ShellExecute 中的 cmd 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，没有其他任何反应。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

切换字符导致了问题。它在开关字符从 \c 更改为 /c 时起作用。

表格

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

到

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

Answer 2

经过反复试验才找到最佳方法，所以我想分享一下 my solution。抛开我使用异步调用的建议，这是我的 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;
}

ShellExecute 中的 cmd 命令

cmd commands in ShellExecute

c++

visual-c++

cmd

shellexecute