本文整理匯總了VB.NET中System.Windows.Automation.TextPattern.FontNameAttribute字段的典型用法代碼示例。如果您正苦於以下問題：VB.NET TextPattern.FontNameAttribute字段的具體用法？VB.NET TextPattern.FontNameAttribute怎麽用？VB.NET TextPattern.FontNameAttribute使用的例子？那麽, 這裏精選的字段代碼示例或許可以為您提供幫助。
在下文中一共展示了TextPattern.FontNameAttribute字段的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: GetFontNameAttribute
''' -------------------------------------------------------------------
''' <summary>
''' Outputs the FontNameAttribute value for a range of text.
''' </summary>
''' <param name="targetTextElement">
''' The AutomationElement. that represents the text provider.
''' </param>
''' -------------------------------------------------------------------
Private Sub GetFontNameAttribute( _
ByVal targetTextElement As AutomationElement)
Dim targetTextPattern As TextPattern = _
DirectCast(targetTextElement.GetCurrentPattern( _
TextPattern.Pattern), TextPattern)
If (targetTextPattern Is Nothing) Then
' Target control doesn't support TextPattern.
Return
End If
' If the target control doesn't support selection then return.
' Otherwise, get the text attribute for the selected text.
' If there are currently no selections then the text attribute
' will be obtained from the insertion point.
Dim textRanges() As TextPatternRange
If (targetTextPattern.SupportedTextSelection = SupportedTextSelection.None) Then
Return
Else
textRanges = targetTextPattern.GetSelection()
End If
Dim textRange As TextPatternRange
For Each textRange In textRanges
Dim textAttribute As Object = _
textRange.GetAttributeValue( _
TextPattern.FontNameAttribute)
If (textAttribute = TextPattern.MixedAttributeValue) Then
' Returns MixedAttributeValue if the value of the
' specified attribute varies over the text range.
Console.WriteLine("Mixed fonts.")
ElseIf (textAttribute = AutomationElement.NotSupported) Then
' Returns NotSupported if the specified attribute is
' not supported by the provider or the control.
Console.WriteLine( _
"FontNameAttribute not supported by provider.")
Else
Console.WriteLine(textAttribute.ToString())
End If
Next
End Sub