本文整理汇总了VB.NET中System.Drawing.Graphics.IsVisible方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Graphics.IsVisible方法的具体用法？VB.NET Graphics.IsVisible怎么用？VB.NET Graphics.IsVisible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。您也可以进一步了解该方法所在类System.Drawing.Graphics的用法示例。
在下文中一共展示了Graphics.IsVisible方法的8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: IsVisiblePoint
Private Sub IsVisiblePoint(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of points.
Dim x1 As Integer = 100
Dim y1 As Integer = 100
Dim x2 As Integer = 200
Dim y2 As Integer = 200
Dim point1 As New Point(x1, y1)
Dim point2 As New Point(x2, y2)
' If point is visible, fill ellipse that represents it.
If e.Graphics.IsVisible(point1) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Red), x1, y1, _
10, 10)
End If
If e.Graphics.IsVisible(point2) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Blue), x2, y2, _
10, 10)
End If
End Sub示例2: IsVisiblePointF
Private Sub IsVisiblePointF(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of points.
Dim x1 As Single = 100.0F
Dim y1 As Single = 100.0F
Dim x2 As Single = 200.0F
Dim y2 As Single = 200.0F
Dim point1 As New PointF(x1, y1)
Dim point2 As New PointF(x2, y2)
' If point is visible, fill ellipse that represents it.
If e.Graphics.IsVisible(point1) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Red), x1, y1, _
10.0F, 10.0F)
End If
If e.Graphics.IsVisible(point2) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Blue), x2, y2, _
10.0F, 10.0F)
End If
End Sub示例3: IsVisibleRectangle
Private Sub IsVisibleRectangle(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of rectangles.
Dim rect1 As New Rectangle(100, 100, 20, 20)
Dim rect2 As New Rectangle(200, 200, 20, 20)
' If rectangle is visible, fill it.
If e.Graphics.IsVisible(rect1) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Red), rect1)
End If
If e.Graphics.IsVisible(rect2) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Blue), rect2)
End If
End Sub示例4: IsVisibleRectangleF
Private Sub IsVisibleRectangleF(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of rectangles.
Dim rect1 As New RectangleF(100.0F, 100.0F, 20.0F, 20.0F)
Dim rect2 As New RectangleF(200.0F, 200.0F, 20.0F, 20.0F)
' If rectangle is visible, fill it.
If e.Graphics.IsVisible(rect1) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Red), rect1)
End If
If e.Graphics.IsVisible(rect2) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Blue), rect2)
End If
End Sub示例5: IsVisibleInt
Private Sub IsVisibleInt(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of points.
Dim x1 As Integer = 100
Dim y1 As Integer = 100
Dim x2 As Integer = 200
Dim y2 As Integer = 200
' If point is visible, fill ellipse that represents it.
If e.Graphics.IsVisible(x1, y1) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Red), x1, y1, _
10, 10)
End If
If e.Graphics.IsVisible(x2, y2) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Blue), x2, y2, _
10, 10)
End If
End Sub示例6: IsVisibleFloat
Private Sub IsVisibleFloat(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of points.
Dim x1 As Single = 100.0F
Dim y1 As Single = 100.0F
Dim x2 As Single = 200.0F
Dim y2 As Single = 200.0F
' If point is visible, fill ellipse that represents it.
If e.Graphics.IsVisible(x1, y1) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Red), x1, y1, _
10.0F, 10.0F)
End If
If e.Graphics.IsVisible(x2, y2) Then
e.Graphics.FillEllipse(New SolidBrush(Color.Blue), x2, y2, _
10.0F, 10.0F)
End If
End Sub示例7: Rectangle
Private Sub IsVisible4Int(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of rectangles.
Dim x1 As Integer = 100
Dim y1 As Integer = 100
Dim width1 As Integer = 20
Dim height1 As Integer = 20
Dim x2 As Integer = 200
Dim y2 As Integer = 200
Dim width2 As Integer = 20
Dim height2 As Integer = 20
' If rectangle is visible, fill it.
If e.Graphics.IsVisible(x1, y1, width1, height1) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Red), x1, y1, _
width1, height1)
End If
If e.Graphics.IsVisible(x2, y2, width2, height2) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Blue), x2, y2, _
width2, height2)
End If
End Sub示例8: Rectangle
Private Sub IsVisible4Float(ByVal e As PaintEventArgs)
' Set clip region.
Dim clipRegion As New [Region](New Rectangle(50, 50, 100, 100))
e.Graphics.SetClip(clipRegion, CombineMode.Replace)
' Set up coordinates of rectangles.
Dim x1 As Single = 100.0F
Dim y1 As Single = 100.0F
Dim width1 As Single = 20.0F
Dim height1 As Single = 20.0F
Dim x2 As Single = 200.0F
Dim y2 As Single = 200.0F
Dim width2 As Single = 20.0F
Dim height2 As Single = 20.0F
' If rectangle is visible, fill it.
If e.Graphics.IsVisible(x1, y1, width1, height1) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Red), x1, y1, _
width1, height1)
End If
If e.Graphics.IsVisible(x2, y2, width2, height2) Then
e.Graphics.FillRectangle(New SolidBrush(Color.Blue), x2, y2, _
width2, height2)
End If
End Sub