File checking in lisp

[FazBear]

Hi All

 

I have a lisp the relies on a pmp file being accessable from the printer configuration file paths.

 

if a users printer configuration file paths are incorrect the lisp crashes. Is their a way to run an alert then exit if pmp file cannot be located?

 

i was thinking something like:

 

(if (pmp file cannot be located)

(progn

(alert "\nthe correct pmp file cannot be located please check your printer configuration file paths and try again"))

(exit)

);end progn

); end if

 

Any advise would be appreciated.

 

Cheers

[Lee Mac]

Hi All

 

I have a lisp the relies on a pmp file being accessable from the printer configuration file paths.

 

if a users printer configuration file paths are incorrect the lisp crashes. Is their a way to run an alert then exit if pmp file cannot be located?

 

i was thinking something like:

 

(if (pmp file cannot be located)

(progn

(alert "\nthe correct pmp file cannot be located please check your printer configuration file paths and try again"))

(exit)

);end progn

); end if

 

Any advise would be appreciated.

 

Cheers

 

If its in the ACAD Search Path, you could use "findfile" to try to locate it :wink:

[David Bethel]

McNeels DOSLIb is a ton better than ACAD for this type of testing. And it's free. -David

 

http://www.en.na.mcneel.com/doslib.htm

[CALCAD]

FazBear, you could try as Lee suggested :

 

(defun c:fpmp (/)
(if (not (findfile "c:\\file.pmp"))
 (alert "\n the correct pmp file cannot be located please check your printer configuration file paths and try again")
)
(princ)
)

or if you have Doslib as David suggested, this should work :

 

(defun c:fpmp (/)
(if (not (dos_find "file.pmp"))
 (alert "\n the correct pmp file cannot be located please check your printer configuration file paths and try again")
)
(princ)
)

This program is so simple, you don't need an EXIT.

 

The Doslib library contains a lot of functions for directory and file operations and other stuff. It might be worth looking at, if you haven't already.

 

See it at www.mcneel.com

 

Oh yeah, David already provided the link.

[FazBear]

Thank you

 

i had a play with the findfile which works perfectly

 

Thanks again!!

[Lee Mac]

No problem