public void Register(Hotkey key)
{
if (handle == IntPtr.Zero)
throw new InvalidOperationException("You can't register hotkeys until your Window is loaded.");
if (NativeMethods.RegisterHotKey(handle, ++id, key.modifiers.ModifierKeys, key.key)) {
key.id = id;
hotkeys.Add(id, key);
ObservableHotkeys.Add(key);
}
else Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
}
public void Unregister(Hotkey key)
{
int index = IndexOf(key);
if (index > 0) {
if (NativeMethods.UnregisterHotKey(handle, index)) {
hotkeys.Remove(index);
ObservableHotkeys.Remove(key);
}
else Marshal.ThrowExceptionForHR(Marshal.GetLastWin32Error());
}
}
private int IndexOf(Hotkey item)
{
if (item.id > 0 && hotkeys.ContainsKey(item.id))
return item.id;
if (hotkeys.ContainsValue(item)) {
foreach (var k in hotkeys) {
if (item.Equals(k.Value)) {
item.id = k.Value.id;
return item.id;
}
}
}
throw new ArgumentOutOfRangeException(string.Format("The hotkey \"{0}\" is not in this hotkey manager.", item));
}
public Hotkeys(Hotkey displayHotKey)
: this()
{
DisplayHotKey = displayHotKey;
}