Add SmartPad support

[TheLastMillennial]

Added new option to Key Bindings under the General Settings to select 'SmartPad'. This will allow a user to connect their calculator (running the SmartPad app) to their computer, and control the CEmu Keypad with it.

Testing needed on Windows:
Pressing a key that contains the combination Alt+Ctrl+Win+Shift on Windows 10 will launch the Office application (or a webpage asking you to download Office). I have already disabled this via a Registry tweak so I cannot test. I need to be sure this nuisance won't appear on other's machines.

[jacobly0]

Works on linux (with xkb_options srvrkeys:none).

[adriweb]

So hm, on macOS, some keys don't work, and most keys that work don't get released (in fact, only Enter seems to behave fine)

Keys that don't work: 2nd, mode, del, arrows, alpha, Xtn, stats, résol, ,, (, )
actually nevermind it's rather random and most of the time it doesn't work as expected.

[TheLastMillennial]

[enter] is the only key that TI implemented sensibly into Smartpad. By default, [enter] on the calculator simply maps to [enter] on a keyboard. That's probably why it works reliably.

The rest of the keys utilize some combination of [meta] and the [ctrl], [alt], or [shift] keys.

Maybe the issue lies with global keyboard shortcuts? I read you can turn them off on Mac by doing:

1. Open System Preferences
2. Click Keyboard
3. Click Shortcuts pill (third one from the left)
4. Deselect all checked shortcuts

[adriweb]

Eh well, it's not nice to have the user change their settings, so I won't do that especially because I use some :P
Anyway SV handles it just fine so at least we know there's a way.

[TheLastMillennial]

I'm not sure what SV is?
So, is this a problem that still needs to be addressed?

[adriweb]

SmartView CE, I mean.

[TheLastMillennial]

This may not be the best solution, but I found a way to disable all shortcuts: https://stackoverflow.com/questions/5311459/disable-keyboard-shortcut

[adriweb]

So hm, should we merge this addign a warning that it may only work correctly under some circumstances?