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* fhandler_console.c (fhandler_console::read): Record the state of the SHIFT,

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CTRL and ALT keys at the time of the last keyboard input event.
(fhandler_console::ioctl): Handle requests to retrieve the keyboard modifiers
via the TIOCLINUX command.
* fhandler_tty.c (fhandler_tty_slave::read): Ditto.
* include/sys/termios.h (TIOCLINUX): New macro definition.
This commit is contained in:
Christopher Faylor
2003-09-27 02:36:50 +00:00
parent ecc28ff8db
commit 63726a5eb4
4 changed files with 54 additions and 2 deletions
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28
winsup/cygwin/fhandler_console.cc
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@ -294,6 +294,8 @@ fhandler_console::read (void *pv, size_t& buflen)
#define virtual_key_code (input_rec.Event.KeyEvent.wVirtualKeyCode)
#define control_key_state (input_rec.Event.KeyEvent.dwControlKeyState)
dev_state->nModifiers = 0;
#ifdef DEBUGGING
/* allow manual switching to/from raw mode via ctrl-alt-scrolllock */
if (input_rec.Event.KeyEvent.bKeyDown &&
@ -340,13 +342,25 @@ fhandler_console::read (void *pv, size_t& buflen)
&& input_rec.Event.KeyEvent.wVirtualScanCode == 0x38))
continue;
if (control_key_state & SHIFT_PRESSED)
dev_state->nModifiers |= 1;
if (control_key_state & RIGHT_ALT_PRESSED)
dev_state->nModifiers |= 2;
if (control_key_state & CTRL_PRESSED)
dev_state->nModifiers |= 4;
if (control_key_state & LEFT_ALT_PRESSED)
dev_state->nModifiers |= 8;
if (wch == 0 ||
/* arrow/function keys */
(input_rec.Event.KeyEvent.dwControlKeyState & ENHANCED_KEY))
{
toadd = get_nonascii_key (input_rec, tmp);
if (!toadd)
continue;
{
dev_state->nModifiers = 0;
continue;
}
nread = strlen (toadd);
}
else
@ -379,6 +393,7 @@ fhandler_console::read (void *pv, size_t& buflen)
tmp[1] = cyg_tolower (tmp[1]);
toadd = tmp;
nread++;
dev_state->nModifiers &= ~4;
}
}
#undef ich
@ -715,6 +730,17 @@ fhandler_console::ioctl (unsigned int cmd, void *buf)
case TIOCSWINSZ:
(void) bg_check (SIGTTOU);
return 0;
case TIOCLINUX:
if (* (int *) buf == 6)
{
* (int *) buf = dev_state->nModifiers;
return 0;
}
else
{
set_errno (EINVAL);
return -1;
}
}
return fhandler_base::ioctl (cmd, buf);