HidDevice.InputReportReceived 事件

定義

命名空間:

Windows.Devices.HumanInterfaceDevice

當 呼叫 GetInputReportAsync () 或 GetInputReportAsync (System.UInt16 reportId) 時，建立事件接聽程式來處理裝置發出的輸入報告。

// Register
event_token InputReportReceived(TypedEventHandler<HidDevice, HidInputReportReceivedEventArgs const&> const& handler) const;

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

// Revoke with event_revoker
HidDevice::InputReportReceived_revoker InputReportReceived(auto_revoke_t, TypedEventHandler<HidDevice, HidInputReportReceivedEventArgs const&> const& handler) const;

public event TypedEventHandler<HidDevice,HidInputReportReceivedEventArgs> InputReportReceived;

function onInputReportReceived(eventArgs) { /* Your code */ }
hidDevice.addEventListener("inputreportreceived", onInputReportReceived);
hidDevice.removeEventListener("inputreportreceived", onInputReportReceived);
- or -
hidDevice.oninputreportreceived = onInputReportReceived;

Public Custom Event InputReportReceived As TypedEventHandler(Of HidDevice, HidInputReportReceivedEventArgs) 

事件類型

TypedEventHandler<HidDevice,HidInputReportReceivedEventArgs>

範例

在這裡，我們會擷取輸入報表 (inputReport) ，並在非同步呼叫完成時觸發 InputReportReceived 事件的處理常式中取得報表內容。

HidInputReport inputReport = await device.GetInputReportAsync();
.
.
.
private void InputReportReceived(
    HidDevice sender, 
    HidInputReportReceivedEventArgs args)
    {
        HidInputReport inputReport = args.Report;
        IBuffer buffer = inputReport.Data;
        DataReader dr = DataReader.FromBuffer(buffer);
        byte[] bytes = new byte[inputReport.Data.Length];
        dr.ReadBytes(bytes);

        String inputReportContent = 
           System.Text.Encoding.ASCII.GetString(bytes);
    }

備註

這個方法會等候裝置在傳送資料時中斷主機。 在內部，HID WinRT API 會將 IOCTL 讀取要求傳送至堆疊中的較低驅動程式。

HID 迷你驅動程式會將 IOCTL 轉譯為通訊協定特定要求。 對於 USB 裝置，迷你驅動程式會將它轉譯為插斷 IN 要求。 而且，對於透過 Microsoft HID-I2C 迷你埠驅動程式執行的 I2C 裝置，迷你驅動程式會等候裝置判斷提示中斷。

另請參閱

• 自訂 HID 裝置範例