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Cant use Msgbox with running GPS

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  #1  
Old June 25th, 2009, 02:53 AM
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Question Cant use Msgbox with running GPS
Hi

I made app which run GPS and receive coordinates. My problem is i cant use msgboxes in this app because when Mscomm port is open all app freeze when i show Msgbox and need to kill over task manager because i cant even push ok button in the Msgbox. Maybe problem in the Mscomm Sub? Because this loop to frequently (over 1000 times in sec).
Following metod works but maybe this is stupid solution and someone know better one?
MSComm1.PortOpen = False
MsgBox "Some information"
MSComm1.PortOpen = True
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Old June 25th, 2009, 04:01 AM
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You have a problem in your mscomm coding somewhere.
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Old June 25th, 2009, 10:16 AM
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Old June 25th, 2009, 01:17 PM
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Why do you have a loop?

You should be handling the onComm event to process data.

It sounds like your loop is deadlocking the UI; you're not allowing windows messages to be processed.

If you must loop, consider using a Thread.Sleep() followed by a call to Application.DoEvents to allow the message queue to be processed.

Be aware that you could cause a re-entrant situation in your event handler by doing so.
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