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Synopsis:
    #include <io.h>
    int _os_handle( int handle );

Description:
    The _os_handle function takes a POSIX-style file handle specified by
    handle.  It returns the corresponding operating system level handle.

Returns:
    The _os_handle function returns the operating system handle that
    corresponds to the specified POSIX-style file handle.

Example:
    #include <stdio.h>
    #include <io.h>

    void main()
      {
        int handle;
        FILE *fp;

        fp = fopen( "file", "r" );
        if( fp != NULL ) {
          handle = _os_handle( fileno( fp ) );
          fclose( fp );
        }
      }

Classification:
    WATCOM

Systems:
    DOS, Windows, Win386, Win32, OS/2 1.x(all), OS/2-32, Netware

See Also:
    close, fdopen, _get_osfhandle, _hdopen, open, _open_osfhandle