如何启动一个程序并且等待程序结束？

[突击召唤师]

我知道可以用Shell启动程序，怎么才能等待程序结束呢？

[NistCK]

Option Explicit

Type STARTUPINFO
CB As Long
lpReserved As String
lpDesktop As String
lpTitle As String
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type

Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessID As Long
dwThreadID As Long
End Type

Global Const NORMAL_PRIORITY_CLASS = &H20&
Global Const INFINITE = -1&
Declare Function CloseHandle Lib "kernel32" (hObject As Long) As Boolean
Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Declare Function CreateProcessA Lib "kernel32" (ByVal lpApplicationName As Long, ByVal lpCommandLine As String, ByVal lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long


Public Sub ShellAndWait(cmdline$, Optional bWait As Boolean = True)
Dim NameOfProc As PROCESS_INFORMATION
Dim NameStart As STARTUPINFO
Dim X As Long

On Error Resume Next
NameStart.CB = Len(NameStart)
X = CreateProcessA(0&, cmdline$, 0&, 0&, 1&, NORMAL_PRIORITY_CLASS, 0&, 0&, NameStart, NameOfProc)
If bWait Then
X = WaitForSingleObject(NameOfProc.hProcess, INFINITE) ' INFINITE: 无限等待!
End If
X = CloseHandle(NameOfProc.hProcess)
End Sub

[duoduolao]

不用那么麻烦的，用api的两个函数就可以了。下面是我用delphi写的，你用vb转一下吧，主要是用到了api的ShellExecuteEx(@ShExecInfo);WaitForSingleObject(ShExecInfo.hProcess,INFINITE);这两个过程。

ShExecInfo.cbSize:= sizeof(SHELLEXECUTEINFO);
ShExecInfo.fMask:= SEE_MASK_NOCLOSEPROCESS;
//ShExecInfo.Wnd:= HWND;
ShExecInfo.lpVerb:= nil;
ShExecInfo.lpFile:=Pchar(LocalPath+'\'+ListLocalFile.Items[ListBox1.ItemIndex]);
//ShExecInfo.lpFile:=('c:\test.ini');
ShExecInfo.lpParameters:='';
ShExecInfo.lpDirectory:= nil;
ShExecInfo.nShow:=SW_SHOW;
ShExecInfo.hInstApp :=0;
ShellExecuteEx(@ShExecInfo);
WaitForSingleObject(ShExecInfo.hProcess,INFINITE);

[duoduolao]

对了，要说明一下，这两个过程对word特别慢，就是说当word编辑结束后，它还要等好久才退出，不知道为什么，对其他程序都没问题。