form1.frm

vb 的例子

VERSION 5.00
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   3825
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5550
   LinkTopic       =   "Form1"
   ScaleHeight     =   3825
   ScaleWidth      =   5550
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton Command1 
      Caption         =   "Command1"
      Height          =   495
      Left            =   3000
      TabIndex        =   0
      Top             =   3120
      Width           =   1695
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Declare Function GetWindowsDirectory _
Lib "kernel32" Alias "GetWindowsDirectoryA" _
(ByVal lpBuffer As String, ByVal nSize As Long) As Long


Private Sub Command1_Click()
    Dim strPath As String * 50
    Dim lngStrLen As Long
    lngStrLen = GetWindowsDirectory(strPath, 50)
    Print "Windows安装位置："; Left(strPath, lngStrLen)
End Sub