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ExceptionError with VFP 5.0 and HP Printers
Message
From
19/04/1998 20:45:37
 
 
To
19/04/1998 18:45:35
General information
Forum:
Visual FoxPro
Category:
Troubleshooting
Miscellaneous
Thread ID:
00093255
Message ID:
00093281
Views:
32
>>The problem is:
>>
>>Facts:
>>
>>VFP 5.0a
>>Win 98
>>Printing to the HP6P Enhanced or later HP Printer driver (regardless of specific printer - the 6p enhanced was the first where the problem showed up.)
>>
>>Usually the 98 machine is mapped to the printer through Novell File & Print shareing Service - as opposed to the Microsoft service. This seems to agrivate the situation, but is not required for it to happen.
>>
>>Problem:
>>Once the system has printed, it will get an Exception error. The simplest reproducable example was a program that did this:
>>
>>type c:\autoexec.bat to print
>>select * from tablea, tableb where tablea.field = tableb.field
>>
>>Where the mapping field was an integer, and one of the tables had stars (****) in the field.
>>
>>Note: The problem often occured on other commands in different parts of the system, such as setting an Enabled=.T., a DODEFAUL() - didn't really matter. Once VFP printed to that printer, the damage was done, and it would soon crash.
>>
>>Again, this does not happen with any printer prior to the 6p.
>>
>>Any ideas?
>
>
>Yup. there are known problems with the HP drivers and several applications...not just VFP.

Just to confirm ... a few months ago, one of my customers moved an old application I had written in Clipper to a new computer (with an HP 6p attached), not only would the application not print, but it trashed the data. Backups were required.

Bob
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