本文整理匯總了VB.NET中System.Windows.Forms.ToolStripItem.IsOnDropDown屬性的典型用法代碼示例。如果您正苦於以下問題：VB.NET ToolStripItem.IsOnDropDown屬性的具體用法？VB.NET ToolStripItem.IsOnDropDown怎麽用？VB.NET ToolStripItem.IsOnDropDown使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類System.Windows.Forms.ToolStripItem的用法示例。
在下文中一共展示了ToolStripItem.IsOnDropDown屬性的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: OnPaint
' This method defines the painting behavior of the control.
' It performs the following operations:
'
' Computes the layout of the item's image and text.
' Draws the item's background image.
' Draws the item's image.
' Draws the item's text.
'
' Drawing operations are implemented in the
' RolloverItemRenderer class.
Protected Overrides Sub OnPaint(e As PaintEventArgs)
MyBase.OnPaint(e)
If (Me.Owner IsNot Nothing) Then
' Find the dimensions of the image and the text
' areas of the item.
Me.ComputeImageAndTextLayout()
' Draw the background. This includes drawing a highlighted
' border when the mouse is in the client area.
Dim ea As New ToolStripItemRenderEventArgs(e.Graphics, Me)
Me.Owner.Renderer.DrawItemBackground(ea)
' Draw the item's image.
Dim irea As New ToolStripItemImageRenderEventArgs(e.Graphics, Me, imageRect)
Me.Owner.Renderer.DrawItemImage(irea)
' If the item is on a drop-down, give its
' text a different highlighted color.
Dim highlightColor As Color = CType(IIf(Me.IsOnDropDown, Color.Salmon, SystemColors.ControlLightLight), Color)
' Draw the text, and highlight it if the
' the rollover state is true.
Dim rea As New ToolStripItemTextRenderEventArgs( _
e.Graphics, _
Me, _
MyBase.Text, _
textRect, _
CType(IIf(Me.rolloverValue, highlightColor, MyBase.ForeColor), Color), _
MyBase.Font, _
MyBase.TextAlign)
Me.Owner.Renderer.DrawItemText(rea)
End If
End Sub