ShellExecute中的命令

Question

我正在尝试从elevated(has admin privileage) c++ application在command prompt中执行netsh winsock reset catalog命令。

HINSTANCE retVal = ShellExecute(NULL, "open", "cmd", "\c netsh winsock reset catalog > CUninstall.log", NULL, SW_NORMAL); 

它只是打开命令提示符，不会发生任何其他事情。我试过了

HINSTANCE retVal = ShellExecute(NULL, "runas", "cmd", "\c netsh winsock reset catalog > CUninstall.log", NULL, SW_NORMAL); 

和

HINSTANCE retVal = ShellExecute(NULL, "open", "cmd", " netsh winsock reset catalog > CUninstall.log", NULL, SW_NORMAL); 

Answer 1

开关字符导致了问题。当开关字符从\c更改为/c时，它会起作用。

表格

HINSTANCE retVal = ShellExecute(NULL, "open", "cmd", "\c netsh winsock reset catalog > CUninstall.log", NULL, SW_NORMAL);

至

HINSTANCE retVal = ShellExecute(NULL, "open", "cmd", "/c netsh winsock reset catalog > CUninstall.log", NULL, SW_NORMAL);

Answer 2

为了找到最优的方法，我进行了一些试验和错误，所以我想分享一下my solution。把我使用异步调用的建议放在一边，下面是我的DoRun()函数：

BOOL DoRun(WCHAR *command)
{
    BOOL Result = FALSE;
    DWORD retSize;
    LPTSTR pTemp = NULL;
    TCHAR Command[BUFSIZE] = L"";
    if (!(DeleteFile(RESULTS_FILE)))
    {
        //return L"Can't delete previous results";
    }
    _tcscpy_s(Command, L"/C ");
    _tcscat_s(Command, command);
    _tcscat_s(Command, L" >");
    _tcscat_s(Command, RESULTS_FILE);
    wprintf(L"Calling:\n%s\n", Command);
    Result = (BOOL) ShellExecute(GetActiveWindow(), L"OPEN", L"cmd", Command, NULL, 0L);
    if(!Result)
    {
        retSize = FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
            FORMAT_MESSAGE_FROM_SYSTEM |
            FORMAT_MESSAGE_ARGUMENT_ARRAY,
            NULL,
            GetLastError(),
            LANG_NEUTRAL,
            (LPTSTR)&pTemp,
            0,
            NULL);
        MessageBox(NULL,pTemp,L"Error",MB_OK);
    }
    return Result;
}