form1.frm

很好的教程原代码！

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3195
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "改变Windows墙纸"
      Height          =   615
      Left            =   1440
      TabIndex        =   0
      Top             =   1560
      Width           =   1815
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
' 函数声明
Private Declare Function SystemParametersInfo Lib "user32" Alias "SystemParametersInfoA" _
    (ByVal uAction As Long, _
    ByVal uParam As Long, _
    ByVal lpvParam As Any, _
    ByVal fuWinIni As Long _
    ) As Long
    '常量声明
Const SPI_SETDESKWALLPAPER = 20
Const SPIF_UPDATEINIFILE = &H1

Private Sub Command1_Click()
' 把桌面图片设为 c:\windows\setup.bmp
Call SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, _
"c:\windows\setup.bmp", SPIF_UPDATEINIFILE)
End Sub