vb中如何修改屏幕分辨率

我有个2000下好用的 不知道XP好用不 你试一下吧！~

'模块代码
Option Explicit

Declare Function GetDeviceCaps Lib "gdi32" (ByVal hdc As Long, _
ByVal nIndex As Long) As Long

Public Declare Function ChangeDisplaySettings Lib "user32.dll" Alias "ChangeDisplaySettingsA" _
(ByRef lpDevMode As DEVMODE, ByVal dwFlags As Long) As Long

Public Declare Function EnumDisplaySettings Lib "user32.dll" Alias "EnumDisplaySettingsA" (ByVal _
lpszDeviceName As String, ByVal iModeNum As Long, ByRef lpDevMode As DEVMODE) As Long

Const DM_PELSHEIGHT As Long = &H100000
Const DM_PELSWIDTH As Long = &H80000
Const DM_BITSPERPEL As Long = &H40000
Const DM_DISPLAYFREQUENCY As Long = &H400000
Public Const HORZRES = 8
Public Const VHORZRES = 10
Public Const VREFRESH = 116

Public Const BITSPIXEL = 12
Const CCHDEVICENAME As Long = 32
Const CCHFORMNAME As Long = 32
Const CDS_TEST = &H4

Private Type DEVMODE
dmDeviceName As String * CCHDEVICENAME
dmSpecVersion As Integer
dmDriverVersion As Integer
dmSize As Integer
dmDriverExtra As Integer
dmFields As Long
dmOrientation As Integer
dmPaperSize As Integer
dmPaperLength As Integer
dmPaperWidth As Integer
dmScale As Integer
dmCopies As Integer
dmDefaultSource As Integer
dmPrintQuality As Integer
dmColor As Integer
dmDuplex As Integer
dmYResolution As Integer
dmTTOption As Integer
dmCollate As Integer
dmFormName As String * CCHFORMNAME
dmUnusedPadding As Integer
dmBitsPerPel As Integer
dmPelsWidth As Long
dmPelsHeight As Long
dmDisplayFlags As Long
dmDisplayFrequency As Long
End Type

Public Function SetDisplaymode(LngWidth As Long, LngHeight As Long, LngFrequency As Long) As Long
Dim NewDevmode As DEVMODE
Dim lngP As Long
EnumDisplaySettings 0&, 0&, NewDevmode

With NewDevmode
.dmFields = DM_PELSHEIGHT Or DM_PELSWIDTH Or DM_BITSPERPEL Or DM_DISPLAYFREQUENCY
.dmPelsWidth = LngWidth
.dmPelsHeight = LngHeight
If LngFrequency <> 0 Then
.dmDisplayFrequency = LngFrequency
End If
End With

SetDisplaymode = ChangeDisplaySettings(NewDevmode, 1)
End Function

'窗体代码
Private Sub Form_Load()
SetDisplaymode 1280, 1024, 0
End Sub