Creates a new Gtk::PrintOperation.

Returns the type id (GType) registered in GLib type system.

Returns true if this reference is the same as other. Invokes same?.

Sets whether gtk_print_operation_run() may return before the print operation is completed.

Note that some platforms may not allow asynchronous operation.

Cancels a running print operation.

This function may be called from a [signal@Gtk.PrintOperation::begin-print], Gtk::PrintOperation::#paginate or [signal@Gtk.PrintOperation::draw-page] signal handler to stop the currently running print operation.

Sets the current page.

If this is called before Gtk::PrintOperation#run, the user will be able to select to print only the current page.

Note that this only makes sense for pre-paginated documents.

Sets the label for the tab holding custom widgets.

Returns the default page setup.

Makes default_page_setup the default page setup for op.

This page setup will be used by Gtk::PrintOperation#run, but it can be overridden on a per-page basis by connecting to the [signal@Gtk.PrintOperation::request-page-setup] signal.

Signal that drawing of particular page is complete.

It is called after completion of page drawing (e.g. drawing in another thread). If Gtk::PrintOperation#defer_drawing= was called before, then this function has to be called by application. Otherwise it is called by GTK itself.

Gets whether page setup selection combos are embedded

Embed page size combo box and orientation combo box into page setup page.

Selected page setup is stored as default page setup in Gtk::PrintOperation.

Call this when the result of a print operation is %GTK_PRINT_OPERATION_RESULT_ERROR.

It can be called either after Gtk::PrintOperation#run returns, or in the Gtk::PrintOperation::#done signal handler.

The returned GError will contain more details on what went wrong.

Sets up the Gtk::PrintOperation to generate a file instead of showing the print dialog.

The intended use of this function is for implementing “Export to PDF” actions. Currently, PDF is the only supported format.

“Print to PDF” support is independent of this and is done by letting the user pick the “Print to PDF” item from the list of printers in the print dialog.

Gets whether there is a selection.

Sets whether there is a selection to print.

Application has to set number of pages to which the selection will draw by Gtk::PrintOperation#n_pages= in a handler for the [signal@Gtk.PrintOperation::begin-print] signal.

See Object#hash(hasher)

A convenience function to find out if the print operation is finished.

a print operation is finished if its status is either %GTK_PRINT_STATUS_FINISHED or %GTK_PRINT_STATUS_FINISHED_ABORTED.

Note: when you enable print status tracking the print operation can be in a non-finished state even after done has been called, as the operation status then tracks the print job status on the printer.

Sets the name of the print job.

The name is used to identify the job (e.g. in monitoring applications like eggcups).

If you don’t set a job name, GTK picks a default one by numbering successive print jobs.

Sets the number of pages in the document.

This must be set to a positive number before the rendering starts. It may be set in a [signal@Gtk.PrintOperation::begin-print] signal handler.

Note that the page numbers passed to the [signal@Gtk.PrintOperation::request-page-setup] and [signal@Gtk.PrintOperation::draw-page] signals are 0-based, i.e. if the user chooses to print all pages, the last ::draw-page signal will be for page n_pages - 1.

Returns the number of pages that will be printed.

Note that this value is set during print preparation phase (%GTK_PRINT_STATUS_PREPARING), so this function should never be called before the data generation phase (%GTK_PRINT_STATUS_GENERATING_DATA). You can connect to the [signal@Gtk.PrintOperation::status-changed] signal and call gtk_print_operation_get_n_pages_to_print() when print status is %GTK_PRINT_STATUS_GENERATING_DATA.

This is typically used to track the progress of print operation.

Returns the current print settings.

Note that the return value is nil until either Gtk::PrintOperation#print_settings= or Gtk::PrintOperation#run have been called.

Sets the print settings for op.

This is typically used to re-establish print settings from a previous print operation, see Gtk::PrintOperation#run.

Runs the print operation.

Normally that this function does not return until the rendering of all pages is complete. You can connect to the [signal@Gtk.PrintOperation::status-changed] signal on op to obtain some information about the progress of the print operation.

Furthermore, it may use a recursive mainloop to show the print dialog.

If you set the [Gtk.PrintOperation:allow-async] property, the operation will run asynchronously if this is supported on the platform. The Gtk::PrintOperation::#done signal will be emitted with the result of the operation when the it is done (i.e. when the dialog is canceled, or when the print succeeds or fails).

WARNING ⚠️ The following code is in c ⚠️

if (settings != NULL)
  gtk_print_operation_set_print_settings (print, settings);

if (page_setup != NULL)
  gtk_print_operation_set_default_page_setup (print, page_setup);

g_signal_connect (print, "begin-print",
                  G_CALLBACK (begin_print), &data);
g_signal_connect (print, "draw-page",
                  G_CALLBACK (draw_page), &data);

res = gtk_print_operation_run (print,
                               GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
                               parent,
                               &error);

if (res == GTK_PRINT_OPERATION_RESULT_ERROR)
 {
   error_dialog = gtk_message_dialog_new (GTK_WINDOW (parent),
  			                     GTK_DIALOG_DESTROY_WITH_PARENT,
					     GTK_MESSAGE_ERROR,
					     GTK_BUTTONS_CLOSE,
					     "Error printing file:\n%s",
					     error->message);
   g_signal_connect (error_dialog, "response",
                     G_CALLBACK (gtk_window_destroy), NULL);
   gtk_widget_show (error_dialog);
   g_error_free (error);
 }
else if (res == GTK_PRINT_OPERATION_RESULT_APPLY)
 {
   if (settings != NULL)
g_object_unref (settings);
   settings = g_object_ref (gtk_print_operation_get_print_settings (print));
 }

Note that gtk_print_operation_run() can only be called once on a given Gtk::PrintOperation.

Sets up the Gtk::PrintOperation to wait for calling of [method@Gtk.PrintOperation.draw_page_finish from application.

This can be used for drawing page in another thread.

This function must be called in the callback of the [signal@Gtk.PrintOperation::draw-page] signal.

If show_progress is true, the print operation will show a progress dialog during the print operation.

Returns the status of the print operation.

Also see Gtk::PrintOperation#status_string.

Returns a string representation of the status of the print operation.

The string is translated and suitable for displaying the print status e.g. in a Gtk::Statusbar.

Use Gtk::PrintOperation#status to obtain a status value that is suitable for programmatic use.

Gets whether the application supports print of selection

Sets whether selection is supported by Gtk::PrintOperation.

If track_status is true, the print operation will try to continue report on the status of the print job in the printer queues and printer.

This can allow your application to show things like “out of paper” issues, and when the print job actually reaches the printer.

This function is often implemented using some form of polling, so it should not be enabled unless needed.

Sets up the transformation for the cairo context obtained from Gtk::PrintContext in such a way that distances are measured in units of unit.

If full_page is true, the transformation for the cairo context obtained from Gtk::PrintContext puts the origin at the top left corner of the page.

This may not be the top left corner of the sheet, depending on page orientation and the number of pages per sheet). Otherwise, the origin is at the top left corner of the imageable area (i.e. inside the margins).