Possible conflict with legacy Clipper app 1

[Dagel]

Please forgive my ignorance–I know absolutely nothing about Clipper. Here's my predicament. We've just released an application which was designed using FileMaker Pro. The program seems to work fine on all of our client's PCs with the exception of those running a DOS app developed in Clipper called RentRoll. Our app is hanging and when one user had to force quit, she wasn't able to get back into RentRoll and had to do a reinstall.

I've heard that DOS-based apps can be a bit finicky on Windows 2000 but I haven't a clue as to where to start troubleshooting.

Any help or suggestions would be greatly appreciated!

 

[GriffMG]

With a legacy Clipper app on Windows 2K or XP the only problem I'm aware of is to do with the app waiting for input.

Unless the code is modified slightly, the clipper app can be VERY demanding on processor time while sitting on a data entry box, or on a browse window.

This can be bad enough to make you system look like it has hung - when in fact it's just very busy (scanning the keyboard).

The test is to run the app, get to a dataentry box, then use the Windows Task Manager to check the performance - I'm doing it on my machine here and that app is taking up 52% of my processors capacity - compared to less than 2% without it running. This is on a 3.2GHz machien with 1GB of RAM!

Regards

Griff
Keep [Smile]ing

 

[Dagel]

That sounds like it must be it. Thanks so much for taking the time to help me!

 

[GriffMG]

Do you have the source code?


Regards

Griff
Keep [Smile]ing

 

[BeckerThomas]

Hallo,
I have also written an Clipper App for my Company.
Since 4 weeks we use Windows2000 and we have the
same problemes with the performance.
What can I do to fix thes probelem in me Sourcecode.
I use the INKEYTRAP(0) function to wait for the next
keystroke.
Could you please help me.
Thanks
Thomas

 

[GriffMG]

Hi Thomas,

I think the answer is on this thread:

http://www.tek-tips.com/viewthread.cfm?SQID=191093&SPID=288&newpid=288&page=1

Regards

Griff
Keep [Smile]ing

 

[BeckerThomas]

Thanks for the great information!
I take the DosIdle.obj and it works great!
Many thanks,
Thomas

 

[Michael42]

FYI,

I could be wrong but I think Jon Kilburn wrote RentRoll.





Thanks,

Michael42