SystemTriggerType Enum
Definition
Important
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Specifies the system events that can be used to trigger a background task.
public enum class SystemTriggerType
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
enum class SystemTriggerType
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
public enum SystemTriggerType
var value = Windows.ApplicationModel.Background.SystemTriggerType.invalid
Public Enum SystemTriggerType
- Inheritance
-
SystemTriggerType
- Attributes
Windows requirements
Device family |
Windows 10 (introduced in 10.0.10240.0)
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API contract |
Windows.Foundation.UniversalApiContract (introduced in v1.0)
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Fields
BackgroundWorkCostChange | 13 | The background task is triggered when the cost of background work changes.
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ControlChannelReset | 5 | The background task is triggered when a control channel is reset. Note This trigger type does not support a OneShot mode. So the OneShot parameter must be false when using the SystemTrigger constructor.
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DefaultSignInAccountChange | 15 | The background task is triggered when the default sign-in account changes. Note This value was introduced in Windows 10, version 1607. |
InternetAvailable | 6 | The background task is triggered when the Internet becomes available. |
Invalid | 0 | Not a valid trigger type. |
LockScreenApplicationAdded | 9 | The background task is triggered when a tile is added to the lock screen. |
LockScreenApplicationRemoved | 10 | The background task is triggered when a tile is removed from the lock screen. |
NetworkStateChange | 4 | The background task is triggered when a network change occurs, such as a change in cost or connectivity. |
OnlineIdConnectedStateChange | 12 | The background task is triggered when the Microsoft account connected to the account changes. |
PowerStateChange | 14 | The background task is triggered when the status of the battery, BatteryStatus, changes. Note This value was introduced in Windows 10. |
ServicingComplete | 8 | The background task is triggered when the system has finished updating an app. |
SessionConnected | 7 | The background task is triggered when the session is connected.
|
SmsReceived | 1 | The background task is triggered when a new SMS message is received by an installed mobile broadband device. |
TimeZoneChange | 11 | The background task is triggered when the time zone changes on the device (for example, when the system adjusts the clock for daylight saving time). Note This trigger only fires if the new time zone actually changes the system time. |
UserAway | 3 | The background task is triggered when the user becomes absent.
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UserPresent | 2 | The background task is triggered when the user becomes present.
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Remarks
Version history
Windows version | SDK version | Value added |
---|---|---|
1607 | 14393 | DefaultSignInAccountChange |