共用方式為

ClaimedBarcodeScanner.Closed 事件

  • 參考

定義

命名空間:
Windows.Devices.PointOfService
編輯

當 ClaimedBarcodeScanner關閉時所引發的事件。

// 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)

事件類型

TypedEventHandler<ClaimedBarcodeScanner,ClaimedBarcodeScannerClosedEventArgs>

Windows 需求

裝置系列
Windows 10, version 1809 (已於 10.0.17763.0 引進)
API contract
Windows.Foundation.UniversalApiContract (已於 v7.0 引進)

備註

當應用程式暫停時，所有 ClaimedBarcodeScanner 物件都會關閉。 此事件有助於判斷何時需要重新建立條碼掃描器連線。

適用於

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