First, MSVC 7 bombs when a value greater than 255 is passed to

First, MSVC 7 bombs when a value greater than 255 is passed to
Frederic Bouvier:
First, MSVC 7 bombs when a value greater than 255 is passed to
issomething(), so I copy k to a char (unsigned ) kc before calling
them.

Second, with my french keyboard, and I thing this is the same for
a great number of countries, some characters from the regular ASCII
set can only be get with ALt Gr that appears to be CTRL+ALT.

Especially, I can't select the second engine because '@' is
AltGr+'à' nor all because '~' is AltGr+'é' (and I have to hit space
after otherwise I can get õ or ã that are not used in french) and
FG try to cope with the modifiers.

So, currently, we have to mask out CTRL and ALT modifiers when they
are together. The current bingings don't allow 2 simultaneous to
be declared so it shouldn't break anything.