本文整理匯總了VB.NET中System.Drawing.CharacterRange結構體的典型用法代碼示例。如果您正苦於以下問題：VB.NET CharacterRange結構體的具體用法？VB.NET CharacterRange怎麽用？VB.NET CharacterRange使用的例子？那麽, 這裏精選的結構體代碼示例或許可以為您提供幫助。
在下文中一共展示了CharacterRange結構體的1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: HighlightACharacterRange
Private Sub HighlightACharacterRange(ByVal e As PaintEventArgs)
' Declare the string to draw.
Dim message As String = _
"This is the string to highlight a word in."
' Declare the word to highlight.
Dim searchWord As String = "string"
' Create a CharacterRange array with the searchWord
' location and length.
Dim ranges() As CharacterRange = _
New CharacterRange() _
{New CharacterRange(message.IndexOf(searchWord), _
searchWord.Length)}
' Construct a StringFormat object.
Dim stringFormat1 As New StringFormat
' Set the ranges on the StringFormat object.
stringFormat1.SetMeasurableCharacterRanges(ranges)
' Declare the font to write the message in.
Dim largeFont As Font = New Font(FontFamily.GenericSansSerif, _
16.0F, GraphicsUnit.Pixel)
' Construct a new Rectangle.
Dim displayRectangle As New Rectangle(20, 20, 200, 100)
' Convert the Rectangle to a RectangleF.
Dim displayRectangleF As RectangleF = _
RectangleF.op_Implicit(displayRectangle)
' Get the Region to highlight by calling the
' MeasureCharacterRanges method.
Dim charRegion() As Region = _
e.Graphics.MeasureCharacterRanges(message, _
largeFont, displayRectangleF, stringFormat1)
' Draw the message string on the form.
e.Graphics.DrawString(message, largeFont, Brushes.Blue, _
displayRectangleF)
' Fill in the region using a semi-transparent color.
e.Graphics.FillRegion(New SolidBrush(Color.FromArgb(50, _
Color.Fuchsia)), charRegion(0))
End Sub