i need to know how to send output to printer using c language
need codes for hardcopy output using c language
i need help?

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Did you search the forums on here for examples? Here is a link I found on DIC.

the code might look something like this:
FILE* fp = fopen("LPT1:","w");
fprintf(fp,"\nHello World\n");
fclose(fp);

Try going along those lines and see what you come up with. BTW I got this in like 5 minutes of googling.

This post has been edited by badjava: 8 Jan, 2009 - 12:14 AM

I did that same exact thing in my store code snippet, except I ran it on Linux.

I think the biggest problem was you need to issue both \n & \r for carriage return on the printer. Otherwise the text output on the printer is all off alignment.

I like that snippet. In my C++ class we didn't come across that FILE function, is that C only? It looks like it cleaned up the process of opening the printer as a file nicely if I understand what I see going on there.

The code I found has a LPT1: W and your code has lpt1 followed by a wb+, what are those for?

Taken from http://www.cplusplus.com/reference/clibrar...tdio/fopen.html

Parameters

filename
C string containing the name of the file to be opened. This paramenter must follow the file name specifications of the running environment and can include a path if the system supports it.
mode
C string containing a file access modes. It can be:
"r" Open a file for reading. The file must exist.
"w" Create an empty file for writing. If a file with the same name already exists its content is erased and the file is treated as a new empty file.
"a" Append to a file. Writing operations append data at the end of the file. The file is created if it does not exist.
"r+" Open a file for update both reading and writing. The file must exist.
"w+" Create an empty file for both reading and writing. If a file with the same name already exists its content is erased and the file is treated as a new empty file.
"a+" Open a file for reading and appending. All writing operations are performed at the end of the file, protecting the previous content to be overwritten. You can reposition (fseek, rewind) the internal pointer to anywhere in the file for reading, but writing operations will move it back to the end of file. The file is created if it does not exist.

With the mode specifiers above the file is open as a text file. In order to open a file as a binary file, a "b" character has to be included in the mode string. This additional "b" character can either be appended at the end of the string (thus making the following compound modes: "rb", "wb", "ab", "r+b", "w+b", "a+b") or be inserted between the letter and the "+" sign for the mixed modes ("rb+", "wb+", "ab+").


While it isn't C only, C++ just provides a lot more convenient methods for opening file pointers.

Indeed, and ty for the info