InkAnalyzer.FindInkLeafNodes 方法

傳回包含所有筆墨分葉節點的 ContextNodeCollection (筆墨分葉節點就是包含筆墨筆劃的 ContextNode 物件)。

命名空間： System.Windows.Ink
組件： IAWinFX (在 IAWinFX.dll 中)

語法

'宣告
Public Function FindInkLeafNodes As ContextNodeCollection
'用途
Dim instance As InkAnalyzer
Dim returnValue As ContextNodeCollection

returnValue = instance.FindInkLeafNodes()

public ContextNodeCollection FindInkLeafNodes()

public:
ContextNodeCollection^ FindInkLeafNodes()

public ContextNodeCollection FindInkLeafNodes()

public function FindInkLeafNodes() : ContextNodeCollection

傳回值

型別：System.Windows.Ink.ContextNodeCollection
所有筆墨分葉節點，這些節點包括內含筆墨筆劃的 ContextNode 物件。

備註

筆墨分葉節點的範例包括 InkWordNode、InkDrawingNode 及 InkBulletNode。

分葉節點不包含子節點。

範例

下列範例會對 InkAnalyzer (名為 theInkAnalyzer) 的所有筆墨分葉節點執行迴圈，以尋找具有最低下限的 ContextNode。一旦找到具有最低下限的節點，則會將與最低 ContextNode 相關聯的筆劃設定為紅色。

Dim lowest As Double = Double.MinValue
Dim lowestNode As ContextNode = Nothing
Dim leafNode As ContextNode
For Each leafNode In  theInkAnalyzer.FindInkLeafNodes()
    ' Find lowest node
    If leafNode.Location.GetBounds().Bottom > lowest Then
        lowestNode = leafNode
        lowest = leafNode.Location.GetBounds().Bottom
    End If
    ' Set each stroke to black
    Dim stroke As Stroke
    For Each stroke In  leafNode.Strokes
        stroke.DrawingAttributes.Color = Colors.Black
    Next stroke
Next leafNode
' Set lowest stroke to red
If Not (lowestNode Is Nothing) Then
    Dim stroke As Stroke
    For Each stroke In  lowestNode.Strokes
        stroke.DrawingAttributes.Color = Colors.Red
    Next stroke
End If

double lowest = double.MinValue;
ContextNode lowestNode = null;
foreach (ContextNode leafNode in theInkAnalyzer.FindInkLeafNodes())
{
    // Find lowest node
    if (leafNode.Location.GetBounds().Bottom > lowest)
    {
        lowestNode = leafNode;
        lowest = leafNode.Location.GetBounds().Bottom;
    }
    // Set each stroke to black
    foreach (Stroke stroke in leafNode.Strokes)
    {
        stroke.DrawingAttributes.Color = Colors.Black;
    }
}
// Set lowest stroke to red
if (lowestNode != null)
{
    foreach (Stroke stroke in lowestNode.Strokes)
    {
        stroke.DrawingAttributes.Color = Colors.Red;
    }
}