本文整理汇总了VB.NET中System.Windows.Forms.DrawItemEventHandler代理的典型用法代码示例。如果您正苦于以下问题：VB.NET DrawItemEventHandler代理的具体用法？VB.NET DrawItemEventHandler怎么用？VB.NET DrawItemEventHandler使用的例子？那么恭喜您, 这里精选的代理代码示例或许可以为您提供帮助。
在下文中一共展示了DrawItemEventHandler代理的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: InitializeMenu
' Declare the MainMenu control.
Friend WithEvents MainMenu1 As System.Windows.Forms.MainMenu
' Declare MenuItem2 as With-Events because it will be user drawn.
Friend WithEvents MenuItem2 As System.Windows.Forms.MenuItem
Private Sub InitializeMenu()
' Create MenuItem1, which will be drawn by the operating system.
Dim MenuItem1 As New MenuItem("Regular Menu Item")
' Create MenuItem2.
MenuItem2 = New MenuItem("Custom Menu Item")
' Set OwnerDraw property to true. This requires handling the
' DrawItem event for this menu item.
MenuItem2.OwnerDraw = True
'Add the event-handler delegate to handle the DrawItem event.
AddHandler MenuItem2.DrawItem, New DrawItemEventHandler(AddressOf DrawCustomMenuItem)
' Add the items to the menu.
MainMenu1 = New MainMenu(New MenuItem() {MenuItem1, MenuItem2})
' Add the menu to the form.
Me.Menu = Me.MainMenu1
End Sub
' Draw the custom menu item.
Private Sub DrawCustomMenuItem(ByVal sender As Object, ByVal e As _
System.Windows.Forms.DrawItemEventArgs)
' Cast the sender to MenuItem so you can access text property.
Dim customItem As MenuItem = CType(sender, MenuItem)
' Create a Brush and a Font to draw the MenuItem.
Dim aBrush As System.Drawing.Brush = System.Drawing.Brushes.DarkMagenta
Dim aFont As New Font("Garamond", 10, FontStyle.Italic, _
GraphicsUnit.Point)
' Get the size of the text to use later to draw an ellipse
' around the item.
Dim stringSize As SizeF = e.Graphics.MeasureString( _
customItem.Text, aFont)
' Draw the item and then draw the ellipse.
e.Graphics.DrawString(customItem.Text, aFont, _
aBrush, e.Bounds.X, e.Bounds.Y)
e.Graphics.DrawEllipse(New Pen(System.Drawing.Color.Black, 2), _
New Rectangle(e.Bounds.X, e.Bounds.Y, CInt(stringSize.Width), _
CInt(stringSize.Height)))
End Sub