通过

ClaimedBarcodeScanner.Closed 事件

  • 参考

定义

命名空间:
Windows.Devices.PointOfService
编辑

关闭 ClaimedBarcodeScanner 时引发的事件。

// Register
event_token Closed(TypedEventHandler<ClaimedBarcodeScanner, ClaimedBarcodeScannerClosedEventArgs const&> const& handler) const;

// Revoke with event_token
void Closed(event_token const* cookie) const;

// Revoke with event_revoker
ClaimedBarcodeScanner::Closed_revoker Closed(auto_revoke_t, TypedEventHandler<ClaimedBarcodeScanner, ClaimedBarcodeScannerClosedEventArgs const&> const& handler) const;
public event TypedEventHandler<ClaimedBarcodeScanner,ClaimedBarcodeScannerClosedEventArgs> Closed;
function onClosed(eventArgs) { /* Your code */ }
claimedBarcodeScanner.addEventListener("closed", onClosed);
claimedBarcodeScanner.removeEventListener("closed", onClosed);
- or -
claimedBarcodeScanner.onclosed = onClosed;
Public Custom Event Closed As TypedEventHandler(Of ClaimedBarcodeScanner, ClaimedBarcodeScannerClosedEventArgs)

事件类型

TypedEventHandler<ClaimedBarcodeScanner,ClaimedBarcodeScannerClosedEventArgs>

Windows 要求

设备系列
Windows 10, version 1809 (在 10.0.17763.0 中引入)
API contract
Windows.Foundation.UniversalApiContract (在 v7.0 中引入)

注解

暂停应用程序时，将关闭所有 ClaimedBarcodeScanner 对象。 此事件可用于确定何时需要重新建立条形码扫描仪连接。

适用于

另请参阅