aj wrote:
> can these problems be demonstrated/or not in the
/examples/exkeys.exe ?
I just tried exkeys.exe (only under Windows 2000) and at first, the
problem does not appear. However, on closer inspection of the code,
the bit where it tests the key_shifts variable is immediately preceded
by a ureadkey(NULL); I tried adding readkey(NULL) to my example
program, and although it now stops and waits for a regular key
(letter, number, etc) to be pressed before reading key_shifts, when I
press a regular key, the key_shifts variable is updated with the
correct state of the shift-keys. From this, I conclude that the
windows version only updates key_shifts when a regular key is pressed,
but the DOS version keeps key_shifts in sync with the state of the
keyboard. If exkeys.exe had a portion where it just displayed the
key_shifts variable without waiting for readkey(), then the problem
will be demonstrated.
A manifestation of the problem where ESC does not work when the
CTRL/ALT keys are 'stuck' in exkeys.exe is where I cannot press ESC to
continue unless I press some other key first.
Also, in exkeys, when I press ALT-GR, in the table of keys on the
right of the screen, it says I've pressed both ALT-GR and CTRL when
I've not pressed CTRL. If CTRL is held down, the values for both
ALT-GR and CTRL are correct. However, if I hold down RCONTROL when I'm
holding down ALT-GR, then the indicator for CTRL becomes un-set,
although if I'm holding down all 3 keys at once, the indicators are at
their correct values. None of this happens with the regular ALT key.
I have a UK keyboard. According to the Windows Input-locales section
of the regional options applet, the input-language is "English (United
Kingdom)", and the Keyboard layout / IME is "United Kingdom".
BTW. I added the following lines inside the main loop of my test program
if(keyboard_needs_poll())
{
poll_keyboard();
}
and the results are still the same - even if I get rid of the if and
just call poll_keyboard()
AE.
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