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To
16/03/2004 08:28:34
General information
Forum:
Visual FoxPro
Category:
ActiveX controls in VFP
Miscellaneous
Thread ID:
00885264
Message ID:
00886743
Views:
19
Others have said I am NULL witted - what does that mean?:)

>I dunno, Terry, but I have always wondered how it was that form.Release could commit suicide on the form. Maybe it simply sets the object reference to NULL?????
>
>
> >(VFP 8)
>>I have a queryunload event. When the form's name is reassigned to a character string:
>>myForm="ABC"
>>the test, TYPE('myForm'), returns a "C"
>>However, when the queryunload requests "myForm.release", the test returns the reference as an object. Even if I delay the test for a few seconds.
>>
>>Is myForm.Release explicit?:)
>>
>>I got to look at some VFP 6 code - maybe I have changed (or not followed:) my cwn coding standards.
>>
>>Is your VFP 8 sensitive to "energy" saver sleepy drives. It seems VFP 8 has issues with a drive waiting wake-up.
>>
>>>Terry,
>>>Anything that was an object remains an object until it is re-assigned explicitly to some other type OR RELEASEd.
>>>It can even be NULL in value but still be typed as an object.
>>>
>>>cheers
>>>
>>>
>>>>After responding - I was testing some work and this issue again re-appeared.
>>>>
>>>>Regarding forms and TYPE, the quuestion may be: How long will the form be considered an object after a release or queryinload?
>>>>
>>>>A micro-second - a few seconds - a minute ...?
>>>>
>>>>Even though I had X-Clicked and closed a form (maybe I did not explicictly do a release -), TYPE and VARTYPE both indicated the closed form was still an Object.
>>>>
>>>>My work around for to assign the form name a string (myForm="ABC"), to assure a character type. It worked. A few months back I think an explicit release of the form (in queryunload) worked.
>>>>
>>>>Maybe I need to explicitly release the form in the queryunload event. SThe struggle continues!
>>>>
>>>>
>>>>
>>>>
>>>>>Hello Terry.
>>>>>
>>>>>There was the thread from this message #879301. I think the issue was with vartype when the type was vetted the data had to be checked for null. It failed for me in my particular application.
>>>>>
>>>>>I looked at the thread. Interesting < s >. As I said, I have not experienced this problem. But now I will keep my eyes open and be on the lookout for it. I'll report back here if and when and happens to me < s >.
Imagination is more important than knowledge
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