form1.vb

来自「Samples are organized by chapter, and th」· VB 代码 · 共 128 行

Public Class Form1
    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.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.
    Friend WithEvents lstColors As System.Windows.Forms.ListBox
    Friend WithEvents Label1 As System.Windows.Forms.Label
    Friend WithEvents lblBrightness As System.Windows.Forms.Label
    Friend WithEvents lblHue As System.Windows.Forms.Label
    Friend WithEvents lblSaturation As System.Windows.Forms.Label
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.lstColors = New System.Windows.Forms.ListBox()
        Me.Label1 = New System.Windows.Forms.Label()
        Me.lblBrightness = New System.Windows.Forms.Label()
        Me.lblHue = New System.Windows.Forms.Label()
        Me.lblSaturation = New System.Windows.Forms.Label()
        Me.SuspendLayout()
        '
        'lstColors
        '
        Me.lstColors.Location = New System.Drawing.Point(12, 40)
        Me.lstColors.Name = "lstColors"
        Me.lstColors.Size = New System.Drawing.Size(200, 238)
        Me.lstColors.TabIndex = 0
        '
        'Label1
        '
        Me.Label1.BackColor = System.Drawing.SystemColors.ActiveCaptionText
        Me.Label1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.Label1.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.Label1.Location = New System.Drawing.Point(12, 12)
        Me.Label1.Name = "Label1"
        Me.Label1.Size = New System.Drawing.Size(200, 20)
        Me.Label1.TabIndex = 1
        Me.Label1.Text = " Choose a Background Color:"
        '
        'lblBrightness
        '
        Me.lblBrightness.BackColor = System.Drawing.SystemColors.ActiveCaptionText
        Me.lblBrightness.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.lblBrightness.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.lblBrightness.Location = New System.Drawing.Point(268, 12)
        Me.lblBrightness.Name = "lblBrightness"
        Me.lblBrightness.Size = New System.Drawing.Size(136, 20)
        Me.lblBrightness.TabIndex = 2
        Me.lblBrightness.Text = " Brightness"
        '
        'lblHue
        '
        Me.lblHue.BackColor = System.Drawing.SystemColors.ActiveCaptionText
        Me.lblHue.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.lblHue.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.lblHue.Location = New System.Drawing.Point(268, 36)
        Me.lblHue.Name = "lblHue"
        Me.lblHue.Size = New System.Drawing.Size(136, 20)
        Me.lblHue.TabIndex = 3
        Me.lblHue.Text = " Hue"
        '
        'lblSaturation
        '
        Me.lblSaturation.BackColor = System.Drawing.SystemColors.ActiveCaptionText
        Me.lblSaturation.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle
        Me.lblSaturation.FlatStyle = System.Windows.Forms.FlatStyle.System
        Me.lblSaturation.Location = New System.Drawing.Point(268, 60)
        Me.lblSaturation.Name = "lblSaturation"
        Me.lblSaturation.Size = New System.Drawing.Size(136, 20)
        Me.lblSaturation.TabIndex = 4
        Me.lblSaturation.Text = " Saturation"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 14)
        Me.ClientSize = New System.Drawing.Size(436, 294)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.lblSaturation, Me.lblHue, Me.lblBrightness, Me.Label1, Me.lstColors})
        Me.Font = New System.Drawing.Font("Tahoma", 8.25!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
        Me.Name = "Form1"
        Me.Text = "Color Changer"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim ColorNames() As String
        ColorNames = System.Enum.GetNames(GetType(KnownColor))

        lstColors.Items.AddRange(ColorNames)
    End Sub

    Private Sub lstColors_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles lstColors.SelectedIndexChanged
        Dim SelectedColor As KnownColor
        SelectedColor = System.Enum.Parse(GetType(KnownColor), lstColors.Text)
        Me.BackColor = System.Drawing.Color.FromKnownColor(SelectedColor)

        lblBrightness.Text = " Brightness = " & Me.BackColor.GetBrightness.ToString()
        lblHue.Text = " Hue = " & Me.BackColor.GetHue.ToString()
        lblSaturation.Text = " Saturation = " & Me.BackColor.GetSaturation.ToString()
    End Sub

End Class