VB.Net Tutorial/GUI/SystemIcons
SystemIcons.Application, SystemIcons.Asterisk, SystemIcons.Error
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Drawing.Imaging public class IconsDemo1
public Shared Sub Main Application.Run(New IconsForm) End Sub
End class Public Class IconsForm
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() components = New System.ruponentModel.Container() Me.Text = "IconsForm" End Sub
- End Region
Private Function GetIconName(ByVal i As Icon) As String Return Icon.ToString() End Function Private Sub IconsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width / 3 Dim height As Integer = Me.ClientRectangle.Height / 3 Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Far Dim icons As Icon() = New Icon() {SystemIcons.Application, _ SystemIcons.Asterisk, _ SystemIcons.Error} Dim i As Icon For Each i In icons Dim rect As Rectangle = New Rectangle(x, y, width, height) Dim iconRect As Rectangle = New Rectangle(x + (width - Icon.Width) / 2, y + (height - Icon.Height) / 2, Icon.Width, Icon.Height) g.DrawIconUnstretched(i, iconRect) g.DrawString(GetIconName(Icon), Me.Font, Brushes.Black, RectangleF.op_Implicit(rect), format) g.DrawRectangle(Pens.Black, rect) x = IIf(x > Me.ClientRectangle.Width - 2 * width, 0, x + width) y = IIf(x = 0, y + height, y) Next End Sub Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize Me.Invalidate() End Sub
End Class</source>
SystemIcons.Exclamation, SystemIcons.Hand, SystemIcons.Information
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Drawing.Imaging public class IconsDemo2
public Shared Sub Main Application.Run(New IconsForm) End Sub
End class Public Class IconsForm
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() components = New System.ruponentModel.Container() Me.Text = "IconsForm" End Sub
- End Region
Private Function GetIconName(ByVal i As Icon) As String Return Icon.ToString() End Function Private Sub IconsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width / 3 Dim height As Integer = Me.ClientRectangle.Height / 3 Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Far Dim icons As Icon() = New Icon() { SystemIcons.Exclamation, _ SystemIcons.Hand, _ SystemIcons.Information} Dim i As Icon For Each i In icons Dim rect As Rectangle = New Rectangle(x, y, width, height) Dim iconRect As Rectangle = New Rectangle(x + (width - Icon.Width) / 2, y + (height - Icon.Height) / 2, Icon.Width, Icon.Height) g.DrawIconUnstretched(i, iconRect) g.DrawString(GetIconName(Icon), Me.Font, Brushes.Black, RectangleF.op_Implicit(rect), format) g.DrawRectangle(Pens.Black, rect) x = IIf(x > Me.ClientRectangle.Width - 2 * width, 0, x + width) y = IIf(x = 0, y + height, y) Next End Sub Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize Me.Invalidate() End Sub
End Class</source>
SystemIcons.Question, SystemIcons.Warning, SystemIcons.WinLogo
<source lang="vbnet">Imports System.Drawing Imports System.Drawing.Drawing2D Imports System.Windows.Forms Imports System.Drawing.Imaging public class IconsDemo3
public Shared Sub Main Application.Run(New IconsForm) End Sub
End class Public Class IconsForm
Inherits System.Windows.Forms.Form
- Region " Windows Form Designer generated code "
Public Sub New() MyBase.New() "This call is required by the Windows Form Designer. InitializeComponent() "Add any initialization after the InitializeComponent() call End Sub "Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub "Required by the Windows Form Designer Private components As System.ruponentModel.IContainer "NOTE: The following procedure is required by the Windows Form Designer "It can be modified using the Windows Form Designer. "Do not modify it using the code editor. <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() components = New System.ruponentModel.Container() Me.Text = "IconsForm" End Sub
- End Region
Private Function GetIconName(ByVal i As Icon) As String Return Icon.ToString() End Function Private Sub IconsForm_Paint(ByVal sender As Object, ByVal e As PaintEventArgs) Handles MyBase.Paint Dim g As Graphics = e.Graphics Dim x As Integer = 0 Dim y As Integer = 0 Dim width As Integer = Me.ClientRectangle.Width / 3 Dim height As Integer = Me.ClientRectangle.Height / 3 Dim format As StringFormat = New StringFormat() format.Alignment = StringAlignment.Center format.LineAlignment = StringAlignment.Far Dim icons As Icon() = New Icon() { SystemIcons.Question, _ SystemIcons.Warning, _ SystemIcons.WinLogo} Dim i As Icon For Each i In icons Dim rect As Rectangle = New Rectangle(x, y, width, height) Dim iconRect As Rectangle = New Rectangle(x + (width - Icon.Width) / 2, y + (height - Icon.Height) / 2, Icon.Width, Icon.Height) g.DrawIconUnstretched(i, iconRect) g.DrawString(GetIconName(Icon), Me.Font, Brushes.Black, RectangleF.op_Implicit(rect), format) g.DrawRectangle(Pens.Black, rect) x = IIf(x > Me.ClientRectangle.Width - 2 * width, 0, x + width) y = IIf(x = 0, y + height, y) Next End Sub Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize Me.Invalidate() End Sub
End Class</source>