/*
* BIOSKeyboardHit - read the keyboard
*/
vi_key BIOSGetKeyboard( int *scan )
{
INPUT_RECORD ir;
DWORD rd, ss;
WORD vk;
BOOL has_alt, has_shift, has_ctrl, has_capsl;
map *ev, what;
vi_key key;
do {
ReadConsoleInput( InputHandle, &ir, 1, &rd );
} while( !eventWeWant( &ir ) );
if( ir.EventType == MOUSE_EVENT ) {
return( VI_KEY( MOUSEEVENT ) );
}
vk = ir.Event.KeyEvent.wVirtualKeyCode;
key = (unsigned char)ir.Event.KeyEvent.uChar.AsciiChar;
ss = ir.Event.KeyEvent.dwControlKeyState;
has_shift = ((ss & SHIFT_PRESSED) ? TRUE : FALSE);
has_ctrl = ((ss & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED)) ? TRUE : FALSE);
has_alt = ((ss & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED)) ? TRUE : FALSE);
has_capsl = ((ss & CAPSLOCK_ON) ? TRUE : FALSE);
what.vk = vk;
ev = bsearch( &what, events, sizeof( events ) / sizeof( events[0] ),
sizeof( what ), CompareEvents );
if( ev != NULL ) {
if( has_ctrl && has_alt ) {
// it handles AltGr + key
} else if( has_ctrl ) {
key = ev->ctrl;
} else if( has_alt ) {
key = ev->alt;
// Caps lock has efect to keys which generate character
// don't apply to extended keys as down, up, page down,
// page up, insert, end, delete, ....
} else if( has_shift ^ ( key && has_capsl ) ) {
if( key == 0 ) {
key = ev->shift;
}
} else {
if( key == 0 ) {
key = ev->reg;
}
}
}
if( key == 0 ) { // ignore unknown keys
key = VI_KEY( DUMMY );
}
if( scan != NULL ) {
*scan = 0;
}
return( key );
} /* BIOSGetKeyboard */
EVENT intern getanyevent( void )
{
INPUT_RECORD ir;
DWORD rd,ss;
WORD vk;
EVENT ascii;
BOOL has_alt, has_shift, has_ctrl;
map *ev,what;
EVENT evnt;
for( ;; ) {
PeekConsoleInput( InputHandle, &ir, 1, &rd );
if( rd == 0 ) return( EV_NO_EVENT );
ReadConsoleInput( InputHandle, &ir, 1, &rd );
if( eventWeWant( &ir ) ) {
if( ir.EventType != MOUSE_EVENT ) break;
evnt = mouseevent();
if( evnt > EV_NO_EVENT ) return( evnt );
}
}
vk = ir.Event.KeyEvent.wVirtualKeyCode;
ascii = ir.Event.KeyEvent.uChar.AsciiChar;
ss = ir.Event.KeyEvent.dwControlKeyState;
has_shift = ss & SHIFT_PRESSED;
has_ctrl = ss & (RIGHT_CTRL_PRESSED | LEFT_CTRL_PRESSED);
has_alt = ss & (RIGHT_ALT_PRESSED | LEFT_ALT_PRESSED);
setshiftstate( has_shift, has_ctrl, has_alt );
what.vk = vk;
ev = bsearch( &what, events, sizeof( events )/sizeof( map ),
sizeof( what ), CompareEvents );
if( ev != NULL ) {
if( has_shift ) {
ascii = ev->shift;
} else if( has_ctrl ) {
ascii = ev->ctrl;
} else if( has_alt ) {
ascii = ev->alt;
} else {
ascii = ev->reg;
}
} else if( ascii == 0 ) {
ascii = EV_NO_EVENT;
}
if( ascii > EV_NO_EVENT ) {
uihidemouse();
}
return( ascii );
} /* getanyevent */
/*
* BIOSKeyboardHit - test if a key is waiting
*/
bool BIOSKeyboardHit( void )
{
DWORD rd;
INPUT_RECORD ir;
bool rc;
for( ;; ) {
PeekConsoleInput( InputHandle, &ir, 1, &rd );
if( rd == 0 ) {
rc = FALSE;
break;
}
if( eventWeWant( &ir ) ) {
rc = TRUE;
break;
}
ReadConsoleInput( InputHandle, &ir, 1, &rd );
}
return( rc );
} /* BIOSKeyboardHit */
void intern waitforevent( void )
{
DWORD rd;
INPUT_RECORD ir;
while( 1 ) {
while( 1 ) {
PeekConsoleInput( InputHandle, &ir, 1, &rd );
if( rd > 0 ) {
if( eventWeWant( &ir ) ) {
return;
}
ReadConsoleInput( InputHandle, &ir, 1, &rd );
} else {
break;
}
}
WaitForSingleObject( InputHandle, -1 );
}
} /* waitforevent */
