How to print on printer using c language for Unix?

[surnj1]

Hi,

I am new to Unix Programming. I was printing in DOS using
following c syntex:

fprintf(stdprn,"Print this line to Printer"

The Standrad Printer device made this possible. What is Unix equvalent to DOS's "stdprn"?

I am using GNU's gcc compiler on SCO Open Server 5.0.x

Thanks for your help.

Bob

 

[dickiebird]

Don't think there is an equivalent - I may be corrected !
So - open a file for write only
FILE *fp;
fp=fopen(file_name,"w"
and then
fprintf(fp,"Print this line to Printer"
and then lp -dprinter_name file_name outside of the C prog.
HTH Dickie Bird (-)))

 

[iribach]

i will try the same way, using popen()
man is your frend.

 

[keenanbr]

#include <stdio.h>

main(int argc, char **argv)
{
FILE *fp;

fp = fopen(&quot;/dev/lp&quot;

fprintf(fp, &quot;this will go directly to the printer\n&quot;

fclose(fp);
}

# type lpstat -t to find which device the printer is on and
# change /dev/lp appropriatly