How to make safe API Timers in VBA?

Question

I read in various places that API timers are risky in VBA, that if you edit a cell while the timer is running it will crash Excel.

This code from http://optionexplic

Answer 1

I have also been faced with the fact that Excel crashes while entering a value and found this contribution. Great! My problem was solved as soon I added this line:

On Error Resume Next 

to "TimerProc".