ToolboxBitmapAttribute Class
Allows you to specify an icon to represent a control in a container, such as the Microsoft Visual Studio Form Designer.
Assembly: System.Drawing (in System.Drawing.dll)
You can apply a ToolboxBitmapAttribute to a control so that containers, such as Microsoft Visual Studio Form Designer, can retrieve an icon that represents the control. The bitmap for the icon can be in a file by itself or embedded in the assembly that contains the control. The size of the bitmap that you embed in the control's assembly (or store in a separate file) should be 16 by 16. The GetImage method of a ToolboxBitmapAttribute object can return the small 16 by 16 image or a large 32 by 32 image that it creates by scaling the small image.
The following code example demonstrates how to use the ToolboxBitmapAttribute class to set stop.bmp as the toolbox icon for the StopSignControl. This example assumes the existence of a 16-by-16-pixel bitmap named stop.bmp at c:\.
<System.Drawing.ToolboxBitmap("c:\stop.bmp")> _ Public Class StopSignControl Inherits System.Windows.Forms.UserControl Friend WithEvents Label1 As System.Windows.Forms.Label Friend WithEvents Button1 As System.Windows.Forms.Button Public Sub New() MyBase.New() Me.Label1 = New System.Windows.Forms.Label Me.Button1 = New System.Windows.Forms.Button Me.Label1.Font = New System.Drawing.Font("Microsoft Sans Serif", _ 12.0F, System.Drawing.FontStyle.Regular, _ System.Drawing.GraphicsUnit.Point, CType(0, Byte)) Me.Label1.ForeColor = System.Drawing.Color.Red Me.Label1.Location = New System.Drawing.Point(24, 56) Me.Label1.Name = "Label1" Me.Label1.TabIndex = 0 Me.Label1.Text = "Stop!" Me.Label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter Me.Button1.Enabled = False Me.Button1.Location = New System.Drawing.Point(56, 88) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(40, 32) Me.Button1.TabIndex = 1 Me.Button1.Text = "stop" Me.Controls.Add(Me.Button1) Me.Controls.Add(Me.Label1) Me.Name = "StopSignControl" End Sub Private Sub StopSignControl_MouseEnter(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles MyBase.MouseEnter Label1.Text.ToUpper() Label1.Font = New System.Drawing.Font(Label1.Font.FontFamily, _ 14.0F, System.Drawing.FontStyle.Bold) Button1.Enabled = True End Sub Private Sub StopSignControl_MouseLeave(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles MyBase.MouseLeave Label1.Text.ToLower() Label1.Font = New System.Drawing.Font(Label1.Font.FontFamily, 12.0F, _ System.Drawing.FontStyle.Regular) Button1.Enabled = False End Sub End Class
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.