本文整理匯總了VB.NET中System.Windows.Media.DrawingVisual.RenderOpen方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET DrawingVisual.RenderOpen方法的具體用法？VB.NET DrawingVisual.RenderOpen怎麽用？VB.NET DrawingVisual.RenderOpen使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。
在下文中一共展示了DrawingVisual.RenderOpen方法的2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: CreateDrawingVisualRectangle
' Create a DrawingVisual that contains a rectangle.
Private Function CreateDrawingVisualRectangle() As DrawingVisual
Dim drawingVisual As New DrawingVisual()
' Retrieve the DrawingContext in order to create new drawing content.
Dim drawingContext As DrawingContext = drawingVisual.RenderOpen()
' Create a rectangle and draw it in the DrawingContext.
Dim rect As New Rect(New Point(160, 100), New Size(320, 80))
drawingContext.DrawRectangle(Brushes.LightBlue, CType(Nothing, Pen), rect)
' Persist the drawing content.
drawingContext.Close()
Return drawingVisual
End Function示例2: Rect
' Retrieve the DrawingContext in order to draw into the visual object.
Dim drawingContext As DrawingContext = drawingVisual.RenderOpen()
' Draw a rectangle into the DrawingContext.
Dim rect As New Rect(New Point(160, 100), New Size(320, 80))
drawingContext.DrawRectangle(Brushes.LightBlue, CType(Nothing, Pen), rect)
' Draw a formatted text string into the DrawingContext.
drawingContext.DrawText(New FormattedText("Hello, world", CultureInfo.GetCultureInfo("en-us"), FlowDirection.LeftToRight, New Typeface("Verdana"), 36, Brushes.Black), New Point(200, 116))
' Persist the drawing content.
drawingContext.Close()