SystemIcons.Question, SystemIcons.Warning, SystemIcons.WinLogo : SystemIcons « GUI « VB.Net Tutorial

SystemIcons.Question, SystemIcons.Warning, SystemIcons.WinLogo
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()

        'This call is required by the Windows Form Designer.

        '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
            End If
        End If
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.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.ComponentModel.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, _
        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)
    End Sub

    Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize
    End Sub
End Class

14.89.1.SystemIcons.Application, SystemIcons.Asterisk, SystemIcons.ErrorSystemIcons.Application, SystemIcons.Asterisk, SystemIcons.Error
14.89.2.SystemIcons.Exclamation, SystemIcons.Hand, SystemIcons.InformationSystemIcons.Exclamation, SystemIcons.Hand, SystemIcons.Information
14.89.3.SystemIcons.Question, SystemIcons.Warning, SystemIcons.WinLogoSystemIcons.Question, SystemIcons.Warning, SystemIcons.WinLogo