Remap keys

There are 3 ways to remap keyboard keys or characters:

1. Use keyboard triggers. It is the most flexible way. Less reliable, for example may not work in some windows.
2. Modify the Registry. It remaps keys. Look for software that can do it.
3. Create and install a custom keyboard layout. It remaps characters. Use Microsoft Keyboard Layout Creator or similar software.

The rest of this recipe is about the first way (keyboard triggers). Assume the codes are in file Hotkey triggers. Note: to remap keys use keys.more.sendKey or keys.sendL, not keys.send.

using Au.Triggers;

Disable key CapsLock when pressed without modifiers (Ctrl etc).

hk["CapsLock"] = o => {  };

Remap key Insert to Apps. With ?+ also remaps Ctrl+Insert etc.

hk["?+Ins"] = o => keys.more.sendKey(KKey.Apps);

Remap numeric keypad keys to characters when NumLock inactive. Lowercase or uppercase, depending on Shift and CapsLock.

var flags1 = TKFlags.ExtendedNo | TKFlags.NoModOff;
hk["Shift?+Home", flags1] = o => _RemapToChar(o, 'ą'); // 1
hk["Shift?+Up", flags1] = o => _RemapToChar(o, 'č'); // 2
hk["Shift?+PgUp", flags1] = o => _RemapToChar(o, 'ę'); // 3
hk["Shift?+Left", flags1] = o => _RemapToChar(o, 'ė'); // 4
hk["Shift?+Clear", flags1] = o => _RemapToChar(o, 'į'); // 5
hk["Shift?+Right", flags1] = o => _RemapToChar(o, 'š'); // 6
hk["Shift?+End", flags1] = o => _RemapToChar(o, 'ų'); // 7
hk["Shift?+Down", flags1] = o => _RemapToChar(o, 'ū'); // 8
hk["Shift?+PgDn", flags1] = o => _RemapToChar(o, 'ž'); // 9

void _RemapToChar(HotkeyTriggerArgs o, char c) {
	bool upper = o.Mod.Has(KMod.Shift);
	if (keys.isCapsLock) upper ^= true;
	if (upper) c = char.ToUpperInvariant(c);
	keys.sendL(c);
}