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putch

Header File

conio.h

Category

Console I/O Routines

Prototype

int putch(int c);

Description

Outputs character to screen.

putch outputs the character c to the current text window. It is a text mode function performing direct video output to the console. putch does not translate linefeed characters (\n) into carriage-return/linefeed pairs.

The string is written either directly to screen memory or by way of a BIOS call, depending on the value of the global variable _directvideo.

Note: This function should not be used in Win32 GUI applications.
Return Value

On success, putch returns the character printed, c. On error, it returns EOF.

Example

Copy Code

    #include <stdio.h>
    #include <conio.h>
    int main(void)
    {
      char ch = 0;
      printf("Input a string:");
      while ((ch != '\r'))
      {
        ch = getch();
        putch(ch);
      }
      return 0;
    }

Portability

POSIX | Win32 | ANSI C | ANSI C++
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