Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
Imports System.Math
public class MeasureCharacterRange
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 txt As String = "www.java2java.com"
Dim the_font As New Font("Times New Roman", 50, FontStyle.Bold, GraphicsUnit.Pixel)
Dim layout_rect As New RectangleF(0, 0, Me.ClientSize.Width, Me.ClientSize.Height)
Dim string_format As New StringFormat
string_format.LineAlignment = StringAlignment.Center
string_format.Alignment = StringAlignment.Center
e.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit
Dim character_ranges(txt.Length - 1) As CharacterRange
For i As Integer = 0 To txt.Length - 1
character_ranges(i) = New CharacterRange(i, 1)
Next i
string_format.SetMeasurableCharacterRanges(character_ranges)
Dim character_regions() As Region = e.Graphics.MeasureCharacterRanges(txt, the_font, layout_rect, string_format)
For Each rgn As Region In character_regions
Dim character_bounds As RectangleF = rgn.GetBounds(e.Graphics)
Dim character_rect As Rectangle = Rectangle.Round(character_bounds)
e.Graphics.DrawRectangle(Pens.White, character_rect)
Next rgn
e.Graphics.DrawString(txt, the_font, Brushes.Black, layout_rect, string_format)
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
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