Class TKeysPressed

Check is a key (TKey) pressed.

This array is read-only from outside of this class! Always Keys[keyNone] = false.

Check is a character pressed.

This array is read-only from outside of this class! Always Characters[#0] = false.

Note that since a given character may be generated by various key combinations, this doesn't work as reliably as Keys array. For example, consider pressing a, then shift, then releasing a — for a short time character 'A', and not 'a', should be pressed.

Although we do our best (have some mapping tables to track characters), and in practice this works Ok. But still checking for keys on Keys array, when possible, is advised.

Check which modifier keys are pressed. The result it based on current Keys[keyCtrl], Keys[keyShift] etc. values.

Call when key is pressed. Pass TKey, and corresponding character (as String, since it may be UTF-8 character).

Pass Key = keyNone if this is not representable as TKey, pass KeyString = '' if this is not representable as String. But never pass both Key = keyNone and KeyString = '' (this would mean that nothing was pressed, as least nothing that can be represented by CGE).

Call when key is released. Never pass Key = keyNone here.

It returns which character was released as a consequence of this key release.

Mark all keys as released. That is, this sets all Keys and Characters items to False. Also resets internal arrays used to track Characters from KeyDown and KeyUp.

Check is a key (TKey) pressed. Returns the same values as are in the Keys table. It's a default property of this class, so you can write e.g. Window.Pressed[keyX] instead of Window.Pressed.Keys[keyX].

Does an UTF-8 key represented by this String is pressed. Note that internallly we only track 8-bit keys (Char) for now, but this will change some day.