本文整理匯總了VB.NET中System.Windows.Media.DrawingVisual.Drawing屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET DrawingVisual.Drawing屬性的具體用法？VB.NET DrawingVisual.Drawing怎麽用？VB.NET DrawingVisual.Drawing使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。
在下文中一共展示了DrawingVisual.Drawing屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。
示例1: RetrieveDrawings
' Enumerate the DrawingVisual children of a host visual.
Public Sub RetrieveDrawings(ByVal visualHost As Visual)
For i As Integer = 0 To VisualTreeHelper.GetChildrenCount(visualHost) - 1
' Retrieve child visual at specified index value.
Dim dependencyObject As DependencyObject = VisualTreeHelper.GetChild(visualHost, i)
' Determine if the child object is a DrawingVisual.
If dependencyObject.GetType() Is GetType(DrawingVisual) Then
Dim drawingVisual As DrawingVisual = CType(dependencyObject, DrawingVisual)
If drawingVisual.Drawing IsNot Nothing Then
If drawingVisual.Drawing.GetType() Is GetType(DrawingGroup) Then
' Enumerate the drawings in the DrawingGroup.
EnumDrawingGroup(drawingVisual.Drawing)
End If
End If
End If
Next i
End Sub
' Enumerate the drawings in the DrawingGroup.
Public Sub EnumDrawingGroup(ByVal drawingGroup As DrawingGroup)
Dim dc As DrawingCollection = drawingGroup.Children
' Enumerate the drawings in the DrawingCollection.
For Each drawing As Drawing In dc
' If the drawing is a DrawingGroup, call the function recursively.
If drawing.GetType() Is GetType(DrawingGroup) Then
EnumDrawingGroup(CType(drawing, DrawingGroup))
End If
If drawing.GetType() Is GetType(GeometryDrawing) Then
' Perform action based on drawing type.
End If
Next drawing
End Sub