HitTestFilterBehavior 列舉

定義

public enum class HitTestFilterBehavior

public enum HitTestFilterBehavior

type HitTestFilterBehavior = 

Public Enum HitTestFilterBehavior

繼承

Object

ValueType

Enum

HitTestFilterBehavior

欄位

範例

以下範例展示了如何從命中測試過濾器回調方法回傳 HitTestFilterBehavior 一個值。 在這種情況下，過濾器會跳過標籤及其後代，並對其他所有東西進行命中測試。

// Filter the hit test values for each object in the enumeration.
public HitTestFilterBehavior MyHitTestFilter(DependencyObject o)
{
    // Test for the object value you want to filter.
    if (o.GetType() == typeof(Label))
    {
        // Visual object and descendants are NOT part of hit test results enumeration.
        return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
    }
    else
    {
        // Visual object is part of hit test results enumeration.
        return HitTestFilterBehavior.Continue;
    }
}

' Filter the hit test values for each object in the enumeration.
Public Function MyHitTestFilter(ByVal o As DependencyObject) As HitTestFilterBehavior
    ' Test for the object value you want to filter.
    If o.GetType() Is GetType(Label) Then
        ' Visual object and descendants are NOT part of hit test results enumeration.
        Return HitTestFilterBehavior.ContinueSkipSelfAndChildren
    Else
        ' Visual object is part of hit test results enumeration.
        Return HitTestFilterBehavior.Continue
    End If
End Function

備註

命中測試過濾器回調的回傳值為 HitTestFilterBehavior，決定處理視覺樹以進行命中測試時應採取的行動類型。 例如，如果你的命中測試過濾器回調回傳值 ContinueSkipSelfAndChildren為 ，你可以將當前視覺物件及其後代從命中測試結果評估中移除。