MapForums

Hello,
in my C# program, I start a MapPoint instance:
Now it's up to the user, when he wants to close MapPoint. The problem is, that after the user closes MapPoint, there is still a MapPoint.exe process running.
How can I avoid that?

Bye,

MD

You need to make sure that you don't have any valid references in your program to any MapPoint objects,

Eg. in C++ you'd call Release on a COM object to free the reference.
In VB6 you set the object to "Nothing".

In my experience, you have to do this before the user closes MapPoint, rather than after.

Yes when I'm developing, I usually end up with a collection of zombie MapPoints that have to be cleared out every so often.


Richard

__________________
Winwaed Software Technology LLC
http://www.winwaed.com
See http://www.mapping-tools.com for MapPoint Tools
See the Geoweb Guru for online mapping

Hello,
I use the following code:

But when the user now closes teh MapPoint application, there is still a MapPoint.exe running. How do I close it?

MD

another thing, that doesn't work:

1. My program starts a MapPoint instance.
2. The user closes the MapPoint instance from step 1.
3. My program closes the MapPointApplication form step 1 with "mapPointApp.Quit();"

But now there's still a process MapPointe.exe running.

What am I doing wrong?

Bye,

MD

Are you releasing the COM pointers?
I haven't tried COM and C# so I'm not sure how it handles them. VB is clever enough to do it if you assign "Nothing".
For C++ you have to hold its hand and call "Release()" before setting the pointer to NULL.

Also, have you tried closing MapPoint in your program without the user being involved. This should work unless you have COM pointers dangling.

Or by setting the flags to tell MapPoint that the user is in charge of quiting. This works for me (GridImp). When my program tidies up, it releases ALL MapPoint COM objects. My program closes, and MapPoint is left running for the user. It then closes properly when they want it to close.

Richard

__________________
Winwaed Software Technology LLC
http://www.winwaed.com
See http://www.mapping-tools.com for MapPoint Tools
See the Geoweb Guru for online mapping