MapForums

Anonymous · #1 (**permalink**) 04-22-2004

does anybody help me to use the mappoint control in a VFP form.
When close the form I cannot close VFP an it appear the message cannot quit VFP

**Eric Frost** · #2 (**permalink**) 04-22-2004

Can you deinstantiate or destroy the MapPoint object during the Form Close event?

Eric

Anonymous · #3 (**permalink**) 04-23-2004

PMFJI,
we had a similar problem and found that if you instantiate the Mappoint object and don't use it , it sometimes doesn't release properly resulting in the "cannot quit" message.
Trevor

palin · #4 (**permalink**) 04-23-2004

Quote:

Originally Posted by paradigm

PMFJI,
we had a similar problem and found that if you instantiate the Mappoint object and don't use it , it sometimes doesn't release properly resulting in the "cannot quit" message.
Trevor

But I use the control; I close the map and I remove the object in the container...
... the result its the same "Cannot quit VFP"

**Eric Frost** · #5 (**permalink**) 04-23-2004

There is a demo on using MapPoint and Foxpro:
http://www.mp2kmag.com/a43--charlie.....mappoint.html
Perhaps there are some pointers in there?

Eric

Anonymous · #6 (**permalink**) 12-02-2004

Quote:

Originally Posted by palin

Quote:

Originally Posted by paradigm

PMFJI,
we had a similar problem and found that if you instantiate the Mappoint object and don't use it , it sometimes doesn't release properly resulting in the "cannot quit" message.
Trevor

But I use the control; I close the map and I remove the object in the container...
... the result its the same "Cannot quit VFP"

Did you ever see a solution for this? I get the same problem when I use the Mappoint ActiveX control (but not using automation, which is what the example by Fowler Software uses, so it does not apply).

Lew

Anonymous · #7 (**permalink**) 12-06-2004

We use MapPoint extensively in our VFP commercial applications and have found that the "cannot quit message" is usually related to object reference issues of one kind or another. We have also noted that in some cases you will need to issue "THIS.activemap.saved = .T." before the close of the map in order for it to release properly. You may also need to play with the VFP.AUTOYIELD parameter setting (depending on what you're doing).
Hope This Helps
Trevor

Anonymous · #8 (**permalink**) 12-06-2004

Try putting the command

ON SHUTDOWN QUIT

near the top of the program code

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Mappoint and VFP

Mappoint and VFP

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