VB.Net Tutorial/GUI/ColorDialog

ColorDialog: Named Color or R G B value

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ColorDialogNamedColorRGB
   public Shared Sub Main
        Application.Run(New Form1)
   End Sub
End class
Public Class Form1
    Private Sub ActChange_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ActChange.Click
        ColorSelector.Color = ColorDisplay.BackColor
        If (ColorSelector.ShowDialog() = Windows.Forms.DialogResult.OK) Then
            ColorDisplay.BackColor = ColorSelector.Color
            If (ColorSelector.Color.IsNamedColor = True) Then
                ColorName.Text = ColorSelector.Color.Name
            Else
                ColorName.Text = "R" & ColorSelector.Color.R & " G" & ColorSelector.Color.G & " B" & ColorSelector.Color.B
            End If
        End If
    End Sub
End Class

<Global.Microsoft.VisualBasic.rupilerServices.DesignerGenerated()> _
Partial Class Form1
    Inherits System.Windows.Forms.Form
    "Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing AndAlso components IsNot Nothing Then
            components.Dispose()
        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()
        Me.ColorDisplay = New System.Windows.Forms.PictureBox
        Me.ActChange = New System.Windows.Forms.Button
        Me.Label1 = New System.Windows.Forms.Label
        Me.ColorName = New System.Windows.Forms.Label
        Me.ColorSelector = New System.Windows.Forms.ColorDialog
        CType(Me.ColorDisplay, System.ruponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        "
        "ColorDisplay
        "
        Me.ColorDisplay.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.ColorDisplay.Location = New System.Drawing.Point(88, 24)
        Me.ColorDisplay.Name = "ColorDisplay"
        Me.ColorDisplay.Size = New System.Drawing.Size(128, 64)
        Me.ColorDisplay.TabIndex = 0
        Me.ColorDisplay.TabStop = False
        "
        "ActChange
        "
        Me.ActChange.Location = New System.Drawing.Point(144, 96)
        Me.ActChange.Name = "ActChange"
        Me.ActChange.Size = New System.Drawing.Size(75, 23)
        Me.ActChange.TabIndex = 1
        Me.ActChange.Text = "Change..."
        Me.ActChange.UseVisualStyleBackColor = True
        "
        "Label1
        "
        Me.Label1.AutoSize = True
        Me.Label1.Location = New System.Drawing.Point(8, 8)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(74, 13)
        Me.Label1.TabIndex = 2
        Me.Label1.Text = "Current Color: "
        "
        "ColorName
        "
        Me.ColorName.AutoSize = True
        Me.ColorName.Location = New System.Drawing.Point(86, 8)
        Me.ColorName.Name = "ColorName"
        Me.ColorName.Size = New System.Drawing.Size(69, 13)
        Me.ColorName.TabIndex = 3
        Me.ColorName.Text = "Not Selected"
        "
        "Form1
        "
        Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
        Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
        Me.ClientSize = New System.Drawing.Size(228, 128)
        Me.Controls.Add(Me.ColorName)
        Me.Controls.Add(Me.Label1)
        Me.Controls.Add(Me.ActChange)
        Me.Controls.Add(Me.ColorDisplay)
        Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle
        Me.MaximizeBox = False
        Me.MinimizeBox = False
        Me.Name = "Form1"
        Me.Text = "Select Color"
        CType(Me.ColorDisplay, System.ruponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)
        Me.PerformLayout()
    End Sub
    Friend WithEvents ColorDisplay As System.Windows.Forms.PictureBox
    Friend WithEvents ActChange As System.Windows.Forms.Button
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents ColorName As System.Windows.Forms.Label
    Friend WithEvents ColorSelector As System.Windows.Forms.ColorDialog
End Class

Color Dialog with custom color settings

Imports System.IO
Imports System.Windows.Forms
public class ColorDialogWithCustomColorSettings
   public Shared Sub Main
      Dim ColorDB As New ColorDialog()
        ColorDB.CustomColors = New Integer() _
        {&HFF00FF, &HFF0000, &HF0F0F0, &HF0F0F0, _
         &HAAAAAA, &HBBBBBB, &HCCCCCC, &HDDDDDD, _
         &HEEEEEE, &HAAA0A0, &HBBB0B0, &HCCC0C0, _
         &HDDD0D0, &H111111, &H333333, &H888888}
        If (ColorDB.ShowDialog() = DialogResult.OK) Then
            Console.WriteLine(ColorDB.Color)
        End If
   End Sub
End class

Set ColorDialog properties

Imports System.Drawing
Imports System.Windows.Forms
public class ColorDialogProperty
   public Shared Sub Main
        Dim ColorDialog1 As ColorDialog = New System.Windows.Forms.ColorDialog
        Dim objSelectedColor As Color
        "Dim aryColors() As Integer = {222663, 35453, 7888}
        Dim aryColors() As Integer = {Math.Abs(Color.Gray.ToArgb), _
              Math.Abs(Color.Navy.ToArgb), _
              Math.Abs(Color.Teal.ToArgb)}
        With ColorDialog1
            .Color = Color.Blue
            ".AllowFullOpen = False
            .FullOpen = True
            .AnyColor = True
            .CustomColors = aryColors
            .SolidColorOnly = True
        End With
        If ColorDialog1.ShowDialog = Windows.Forms.DialogResult.OK Then
            Console.WriteLine(ColorDialog1.Color)
        End If
   End Sub
End class

Use Color Dialog to set Color

Imports System.Drawing
Imports System.Drawing.Drawing2D
Imports System.Windows.Forms
public class ColorDialogSetForgroundBackgroundColor
   public Shared Sub Main
        Application.Run(New FrmColorDialogTest)
   End Sub
End class
Public Class FrmColorDialogTest
   Inherits System.Windows.Forms.Form
   Friend WithEvents cmdBackgroundButton As Button
   Friend WithEvents cmdTextButton As Button
#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.Container
   "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()
      Me.cmdBackgroundButton = New System.Windows.Forms.Button()
      Me.cmdTextButton = New System.Windows.Forms.Button()
      Me.SuspendLayout()
      "
      "cmdBackgroundButton
      "
      Me.cmdBackgroundButton.Location = New System.Drawing.Point(16, 16)
      Me.cmdBackgroundButton.Name = "cmdBackgroundButton"
      Me.cmdBackgroundButton.Size = New System.Drawing.Size(160, 24)
      Me.cmdBackgroundButton.TabIndex = 0
      Me.cmdBackgroundButton.Text = "Change Background Color"
      "
      "cmdTextButton
      "
      Me.cmdTextButton.Location = New System.Drawing.Point(16, 56)
      Me.cmdTextButton.Name = "cmdTextButton"
      Me.cmdTextButton.Size = New System.Drawing.Size(160, 24)
      Me.cmdTextButton.TabIndex = 1
      Me.cmdTextButton.Text = "Change Text Color"
      "
      "FrmColorDialogTest
      "
      Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
      Me.ClientSize = New System.Drawing.Size(192, 93)
      Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.cmdTextButton, Me.cmdBackgroundButton})
      Me.Name = "FrmColorDialogTest"
      Me.Text = "Using Color Dialogs"
      Me.ResumeLayout(False)
   End Sub
#End Region
   Dim colorBox As ColorDialog = New ColorDialog()
   Private Sub cmdTextButton_Click(ByVal sender As System.Object, _
      ByVal e As System.EventArgs) Handles cmdTextButton.Click
      Dim result As DialogResult
      result = colorBox.ShowDialog()
      If result = DialogResult.Cancel Then
         Return
      End If
      cmdBackgroundButton.ForeColor = colorBox.Color
      cmdTextButton.ForeColor = colorBox.Color
   End Sub 
   Private Sub cmdBackgroundButton_Click( _
      ByVal sender As System.Object, _
      ByVal e As System.EventArgs) _
      Handles cmdBackgroundButton.Click
      Dim result As DialogResult
      colorBox.FullOpen = True
      result = colorBox.ShowDialog()
      If result = DialogResult.Cancel Then
         Return
      End If
      Me.BackColor = colorBox.Color
   End Sub
End Class