ObjectNode 類別

表示從物件自訂辨識器傳回之節點的 ContextNode。

命名空間：  Microsoft.Ink
組件：  Microsoft.Ink.Analysis (在 Microsoft.Ink.Analysis.dll 中)

語法

'宣告
Public NotInheritable Class ObjectNode _
    Inherits ContextNode
'用途
Dim instance As ObjectNode

public sealed class ObjectNode : ContextNode

public ref class ObjectNode sealed : public ContextNode

public final class ObjectNode extends ContextNode

public final class ObjectNode extends ContextNode

備註

如需物件辨識器運作方式的詳細資訊，請參閱Object Recognizers。

ObjectNode 不能包含任何子項目。

ObjectNode 物件只會包含在 CustomRecognizerNode 物件內。

範例

下列範例會對 CustomRecognizerNode 物件的子節點 musicRecognizer. 執行迴圈 (Loop)，然後再尋找每個 ObjectNode 並擷取相關的屬性。應用程式會將每個 ObjectNode 視為節點。自訂辨識器已經加入五個屬性 (letter、octave、measure、withinMeasure 和 duration) 來描述節點。ContextNode.GetPropertyData 方法會擷取具有下列 Guid (英文) 成員的資料：noteLetterId、noteOctaveId、noteMeasureId、noteWithinMeasureId 和 noteDurationId。在收集所有資料之後，DrawNote 方法便會繪製該節點。

Dim subNode As ContextNode
For Each subNode In musicRecognizer.SubNodes
    If TypeOf subNode Is ObjectNode Then
        ' Assume all object nodes represent notes
        Dim noteObject As ObjectNode = CType(subNode, ObjectNode)
        Dim letter As String
        If noteObject.ContainsPropertyData(Me.noteLetterId) Then
            letter = CType(noteObject.GetPropertyData(Me.noteLetterId), String)
        Else
            letter = ""
        End If
        Dim octave As Integer
        If noteObject.ContainsPropertyData(Me.noteOctaveId) Then
            octave = CType(noteObject.GetPropertyData(Me.noteOctaveId), Integer)
        Else
            octave = -1
        End If
        Dim measure As Integer
        If noteObject.ContainsPropertyData(Me.noteMeasureId) Then
            measure = CType(noteObject.GetPropertyData(Me.noteMeasureId), Integer)
        Else
            measure = -1
        End If
        Dim withinMeasure As Integer
        If noteObject.ContainsPropertyData(Me.noteWithinMeasureId) Then
            withinMeasure = CType(noteObject.GetPropertyData(Me.noteWithinMeasureId), Integer)
        Else
            withinMeasure = -1
        End If
        Dim duration As Integer
        If noteObject.ContainsPropertyData(Me.noteDurationId) Then
            duration = CType(noteObject.GetPropertyData(Me.noteDurationId), Integer)
        Else
            duration = -1
        End If

        ' Draw note if all data is valid
        If (letter.Length > 0 And octave >= 0 And measure >= 0 And _
            withinMeasure >= 0 And duration >= 0) Then
            DrawNote(letter, octave, measure, withinMeasure, duration)
        End If
    End If
Next subNode

foreach (ContextNode subNode in musicRecognizer.SubNodes)
{
    if (subNode is ObjectNode)
    {
        // Assume all object nodes represent notes
        ObjectNode noteObject = (ObjectNode)subNode;
        string letter;
        if (noteObject.ContainsPropertyData(this.noteLetterId))
            letter = (string)noteObject.GetPropertyData(this.noteLetterId);
        else
            letter = "";
        int octave;
        if (noteObject.ContainsPropertyData(this.noteOctaveId))
            octave = (int)noteObject.GetPropertyData(this.noteOctaveId);
        else
            octave = -1;
        int measure;
        if (noteObject.ContainsPropertyData(this.noteMeasureId))
            measure = (int)noteObject.GetPropertyData(this.noteMeasureId);
        else
            measure = -1;
        int withinMeasure;
        if (noteObject.ContainsPropertyData(this.noteWithinMeasureId))
            withinMeasure = (int)noteObject.GetPropertyData(this.noteWithinMeasureId);
        else
            withinMeasure = -1;
        int duration;
        if (noteObject.ContainsPropertyData(this.noteOctaveId))
            duration = (int)noteObject.GetPropertyData(this.noteDurationId);
        else
            duration = -1;

        // Draw note if all data is valid
        if (letter.Length > 0 && octave >= 0 && measure >= 0 &&
            withinMeasure >= 0 && duration >= 0)
        {
            DrawNote(letter, octave, measure, withinMeasure, duration);
        }
    }
}

繼承階層架構

System.Object
  Microsoft.Ink.ContextNode
    Microsoft.Ink.ObjectNode

執行緒安全

這個型別的任何 Public static (在 Visual Basic 中為 Shared) 成員都具備執行緒安全。並非所有的執行個體成員都是安全執行緒。

平台

Windows Vista

.NET Framework 和 .NET Compact Framework 並不支援各種平台的所有版本。如需支援平台版本的相關資訊，請參閱 .NET Framework 系統需求。

版本資訊

.NET Framework

支援版本：3.0

請參閱

參考

ObjectNode 成員

Microsoft.Ink 命名空間

Microsoft.Ink.CustomRecognizerNode

其他資源

Object Recognizers