本文整理汇总了VB.NET中System.Windows.Media.DrawingVisual.RenderOpen方法的典型用法代码示例。如果您正苦于以下问题：VB.NET DrawingVisual.RenderOpen方法的具体用法？VB.NET DrawingVisual.RenderOpen怎么用？VB.NET DrawingVisual.RenderOpen使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了DrawingVisual.RenderOpen方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
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()