It's now possible to query Meta & Super modifier keys:
SDL ... Meta & Super supported
OSG ... only Meta supported (would be easy to fix in OSG)
GLUT ... no support, as usual :-}
These modifier keys are set in keyboard events
(/devices/status/keyboard/events/modifiers/{meta,super}) and
can also be queried independent of events via
/devices/status/keyboard/{meta,super}.
<binding>
<condition>
<property>/devices/status/keyboard/super</property>
</condition>
<command>exit</command>
</binding>
Because not all operating systems, all keyboards, and all
setups support these modifiers, they must *not* be used in
files committed to CVS. (That's why I didn't bother to add
<mod-meta>/<mod-super> XML tags.) But they can be used for
local key definitions, where they are safe from changes to
regular fgfs key bindings.
On Unices you can turn Windows/Menu keys into modifiers,
by putting something like this in your ~/.Xmodmap:
clear mod5
keycode 115 = Super_L
keycode 116 = Super_R
add mod5 = Super_L Super_R
These may be different key numbers on some keyboards (129 and 131
here). Use xev to get the number. I use the attached script at
the moment, to assign functions to Meta-v, Meta-s, Meta-`. I have
yet to migrate my other local key bindings to this new system.
m.
PS: support for "Hyper" is not planned. :-)
_setlistener("/devices/status/keyboard/event", func {
var event = cmdarg();
if (handle_key_event(event.getValues()))
event.getNode("key").setValue(0);
});
var handle_key_event = func(e) {
#debug.dump(e);
if (!e.pressed or !e.modifier.meta and !e.modifier.super)
return 0;
if (e.key == `s`) { # toggle shadows
var i = !getprop("/sim/rendering/shadows-ac");
setprop("/sim/rendering/shadows-ac", i);
setprop("/sim/rendering/shadows-to", i);
setprop("/sim/rendering/shadows-ai", i);
} elsif (e.key == `v`) { # save aircraft state
ac_state.save();
} elsif (e.key == `\``) { # set daytime midnight
fgcommand("timeofday", props.Node.new({ timeofday : "midnight"
}));
} else {
debug.dump(e);
return 0;
}
return 1;
}
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