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BINDEVENT Gotcha!
Message
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00823477
Message ID:
01221618
Vues:
26
>>In case you missed it in another thread here today, there is a Gotcha in using a BINDEVENT for an event where VFP passes parameters to. Take the MouseMove event for example. Edit the MouseMove, and you see a parameter statement:
>>
>>LPARAMETERS nButton, nShift, nXCoord, nYCoord
>>
>>So, when you BINDEVENT any event to which VFP passes parameters, the delegate method or procedure needs to lead with a parameter statement with the same number of parameters. So the MyMouseMove code in the BINDEVENT example below must have a parameter statement in order to avoid an error:
>>BINDEVENT(THIS, 'MouseMove', THISFORM, 'MyMouseMove')
>>BTW, this is documented in the VFP Help CHM file.
>
>How come this is a Gotcha if it's documented? :)

I think it is not documented <g> At least I didn't find it yesterday in the Help.
If it's not broken, fix it until it is.


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