Call this when the result of a print operation is %GTK_PRINT_OPERATION_RESULT_ERROR.
It can be called either after [method@Gtk.PrintOperation.run] returns, or in the [signal@Gtk.PrintOperation::done] signal handler.
The returned GError will contain more details on what went wrong.
GException on failure.
See Implementation
Call this when the result of a print operation is %GTK_PRINT_OPERATION_RESULT_ERROR.
It can be called either after [method@Gtk.PrintOperation.run] returns, or in the [signal@Gtk.PrintOperation::done] signal handler.
The returned GError will contain more details on what went wrong.