m Bool

Get the value of the “secondary-use-markup” property. When overloading is enabled, this is equivalent to

get messageDialog #secondaryUseMarkup

setMessageDialogSecondaryUseMarkup :: (MonadIO m, IsMessageDialog o) => o -> Bool -> m ()

Set the value of the “secondary-use-markup” property. When overloading is enabled, this is equivalent to

set messageDialog [ #secondaryUseMarkup := value ]

text

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

Since: 2.10

clearMessageDialogText :: (MonadIO m, IsMessageDialog o) => o -> m ()

Set the value of the “text” property to Nothing. When overloading is enabled, this is equivalent to

clear #text

constructMessageDialogText :: IsMessageDialog o => Text -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “text” property. This is rarely needed directly, but it is used by new.

getMessageDialogText :: (MonadIO m, IsMessageDialog o) => o -> m (Maybe Text)

Get the value of the “text” property. When overloading is enabled, this is equivalent to

get messageDialog #text

setMessageDialogText :: (MonadIO m, IsMessageDialog o) => o -> Text -> m ()

Set the value of the “text” property. When overloading is enabled, this is equivalent to

set messageDialog [ #text := value ]

useMarkup

True if the primary text of the dialog includes Pango markup. See parseMarkup.

Since: 2.10

constructMessageDialogUseMarkup :: IsMessageDialog o => Bool -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “use-markup” property. This is rarely needed directly, but it is used by new.

getMessageDialogUseMarkup :: (MonadIO m, IsMessageDialog o) => o -> m Bool

Get the value of the “use-markup” property. When overloading is enabled, this is equivalent to

get messageDialog #useMarkup

setMessageDialogUseMarkup :: (MonadIO m, IsMessageDialog o) => o -> Bool -> m ()

Set the value of the “use-markup” property. When overloading is enabled, this is equivalent to

set messageDialog [ #useMarkup := value ]