C / C++ / MFC

void CServicesDlg::OnBstop() <br />
{<br />
	TRACE("Services::OnBstop\n");<br />
	<br />
	DWORD dwError;<br />
	// get service information<br />
	int nSel = m_ctlListServices.GetSelectionMark();<br />
<br />
	if(nSel == -1)<br />
	{<br />
		return;<br />
	}<br />
	else<br />
	{<br />
		TCHAR szService[BUFF_LEN];<br />
		// get the text of second column<br />
		m_ctlListServices.GetItemText(nSel, 1, szService, BUFF_LEN);<br />
<br />
		SC_HANDLE hSCM = OpenSCManager(m_strPCName, NULL, SC_MANAGER_ALL_ACCESS);<br />
		if(hSCM == NULL)<br />
		{<br />
			dwError = GetLastError();<br />
			ErrorDescription(dwError);<br />
			AfxMessageBox("OpenSCManager failed");<br />
			TRACE("Services:hSCM is NULL\n");<br />
			return;<br />
		}<br />
		SC_HANDLE hService = OpenService(hSCM, szService, SERVICE_ALL_ACCESS);<br />
		if(hService == NULL)<br />
		{<br />
			dwError = GetLastError();<br />
			ErrorDescription(dwError);<br />
			AfxMessageBox("OpenSCManager failed");<br />
			TRACE("Services:hService is NULL\n");<br />
			return;<br />
		}<br />
<br />
		// stop service<br />
		if(ControlService(hService,SERVICE_CONTROL_STOP,NULL)==0)<br />
		{<br />
			dwError = GetLastError();<br />
			ErrorDescription(dwError);<br />
		}<br />
		// refresh<br />
		OnBrefresh();<br />
<br />
		CloseServiceHandle(hService);<br />
		CloseServiceHandle(hSCM);<br />
	}		<br />
}

unsigned short short_exch(const unsigned short a)
{
    // 0x1234 -> 0x3412
    return (a << 8) + (a >> 8);
};


unsigned long long_exch(unsigned long a)
{
    // 0x12345678 -> 0x78563412

    unsigned long t = a&0xff;
    a >>= 8;
    t <<= 8;
    t += a&0xff;

    a >>= 8;
    t <<= 8;
    t += a&0xff;

    a >>= 8;
    t <<= 8;

    return t + a;
};