Hi Bob,

MIPro's event handling system is not documented in any detail as far as I know. So I guess some changes have been made to it between 6.5 and 8.0, yielding the differencies you experience.

I still frequently run into inter-mbx problems when both utilize event handlers, so it's really not a very stable system. And turning handlers and event processing doesn't always help.

Unfortunately I don't think there are any remedies for such problems, just work-arounds and experimentations in the dark.

It would be nice to have a thorough documentation on the MIPro/MB event handling system. But I guess MIPro.COM isn't up for major improvements while MIPro.NET is in the works.

Sorry I can't be of any help, just sympathetic. :-)

Best regards / Med venlig hilsen
Lars Nielsen
GisPro



bob young wrote:

Hi List

With regard to my posting about an hour ago, I can now report that the
code that crashes in MapInfo 6.5 works in Version 8.0!

Just as a reminder even in 6.5, it only crashes using Find to set
centre. Zoom, Pan and Change View all work ok.

However Version 8.0 is not without its own "features". In 6.5 the
working methods just redraw the map. In version 8.0 I need a print(in
WinChangedHandler) to the message window to get the map to appear! If I
do not add a print ( just print "." is enough ) then I need to do a
Window redraw.
So why does MapInfo 6.5 crash on Find, and yet 8.0 ok?

and

Why does version 8.0 need a print statement, whereas 6.5 does not?

Trying to cater for these differences between versions of MapInfo is
really frustrating!

Regards


Bob
@www.MapsByDesign.co.uk



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