防止shell函数异步执行.frm

个人VB学习源码精选,自己学习时的一些编程小程序,希望对大家有帮助

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         =   "记事本"
      Height          =   375
      Left            =   960
      TabIndex        =   0
      Top             =   1140
      Width           =   1275
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Const PROCESS_QUERY_INFORMATION = &H400
Private Const STILL_ACTIVE = &H103
Dim strWinDir As String
Dim pidNotepad As Long
Dim hProcess As Long

Private Sub Command1_Click()
    Dim lngExitCode As Long
    strWinDir = Environ("windir")
    pidNotepad = Shell(strWinDir & "\notepad.exe", vbNormalFocus)
    hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, False, pidNotepad)
    Do
        GetExitCodeProcess hProcess, lngExitCode
        DoEvents
    Loop While lngExitCode = STILL_ACTIVE
    MsgBox "Hello"
End Sub