HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;//窗口过程
if (hwndSource != null)
{
hwndSource.AddHook(new HwndSourceHook(DeveiceChanged)); //挂钩
}
HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;//窗口过程
if (hwndSource != null)
{
hwndSource.AddHook(new HwndSourceHook(DeveiceChanged)); //挂钩
}