KarenLloyd
Programmer
Hi All
I have a VFP6 application EXE that seems to freeze / hang or perhaps lose focus after an ACTIVATE POPUP command.
This is an inconsistent problem. It doesn't happen all of the time or always at the same popup. The number of items in the popup lists can be less than 10 or as many as 50+
Popup lists are used for validation or assisting on full screens that have been written with @..SAY..GET and READ instructions (this was written in FOX!) AND also from smaller prompt windows displayed over a grid form with command buttons. The problem can occur in any type of screen.
The user will type a few characters, press enter and the validation process displays a popup of potential choices. Once the popup displays, the application fails to recognize any key strokes (arrow keys etc)
The last time this happened, I asked the user to click onto the VFP screen in case VFP had lost the focus. The cursor changed from an eggtimer to a double ended arrow, the popup cleared but the software stopped responding.
Every time this type of problem occurs, they have to "end task" the application. This has been an intermittent problem for a year and I must get it sorted out.
I have considered taking out the popups and using combo boxes but this would need a list of 10,000+ items in one of the routines.
I need to find out what is causing the problem, rather than start a messy workaround.
The system is currently on an XP computer, but I cannot reproduce the behaviour on my own XP or Win98 pc. The problem persisted even when the client's hardware was changed.
I don't think it is caused by antivirus software scanning the DBFs or interrupting some other way. But I'm not 100% sure. They are using AVG.
Has anyone seen this type of behaviour before or know anything that could cause it?
Thanks
Karen
PS Sorry about the lengthy thread - I am stuck on this one!
I have a VFP6 application EXE that seems to freeze / hang or perhaps lose focus after an ACTIVATE POPUP command.
This is an inconsistent problem. It doesn't happen all of the time or always at the same popup. The number of items in the popup lists can be less than 10 or as many as 50+
Popup lists are used for validation or assisting on full screens that have been written with @..SAY..GET and READ instructions (this was written in FOX!) AND also from smaller prompt windows displayed over a grid form with command buttons. The problem can occur in any type of screen.
The user will type a few characters, press enter and the validation process displays a popup of potential choices. Once the popup displays, the application fails to recognize any key strokes (arrow keys etc)
The last time this happened, I asked the user to click onto the VFP screen in case VFP had lost the focus. The cursor changed from an eggtimer to a double ended arrow, the popup cleared but the software stopped responding.
Every time this type of problem occurs, they have to "end task" the application. This has been an intermittent problem for a year and I must get it sorted out.
I have considered taking out the popups and using combo boxes but this would need a list of 10,000+ items in one of the routines.
I need to find out what is causing the problem, rather than start a messy workaround.
The system is currently on an XP computer, but I cannot reproduce the behaviour on my own XP or Win98 pc. The problem persisted even when the client's hardware was changed.
I don't think it is caused by antivirus software scanning the DBFs or interrupting some other way. But I'm not 100% sure. They are using AVG.
Has anyone seen this type of behaviour before or know anything that could cause it?
Thanks
Karen
PS Sorry about the lengthy thread - I am stuck on this one!
