MI-L MI Disabling the Close (X) button on the map window?

[Bob Regier]

Hi,
I have a complex MapBasic program that I inherited.  It runs fine except that if you click the (X) close button on the Map Window, the program responds either with "This program has performed an illegal operation and will be shutdown" (invalid page fault) or "System Error - Internal Error 31203."

My questions are:

• Does anyone know what might be causing this error? (probably not closing things off properly) and
• What happens in the MapBasic program when you click the (X) Close button on the Map Window?
• If I can't find the problem, is there a way of disabling the (X) close button in the MapBasic program?

Thanks,
Bob Regier
Township of Langley
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