vb中，怎么让程序界面在永远桌面的最前面

'窗体通用声明部分 Private Const MF_DISABLED = &H2 Private Const MF_BYPOSITION = &H400 Private Const HWND_TOPMOST = -1 Private Const HWND_BOTTOM = 1 Private Const HWND_NOTOPMOST = -2 Private Const SWP_NOSIZE = &H1 Private Const SWP_NOMOVE = &H2 Private Const SWP_NOZORDER = &H4 Private Const SWP_NOACTIVATE = &H10 Private Const SWP_SHOWWINDOW = &H40 Private Const SWP_HIDEWINDOW = &H80 Private Declare Function SetWindowPos Lib "user32" (ByVal hWnd As Long, ByVal hWndInsertAfter As Long, ByVal X As Long, ByVal Y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long Private Sub Command1_Click() SetWindowPos Me.hWnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOSIZE Or SWP_NOMOVE'总在前面 'SetWindowPos Me.hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE Or SWP_SHOWWINDOW Or SWP_NOSIZE Or SWP_NOMOVE'不在前面 End Sub