/// <summary>
/// Initializes a new instance of the <see cref="KeyHook"/> class and installs the keyboard hook.
/// </summary>
public KeyHook(KeyEventCallback KeyDown, KeyEventCallback KeyUp = null)
{
this.KeyDown = KeyDown;
this.KeyUp = KeyUp;
// makes sure reference to HookProc method does not
// get collected by the garbage collector
HookProcDel = HookProc;
Hook();
}
private static void UnregisterKey(Dictionary <KeyCode, KeyEventCallback> registry, KeyCode keyCode, KeyEventCallback callback)
{
if (registry.ContainsKey(keyCode))
{
registry[keyCode] -= callback;
if (registry[keyCode] == null)
{
registry.Remove(keyCode);
}
}
}
private static void RegisterKey(Dictionary <KeyCode, KeyEventCallback> registry, KeyCode keyCode, KeyEventCallback callback)
{
if (registry.ContainsKey(keyCode))
{
registry[keyCode] += callback;
}
else
{
registry.Add(keyCode, callback);
}
}
/// <summary>
/// Creates a hotkey
/// </summary>
/// <param name="key">Key to create a hotkey for</param>
/// <param name="keydown_callback">Delegate to handle when key is pressed.
/// If this delegate returns true, then the key press will be blocked from registering for other applications.</param>
/// <param name="keyup_callback">Delegate to handle when key is released.
/// If this delegate returns true, then the key press will be blocked from registering for other applications.</param>
public void CreateHotKey(Keys key, KeyEventCallback keydown_callback, KeyEventCallback keyup_callback = null)
{
HotKeys.Add(new HotKey(key, keydown_callback, keyup_callback));
}
public HotKey(Keys Key, KeyEventCallback keydown_callback, KeyEventCallback keyup_callback = null)
{
this.Key = Key;
this.KeyDown = keydown_callback;
this.KeyUp = keyup_callback;
}
public static void RegisterKeyDeactivated(KeyCode keyCode, KeyEventCallback callback)
{
ReferenceLiaison();
RegisterKey(_liaison._keyDeactivatedEventRegistry, keyCode, callback);
}
public static void UnregisterKeyActive(KeyCode keyCode, KeyEventCallback callback)
{
UnregisterKey(_liaison._keyActiveEventRegistry, keyCode, callback);
DereferenceLiaison();
}
