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Where in a system, does vb get the list of installed printers
Posted on 2006-07-21
Hi
I'm working on an application which needs to obtain the list of printers installed on the machine. I am working with my software and an external software program. I need to know where this external program gets it's list of printers from, does anyone know where in the system software usually gets this info from and are there several different registery locations
Any ideas appreciated.
I'm working on an application which needs to obtain the list of printers installed on the machine. I am working with my software and an external software program. I need to know where this external program gets it's list of printers from, does anyone know where in the system software usually gets this info from and are there several different registery locations
Any ideas appreciated.
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4 Comments
Hi eneate,
VB has a Printers collection which enumerates all the available printers installed on a machine. This uses an API call internally to generate the list. All applications should use the same API call, either natively or wrapped into a collection as vb does. After all, that is what it is there for.
Tim Cottee
VB has a Printers collection which enumerates all the available printers installed on a machine. This uses an API call internally to generate the list. All applications should use the same API call, either natively or wrapped into a collection as vb does. After all, that is what it is there for.
Tim Cottee
Hi Tim
Thanks for that the problem is that in the one app it is sometimes listing the printers with capital letters and others without, and this seams to effect how the software then sees the call and sometimes a printer is output to and other times not. Any idea why this would be? I was wondering if there were diffferent registry files which the software might call the list of printers from.
eneate
Thanks for that the problem is that in the one app it is sometimes listing the printers with capital letters and others without, and this seams to effect how the software then sees the call and sometimes a printer is output to and other times not. Any idea why this would be? I was wondering if there were diffferent registry files which the software might call the list of printers from.
eneate
Key for all local printers:
HKEY_LOCAL_Machine\System\
Network Printer(s) and User-modes of local printers:
HKEY_CURRENT_USER\Printers
and
HKEY_CURRENT_USER\Printers
I would point out, if the original problem, has only to do with uppercase, vs lowercase....
Why not use either $UCASE() or LCASE$() on both arguments in the comparision to force them to the same case?
That would seem easier than digging through the registry.
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