VB.Net by API/System.Drawing/RectangleF

New RectangleF

  

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class UsingRectangleF
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim g As Graphics = Me.CreateGraphics()
        Dim x As Single = 40.0F
        Dim y As Single = 40.0F
        Dim height As Single = 120.0F
        Dim width As Single = 120.0F
        Dim pt As New PointF(80.0F, 80.0F)
        Dim sz As New SizeF(100.0F, 100.0F)
        Dim rect1 As New RectangleF(pt, sz)
        Dim rect2 As New RectangleF(x, y, width, height)
        Dim rect3 As New RectangleF(10.0F, 10.0F, 180.0F, 180.0F)
        Dim redPen As New Pen(Color.Red, 2)
        Dim greenBrush As New SolidBrush(Color.Blue)
        Dim blueBrush As New SolidBrush(Color.Green)
        g.DrawRectangle(redPen, rect3.X, rect3.Y, rect3.Width, rect3.Height)
        g.FillRectangle(blueBrush, rect2)
        g.FillRectangle(greenBrush, rect1)
        redPen.Dispose()
        blueBrush.Dispose()
        greenBrush.Dispose()
        g.Dispose()

  End Sub
  Public Sub New()
   
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

RectangleF.Width

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class DrawCircle
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim a As Graphics =  e.Graphics
        Dim mypen As Pen
        Dim myrect As RectangleF
        mypen = New Pen(System.Drawing.Color.Red, 6)
        a = Me.CreateGraphics
        a.Clear(Me.BackColor)
        a.DrawEllipse(mypen, 100, 100, 50, 50)
        a.DrawEllipse(mypen, 75, 75, 100, 100)
        a.DrawEllipse(mypen, 25, 25, 200, 200)
        a.DrawEllipse(mypen, 0, 0, 250, 250)
        myrect.X = 300
        myrect.Y = 10
        myrect.Width = 250
        myrect.Height = 100
        a.DrawEllipse(mypen, myrect)
        myrect.X = 400
        myrect.Y = 10
        myrect.Width = 100
        myrect.Height = 250
        a.DrawEllipse(mypen, myrect)

        a.Dispose()
        mypen.Dispose()
  End Sub
  Public Sub New()
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class

RectangleF.X

  
Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class DrawCircle
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
public class Form1
  Inherits System.Windows.Forms.Form
  Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
        Dim a As Graphics =  e.Graphics
        Dim mypen As Pen
        Dim myrect As RectangleF
        mypen = New Pen(System.Drawing.Color.Red, 6)
        a = Me.CreateGraphics
        a.Clear(Me.BackColor)
        a.DrawEllipse(mypen, 100, 100, 50, 50)
        a.DrawEllipse(mypen, 75, 75, 100, 100)
        a.DrawEllipse(mypen, 25, 25, 200, 200)
        a.DrawEllipse(mypen, 0, 0, 250, 250)
        myrect.X = 300
        myrect.Y = 10
        myrect.Width = 250
        myrect.Height = 100
        a.DrawEllipse(mypen, myrect)
        myrect.X = 400
        myrect.Y = 10
        myrect.Width = 100
        myrect.Height = 250
        a.DrawEllipse(mypen, myrect)

        a.Dispose()
        mypen.Dispose()
  End Sub
  Public Sub New()
    MyBase.New()
    Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
    Me.ClientSize = New System.Drawing.Size(292, 273)
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
  End Sub
End Class