不通过标题栏移动窗体

     我们在设计程序时,需要隐藏程序的标题栏,但这样一来就给我们移动窗体带来不少的麻烦. 这时,必须要求我们编写代码来实现移动窗体的操作.
      以下是我通过用控件(图片框)的 mousedown 和 mouseup 事件的组合来实现.

Imports System.Windows.Forms.Cursors
Public Class Form1

    Public x, x1, x2 As Integer
    Public y, y1, y2 As Integer

    Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseDown
        x = Me.Left
        y = Me.Top
        x1 = e.X
        y1 = e.Y
        '当按下鼠标左键时，改变鼠标光标的形状
        If e.Button = Windows.Forms.MouseButtons.Left Then

            PictureBox1.Cursor = SizeAll
        End If
    End Sub

    Private Sub PictureBox1_MouseUp(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseUp
        Dim y3, x3 As Integer

        x2 = e.X
        y2 = e.Y
        ' 只有用左键才能够移动窗体
        If e.Button = Windows.Forms.MouseButtons.Left Then

            If x2 <> x1 Or y2 <> y1 Then
                x3 = x2 - x1
                Me.Left = x + x3

                y3 = y2 - y1
                Me.Top = y + y3
            End If

        End If
        '将鼠标光标恢复为默认

        PictureBox1.Cursor = [Default]

    End Sub
End Class