/// <summary>
/// Subscribes to the hook and starts firing events.
/// </summary>
/// <exception cref="System.ComponentModel.Win32Exception"></exception>
public void Start()
{
if (Enabled)
{
throw new InvalidOperationException("Hook listener is already started. Call Stop() method first or use Enabled property.");
}
HookCallbackReferenceKeeper = new HookCallback(HookCallback);
try {
HookHandle = m_Hooker.Subscribe(GetHookId(), HookCallbackReferenceKeeper);
} catch (Exception) {
HookCallbackReferenceKeeper = null;
HookHandle = 0;
throw;
}
}
