getche.gml

开放源码的编译器open watcom 1.6.0版的源代码

.func getche
#include <conio.h>
int getche( void );
.ixfunc2 '&KbIo' &func
.funcend
.desc begin
The &func function obtains the next available keystroke from the console.
The function will wait until a keystroke is available.
That character is echoed on the screen at the position of the cursor
(use
.kw getch
when it is not desired to echo the keystroke).
.pp
The
.kw kbhit
function can be used to determine if a keystroke is available.
.desc end
.return begin
A value of
.mono EOF
is returned when an error is detected; otherwise,
the &func function returns the value of the keystroke (or character).
.pp
When the keystroke represents an extended function key (for example, a
function key, a cursor-movement key or the ALT key with a letter or a
digit),
.if '&machsys' eq 'QNX' .do begin
0xff
.do end
.el .do begin
zero
.do end
is returned and the next call to &func returns a value for the
extended function.
.return end
.see begin
.im seeiocon getche
.see end
.exmp begin
#include <stdio.h>
#include <conio.h>

void main()
  {
    int c;
.exmp break
    printf( "Press any key\n" );
    c = getche();
    printf( "You pressed %c(%d)\n", c, c );
  }
.exmp end
.class WATCOM
.system