获取窗口刷新（等）而不调用Application.ProcessMessages？

I've got a legacy app here that has a few 'time-consuming' loops that get fired off as a result of various user interaction. The time-consuming code periodically updates something on the screen with progress information (typically a label) and then, seemingly to persuade the visual refresh to happen there-and-then, the code calls Application.ProcessMessages (argh!).I've got a legacy app here that has a few 'time