form1.vb

Visual.Basic.NET实用编程百例-47.6M.zip

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写 dispose 以清理组件列表。
    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

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents CheckBox1 As System.Windows.Forms.CheckBox
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.CheckBox1 = New System.Windows.Forms.CheckBox
        Me.SuspendLayout()
        '
        'CheckBox1
        '
        Me.CheckBox1.Location = New System.Drawing.Point(88, 96)
        Me.CheckBox1.Name = "CheckBox1"
        Me.CheckBox1.Size = New System.Drawing.Size(128, 24)
        Me.CheckBox1.TabIndex = 1
        Me.CheckBox1.Text = "隐藏和显示标题栏"
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.CheckBox1)
        Me.Name = "Form1"
        Me.Text = "隐藏和显示标题栏"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Function TitleBar(ByVal bState As Boolean) As Object
        Dim lStyle As Integer
        Dim tR As RECT

        GetWindowRect(Me.Handle.ToInt32, tR)
        '得到窗体的区域保存在tr中
        lStyle = GetWindowLong(Me.Handle.ToInt32, GWL_STYLE)
        '得到窗体目前的风格设置
        If (bState) Then
            '如果显示标题栏
            Me.Text = Me.Tag
            '设置Caption属性
            If Me.ControlBox Then
                lStyle = lStyle Or WS_SYSMENU
                '设置显示系统菜单
            End If
            If Me.MaximizeBox Then
                lStyle = lStyle Or WS_MAXIMIZEBOX
                '设置显示最大化按钮
            End If
            If Me.MinimizeBox Then
                lStyle = lStyle Or WS_MINIMIZEBOX
                '设置显示最小化按钮
            End If
            If Me.Text <> "" Then
                lStyle = lStyle Or WS_CAPTION
                '显示窗口的标题
            End If
        Else
            '如果隐藏标题栏
            Me.Tag = Me.Text
            '将窗口标题保存到窗口的tag属性中
            Me.Text = ""
            '将窗口标题设置为空字符串
            lStyle = lStyle And Not WS_SYSMENU
            '隐藏系统菜单
            lStyle = lStyle And Not WS_MAXIMIZEBOX
            '隐藏最大化按钮
            lStyle = lStyle And Not WS_MINIMIZEBOX
            '隐藏最小化按钮
            lStyle = lStyle And Not WS_CAPTION
            '隐藏标题
        End If
        SetWindowLong(Me.Handle.ToInt32, GWL_STYLE, lStyle)
        '设置窗体风格
        SetWindowPos(Me.Handle.ToInt32, 0, tR.Left_Renamed, tR.Top, tR.Right_Renamed - tR.Left_Renamed, tR.Bottom - tR.Top, Module1.ESetWindowPosStyles.SWP_NOREPOSITION Or Module1.ESetWindowPosStyles.SWP_NOZORDER Or Module1.ESetWindowPosStyles.SWP_FRAMECHANGED)
        '保证窗口具有相同的大小
    End Function

    Private Sub CheckBox1_CheckStateChanged(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles CheckBox1.CheckStateChanged
        If CheckBox1.CheckState = 1 Then
            TitleBar(False)
        Else
            TitleBar(True)
        End If
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class