LPCWSTR stringToLPCWSTR(std::string orig)
{
        size_t size = orig.length();
        wchar_t *buffer = new wchar_t[size + 1];
        MultiByteToWideChar(CP_ACP, 0, orig.c_str(), size, buffer, size * sizeof(wchar_t));
        buffer[size] = 0;  //确保以 '\0' 结尾
        return buffer;
}



//通过进程名获取进程句柄
DWORD GetProcessHandle(LPCWSTR lpName)
{
    HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    if (INVALID_HANDLE_VALUE == hSnapshot)
    {
        return NULL;
    }
    PROCESSENTRY32 pe = { sizeof(pe) };
    BOOL fOk;
    for (fOk = Process32First(hSnapshot, &pe); fOk; fOk = Process32Next(hSnapshot, &pe))
    {
        if (!_tcscmp(pe.szExeFile, lpName))
        {
            CloseHandle(hSnapshot);
            return (pe.th32ProcessID);
        }
    }
    return NULL;

}


void __fastcall TForm3::btn1Click(TObject *Sender)
{
  DWORD lpid;
  string lname;
  lname = "PrMisAdg.exe" ;
  lpid = GetProcessHandle(stringToLPCWSTR(lname));
  sprintf(&lname[0],"%u",lpid);//dowrd  to string
  ShowMessage(lname.data());
}