如何移动表单

Option Explicit

Dim fhwnd As Long

'left top Width Height
Private Sub CmdDown_Click()
Dim rtn As Long, MoveW As Long, x1 As Long, y1 As Long
    rtn = GetWindowRect(fhwnd, Rectan)
    x1 = Rectan.Bottom + 10
    MoveW = MoveWindow(fhwnd, x1, y1, Rectan.Right, Rectan.Top, True)
End Sub

Private Sub CmdLeft_Click()
Dim rtn As Long, MoveW As Long
    rtn = GetWindowRect(fhwnd, Rectan)
'    MoveW = MoveWindow(fhwnd, x1, y1, wid, het, True)
End Sub

Private Sub CmdRight_Click()
Dim rtn As Long, MoveW As Long
    rtn = GetWindowRect(fhwnd, Rectan)
'    MoveW = MoveWindow(fhwnd, x1, y1, wid, het, True)
End Sub

Private Sub CmdUp_Click()
Dim rtn As Long, MoveW As Long
    rtn = GetWindowRect(fhwnd, Rectan)
'    MoveW = MoveWindow(fhwnd, x1, y1, wid, het, True)
End Sub

Private Sub Command5_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
    Timer1.Enabled = Not Timer1.Enabled
End Sub

Private Sub Command5_MouseUp(Button As Integer, Shift As Integer, x As Single, y As Single)
    Timer1.Enabled = Not Timer1.Enabled
End Sub

Private Sub Form_Load()
    Me.Height = CmdDown.Top + CmdDown.Height
    Me.Width = CmdRight.Left + CmdRight.Width
    SetWindowPos Me.hwnd, -1, 0, 0, 0, 0, 3
    Call GetFlowHwnd
End Sub

Private Sub Frame1_MouseDown(Button As Integer, Shift As Integer, x As Single, y As Single)
    If Button = 2 Then
        PopupMenu Menu
    End If
End Sub

Private Sub Timer1_Timer()
Dim P As POINT
    GetCursorPos P
    Me.Left = P.x * 15
    Me.Top = P.y * 15
End Sub

Private Sub bye_Click()
    Unload Me
End Sub

Private Sub GetFlowHwnd()
    fhwnd = FindWindow("ThunderRT6FormDC", "Project Flow")
End Sub