_WCRTLINK int kbhit( void )
{
DWORD n;
HANDLE h;
INPUT_RECORD r;
#ifdef DEFAULT_WINDOWING
if( _WindowsKbhit != 0 ) {
LPWDATA res;
res = _WindowsIsWindowedHandle( (int) STDIN_FILENO );
return( _WindowsKbhit( res ) );
}
#endif
_AccessFileH( STDIN_FILENO );
h = __NTConsoleInput();
for(;;) {
PeekConsoleInput( h, &r, 1, &n );
if( n == 0 ) break;
if( __NTRealKey( &r ) ) break;
// flush out mouse, window, and key up events
ReadConsoleInput( h, &r, 1, &n );
}
// n != 0 if there is a key waiting
_ReleaseFileH( STDIN_FILENO );
return( n != 0 );
}
_WCRTLINK char *cgets( char *buff )
{
char *p;
char len;
DWORD n;
HANDLE h;
INPUT_RECORD r;
#ifdef DEFAULT_WINDOWING
if( _WindowsStdin != 0 ) { // Default windowing...
__qread( STDIN_FILENO, buff + 2, *buff - 1 );
p = buff + 2;
len = *buff;
for(;;) {
if( len <= 1 ) break;
if( *p == '\r' || *p == '\0' ) break;
++p;
--len;
}
*p = '\0';
buff[1] = p - buff - 2;
return( buff + 2 );
}
#endif
_AccessFileH( STDIN_FILENO );
h = __NTConsoleInput(); // obtain a console input handle
for( p = buff + 2, len = *buff; ; ) {
ReadConsoleInput( h, &r, 1, &n );
if( __NTRealKey( &r ) ) { // Only interested in real keys
if( r.Event.KeyEvent.uChar.AsciiChar == CRLF ) {
*p = '\0';
break;
}
for( ; r.Event.KeyEvent.wRepeatCount > 0;
--r.Event.KeyEvent.wRepeatCount ) {
// Deal with backspace first...
if( r.Event.KeyEvent.uChar.AsciiChar == BACKSPACE ) {
if( p > buff + 2 ) {
putch( BACKSPACE );
putch( SPACE );
putch( BACKSPACE );
--p;
++len;
}
} else if( len > 1 ) { // Other real chars...
*p = r.Event.KeyEvent.uChar.AsciiChar;
putch( r.Event.KeyEvent.uChar.AsciiChar );
++p;
--len;
} // Otherwise: len <= 1, can't type more.
}
}
}
_ReleaseFileH( STDIN_FILENO );
buff[1] = p - buff - 2;
return( buff + 2 );
}
static int do_getch( HANDLE console_in )
{
INPUT_RECORD ir;
DWORD n;
static unsigned repeat;
static int c;
static int e;
static int state = KS_EMPTY;
switch( state ) {
case KS_HANDLE_FIRST_CALL:
--repeat;
if( c != 0 ) {
if( repeat == 0 ) {
state = KS_EMPTY;
}
} else {
state = KS_HANDLE_SECOND_CALL;
}
return( c );
case KS_HANDLE_SECOND_CALL:
if( repeat == 0 ) {
state = KS_EMPTY;
} else {
state = KS_HANDLE_FIRST_CALL;
}
return( e );
}
for( ;; ) {
if( ! ReadConsoleInput( console_in, &ir, 1, &n ) )
break;
if( ! __NTRealKey( &ir ) )
continue;
repeat = ir.Event.KeyEvent.wRepeatCount - 1;
c = (unsigned char)ir.Event.KeyEvent.uChar.AsciiChar;
if( (ir.Event.KeyEvent.dwControlKeyState & ENHANCED_KEY) != 0 || c == 0 ) {
c = 0;
e = ir.Event.KeyEvent.wVirtualScanCode;
state = KS_HANDLE_SECOND_CALL;
} else {
if( repeat != 0 ) {
state = KS_HANDLE_FIRST_CALL;
}
}
return( c );
}
return( EOF );
}