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To answer the reply prior to this one, what do you mean by "do I have a file in my directory called 'LPT1'? Do you mean a file in my program or on my computer? My printer file on my computer is Lexmark....but it is conected via 'LPT1' port. Do I need to create a file in my program called 'LPT1'? If so what is the purpose?Originally posted by Shadow
....if any of that helps.Code:/* Program: Printer.c Purpose: Demonstrates how to use the printer in your programs. */ #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?\n "); scanf("%s",str); fp = fopen(str,"r"); if(!fp) { printf("File does not exist\n"); return -1; } while( fgets(buf,sizeof buf,fp) != NULL ) { printf("\nPrinting..\n"); fprintf(printer,"%s",buf); } fprintf(printer,"\f"); return 0; }
The sample code you just sent me is the same sample I started with. The problem with this is that what I'm trying to do is search my 'client.dat' file which holds strutures containing 'client code'. When it finds the client code, I want to print that structure out on paper. Hers is how I've modified it so far:
Some things are commented out for now because I was trying different options. Also, I didn't think I had any use for 'char str[256]' where as I'm searching for an 'int client_code'. I'm totally stumped.Code:/************************************************************/ char print_label (void) /* Task: Prints shipping information */ /************************************************************/ { FILE *printer; FILE *dta_file; char buf[BUFSIZ]; int user_inputted_client_code; clrscr(); printf("\t\t\tClient Inventory Management \n\n\n"); printf("\tPrint Client Label \n\n"); printf("Client Code: "); scanf("%d",&user_inputted_client_code); if((dta_file=fopen(FILENAME,"rb")) == NULL) { perror(FILENAME); return(1); } if((printer = fopen("LPT1","w")) == NULL) { perror("LPT1"); return (1); } while((fread(&another_client,sizeof(struct fclient),1,dta_file)) == 1) { if(user_inputted_client_code == another_client.client_code) { fgets(buf,sizeof buf,dta_file); while( fgets(buf,BUFSIZ,dta_file) != NULL ) { // fprintf(printer,"printclient2(&another_client)",buf); fprintf(printer,"buf"); fprintf(printer,"\f"); } //fprintf(printer,"buf"); //fprintf(printer,"\f"); } } if(!dta_file) { printf("File does not exist\n"); return -1; } fclose(dta_file); key_wait(); return 0; } /*HERE IS THE INTERNAL FUNCTION BEING CALLED*/ /************************************************************/ int printclient2 (struct fclient *client) /************************************************************/ { printf ("Client Code: %d\n\n", client->client_code); printf ("Client Name: %s\n", client->clientname); printf ("Street Address: %s\n", client->street_address); printf ("City: %s\n", client->city); printf ("Province or State: %s\n", client->pros); printf ("Country: %s\n", client->country); printf ("Postal or Zip Code: %s\n\n\n", client->postalorzip_code); return(1); }
All suggestions welcome, but I would prefer keeping the program the same without having to make drastic changes. I need to have this working by tommorrow night at the latest or it's my ass!
Thx.
