vb6实现等待shell结束

最新推荐文章于 2024-06-06 14:18:15 发布

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本文介绍了一种封装shell命令的方法，使程序能够执行shell命令并在shell命令完全关闭后继续执行后续操作。通过使用Windows API函数OpenProcess、GetExitCodeProcess和CloseHandle，可以实现对shell进程的监控和等待。

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封装shell命令，使程序执行shell命令时等待shell关闭继续执行

Option Explicit
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal HProcess As Long, lpExitCode As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Const PROCESS_QUERY_INFORMATION = &H400
Const STILL_ALIVE = &H103

Public Sub WaitForSell(ByVal Pid As Long)
    Dim HProcess, ExitCode As Long
    HProcess = OpenProcess(PROCESS_QUERY_INFORMATION, 0, Pid)
    Do
        Call GetExitCodeProcess(HProcess, ExitCode)
        DoEvents
    Loop While ExitCode = STILL_ALIVE
    Call CloseHandle(HProcess)
End Sub

Public Sub MyShell(ByVal PathName As String, Optional WindowStyle As VbAppWinStyle = vbNormalFocus)
    WaitForSell Shell(PathName, WindowStyle)
End Sub