/// <summary>
/// If power manager for the application is null, create one and attach it to the main window to listen for power broadcasts
/// </summary>
private void InitializePowerManager()
{
if (_powerManager == null && this.MainWindow != null)
{
// Find main window's handle to attach power manager
_powerManager = new PowerManager();
if (this.MainWindowHandle != IntPtr.Zero)
{
_powerManager.AttachHwnd(this.MainWindowHandle, ServiceProvider.Logger);
}
_powerManager.SystemSuspending += OnPowerManagerSystemSuspending;
_powerManager.SystemResumed += OnPowerManagerSystemResumed;
}
}