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 signal@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).
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 GtkPrintOperation.
Return
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 method@Gtk.PrintOperation.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 signal@Gtk.PrintOperation::done signal when done.
Parameters
the action to start
Transient parent of the dialog