异形窗口.vb

Visual Basic.NET应用编程150例

Public Class SForm
    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

    '窗体重写处置以清理组件列表。
    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。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(SForm))
        '
        'SForm
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.BackColor = System.Drawing.Color.FromArgb(CType(224, Byte), CType(224, Byte), CType(224, Byte))
        Me.BackgroundImage = CType(resources.GetObject("$this.BackgroundImage"), System.Drawing.Bitmap)
        Me.ClientSize = New System.Drawing.Size(264, 165)
        Me.ControlBox = False
        Me.Name = "SForm"
        Me.Text = "异形窗口"

    End Sub

#End Region

    Private Sub SForm_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles MyBase.Click
        Dim h1, h2, h3, h4, h5, myhwnd, tcms, temp As Integer
        h1 = CreateEllipticRgn(40, 10, 200, 175)

        h2 = CreateEllipticRgn(60, 50, 100, 90)
        h3 = CreateEllipticRgn(140, 50, 180, 90)
        '创建将要减去的两个圆形区域

        h4 = CreateEllipticRgn(5, 37, 50, 87)
        h5 = CreateEllipticRgn(190, 37, 235, 87)
        '创建将要加上的两个圆形区域

        myhwnd = GetActiveWindow()
        '取得窗口的句柄
        temp = CombineRgn(h1, h1, h2, RGN_DIFF)
        temp = CombineRgn(h1, h1, h3, RGN_DIFF)
        temp = CombineRgn(h1, h1, h4, RGN_OR)
        temp = CombineRgn(h1, h1, h5, RGN_OR)
        '进行区域合并
        Call SetWindowRgn(myhwnd, h1, True)
        '设置窗口形状
    End Sub
End Class