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这个功能在VB6中，需要借助于API函数才能实现。而在VB.net中，凭自己的功能就能实现。首先设置窗体的FormBorderStyle属性为none以去掉窗体的边框，然后在窗体上添加一个按钮。窗体中的代码如下：
Public Class Form1
Inherits System.Windows.Forms.Form
Private mouse_offset As Point
Private Sub form1_MouseDown(ByVal sender As Object, _
ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown
mouse_offset = New Point(e.X, e.Y)
End Sub
Private Sub form1_MouseMove(ByVal Sender As System.Object, _
ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove
'按住鼠标左右键均可拖动窗体
If e.Button = MouseButtons.Left Or e.Button = MouseButtons.Right Then
Dim mousePos As Point = Sender.findform().MousePosition
'获得鼠标偏移量
mousePos.Offset(-mouse_offset.X, -mouse_offset.Y)
'设置窗体随鼠标一起移动
Sender.findform().Location = mousePos
End If
End Sub
Private Sub BtnExit_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
'关闭窗体
Me.Close()
End Sub
End Class
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