How to print?

This is a discussion on How to print? within the C Programming forums, part of the General Programming Boards category; Can anyone help me figure out how to print out of my programs? I have a couple programs built in ...

  1. #1
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    Question How to print?

    Can anyone help me figure out how to print out of my programs? I have a couple programs built in c and I'd like to be able to print information from inside the programs onto paper. Can anyone tell me if this is possible? Where to get a tutorial on this? Or just tell me how the code would work?

  2. #2
    Comment your source code! Lynux-Penguin's Avatar
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    FILE *fp
    fp = fopen("LPT1","w");
    this opens the FILE stream to the printer in port lpt1

    -Luke
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  3. #3
    Comment your source code! Lynux-Penguin's Avatar
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    Example:
    Code:
    #include <stdio.h>
    #include <stdlib.h>
    
    int main()
    {
     FILE *printer;
     printer = fopen("LPT1","w");
     fprintf(printer,"TEXT HERE");
     return 0;
    }
    make sure to have the \f escape sequence or else the printer will not no when to stop accepting input and print

    this thread has been on this board around 9 times
    perhaps it should be moved to the FAQ (Hint hint, mods)

    http://www.cprogramming.com/cboard/s...5&pagenumber=1
    Asking the right question is sometimes more important than knowing the answer.
    Please read the FAQ
    C Reference Card (A MUST!)
    Pointers and Memory
    The Essentials
    CString lib

  4. #4
    Unleashed
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    1,765
    Another approach:
    Code:
    #include <stdio.h>
    #include <stdlib.h>
    
    #include <stdio.h>
    #include <stdlib.h>
    
    int main(void)
    {
    	 FILE *printer = fopen("LPT1","w");
    	 FILE *fp;
    	 char str[256];
    	 char buf[BUFSIZ];
    	 printf("File name? ");
    	 scanf("%s",str);
    	 fp = fopen(str,"r");
    	 if(!fp)
    	 {
    	 	printf("File does not exist\n");
      		return -1;
     	 }
     	 fgets(buf,sizeof buf,fp);
     	 while( fgets(buf,BUFSIZ,fp) != NULL ) 
    	 {
      	       	fprintf(printer,"%s",buf);
    	 }
    
     	 fprintf(printer,"\f");
     	 return 0;
    }
    - Found in a matter of minutes with the search feature.
    The world is waiting. I must leave you now.

  5. #5
    Comment your source code! Lynux-Penguin's Avatar
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    shadow, i found that also, and from you!

    thats why I posted the second code with *printer instead, I forgot it needed to be that
    Asking the right question is sometimes more important than knowing the answer.
    Please read the FAQ
    C Reference Card (A MUST!)
    Pointers and Memory
    The Essentials
    CString lib

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