/// Initializes a new instance of the <see cref="SystemHotKeyPressedEventArgs"/> class.
/// <param name="hotKey">A <see cref="HotKey"/> instance that specifies which hot key was pressed.</param>
public SystemHotKeyPressedEventArgs(HotKey hotKey)
{
_hotKey = hotKey;
}
/// <summary>
/// Unregisters the specific hot key.
/// </summary>
/// <param name="hotKey">The <see cref="HotKey"/> that needs to be unregistered.</param>
/// <returns>A <see cref="bool"/> value that indicates whether the operation is successed.</returns>
public bool Unregister(HotKey hotKey)
{
if (_hotKeys.ContainsKey(hotKey.Id))
{
Api.UnregisterHotKey(_listeningForm.Handle, hotKey.Id);
_hotKeys.Remove(hotKey.Id);
return true;
}
else
{
return false;
}
}
internal void InvokeSystemHotKeyPressed(HotKey hotKey)
{
SystemHotKeyPressedEventArgs e = new SystemHotKeyPressedEventArgs(hotKey);
// Single click
_lastPressedHotKey = hotKey;
_lastPressedTime = DateTime.Now;
OnSystemHotKeyPressed(e);
}
/// Registers a new system hot key.
/// <param name="hotKey">The <see cref="HotKey"/> that need to register.</param>
/// <exception cref="InvalidOperationException">
/// The same hot key or name already exists.
/// </exception>
public void Register(HotKey hotKey)
{
// Check for duplicate hot key name.
foreach (HotKey existingHotKey in _hotKeys.Values)
{
if (existingHotKey.Name == hotKey.Name)
{
throw new InvalidOperationException("The hot key with name of '" + hotKey.Name + "' has been already registered.");
}
if (existingHotKey.Modifiers == hotKey.Modifiers &&
existingHotKey.Key == hotKey.Key)
{
throw new InvalidOperationException("The same hot key has been already registered.");
}
}
// Register the hot key.
hotKey.Id = nextId;
_hotKeys.Add(nextId, hotKey);
Api.RegisterHotKey(_listeningForm.Handle, nextId, (uint)(hotKey.Modifiers), hotKey.Key);
// Increase the internal hot key id.
nextId++;
}