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Printing Error, New App, Crashes App
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17/01/2001 15:54:43
 
 
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Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Titre:
Printing Error, New App, Crashes App
Divers
Thread ID:
00464893
Message ID:
00464893
Vues:
56
Hi Y'all,

I read through the many messages related to printing probs under VFP (I am at SP4) but still could not solve this one. New app for client going from a 2.6 app. Am issuing:

REPORT FORM (lcReportName) TO PRINTER PROMPT NOCONSOLE

Environment:
Win 95 and Win98SE PC's with 128 mb ram, lots of hard disk; two different PC's as two users testing new app

What happens:
1) prints occasionally but usually not
2) sometimes nothing prints
3) sometimes user gets Windows error "Pure Virtual Function Call" in HPBFFB1.drv (the HP 4050T driver) and it crashes the app

What I have tried:
1) Updated HP 4050 driver to latest HP driver
2) Tried to find a MSFT driver for above (as suggested by others in threads here) but MSFT just points to the printer manufactorers sites; the 98SE machine shows a driver in its built in list but cannot tell if HP or MSFT
3) Tried HP 5 driver
4) Tried HP 4 driver and seems better
5) Tried nuking out the Exp, Tag and Tag2 fields from record 1 of the report as suggested here (no help)
6) Tried printing after making sure the desired printer was the default in case it was some problem with it not being that (as users were switching printers from the printer dialog usually from their default)

What I have searched for:
1) "Pure Virtual Function Call" error; nothing on MSFT or here
2) looked through lots of "printing error" messages but nothing similar to mine
3) Searched for this error on HP to no avail
4) Talked to HP support but got some guy who knew way less than me it seemed

Questions:
1) Is the "PROMPT" clause reliable for bringing up the printers dialog? The users want it because for this report, it needs special paper and they want to set the tray to manual feed
2) If this is not reliable, do I have to programmatically set up the report

Seems like it is a VFP error as opposed to a printer driver error since other apps (Word 97, Excel, Groupwise) all use the driver without probs.

Thanks for the help,

Albert
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