run

Runs the print operation, by first letting the user modify print settings in the print dialog, and then print the document.

Normally that this function does not return until the rendering of all pages is complete. You can connect to the status_changed signal on this 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 call set_allow_async or set the allow_async property the operation will run asynchronously if this is supported on the platform. The 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).

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_widget_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 run can only be called once on a given PrintOperation.

Parameters:

this	a PrintOperation
action	the action to start
parent	Transient parent of the dialog

Returns:

the result of the print operation. A return value of gtk_print_operation_result_apply indicates that the printing was completed successfully. In this case, it is a good idea to obtain the used print settings with get_print_settings and store them for reuse with the next print operation. A value of gtk_print_operation_result_in_progress means the operation is running asynchronously, and will emit the done signal when done.