C# responds to changes in system configuration items

For example, after we lock the system, if QQ does not exit, it will show a busy status.

Please add the namespace Microsoft.Win32, and then register the following events.

. DisplaySettingsChanged (including Changing) display settings

. InstalledFontsChanged font change

. PaletteChanged

. PowerModeChanged power state

. SessionEnded (the user is logging out or the session has ended)

.

. TimeChanged

. UserPreferenceChanged (User preference includes Changing)

Our ERP system will monitor whether the system time has changed. If the time is adjusted outside the range of the ERP license file, the ERP software will become unavailable.