C / C++ / MFC

e-DJ wrote:

I want to create a new class derived from CTime.

SERVICE_STATUS_HANDLE glb_sshStatusHandle;
SERVICE_STATUS        glb_ssStatus;

VOID WINAPI MMServiceMain (DWORD dwArgc, LPTSTR *lpszArgv);

DWORD WINAPI MMServiceControl (DWORD dwCtrlCode, DWORD dwEventType,
                               LPVOID lpEventData, LPVOID lpContext);

int _tmain (int argc, TCHAR* argv[], TCHAR* envp[])
{
    SERVICE_TABLE_ENTRY dispatchTable[] = {
        { "MMService", (LPSERVICE_MAIN_FUNCTION) MMServiceMain},
        { NULL, NULL} };

    StartServiceCtrlDispatcher (dispatchTable);
    glb_ssStatus.dwCheckPoint = 0;
    return 0;
}

void WINAPI MMServiceMain (DWORD dwArgc, LPTSTR *lpszArgv)
{
    // entries that never change
    glb_ssStatus.dwServiceType             = SERVICE_WIN32_OWN_PROCESS;
    glb_ssStatus.dwServiceSpecificExitCode = 0;

    // register our service control handler
    glb_sshStatusHandle = RegisterServiceCtrlHandlerEx (
                 "MMService", MMServiceControl, NULL);

    // report the status to the service control manager
    glb_ssStatus.dwControlsAccepted = 0;
    glb_ssStatus.dwCurrentState     = SERVICE_START_PENDING;
    glb_ssStatus.dwWin32ExitCode    = NO_ERROR;
    glb_ssStatus.dwWaitHint         = 5000;
    glb_ssStatus.dwCheckPoint       = glb_ssStatus.dwCheckPoint++;
    SetServiceStatus (glb_sshStatusHandle, &glb_ssStatus);

    // initialize
    if (!Init ()) {
        glb_ssStatus.dwCurrentState  = SERVICE_STOPPED;
        glb_ssStatus.dwWin32ExitCode = NO_ERROR;
        glb_ssStatus.dwWaitHint      = 0;
        glb_ssStatus.dwCheckPoint    = glb_ssStatus.dwCheckPoint++;
        SetServiceStatus (glb_sshStatusHandle, &glb_ssStatus);
        return;
    }

    // report that we are up and running
    glb_ssStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
    glb_ssStatus.dwCurrentState     = SERVICE_RUNNING;
    glb_ssStatus.dwWin32ExitCode    = NO_ERROR;
    glb_ssStatus.dwWaitHint         = 0;
    glb_ssStatus.dwCheckPoint       = glb_ssStatus.dwCheckPoint++;
    SetServiceStatus (glb_sshStatusHandle, &glb_ssStatus);

    // Main loop for the service
    Run ();

    // all done
    glb_ssStatus.dwCurrentState  = SERVICE_STOPPED;
    glb_ssStatus.dwWin32ExitCode = NO_ERROR;
    glb_ssStatus.dwWaitHint      = 0;
    glb_ssStatus.dwCheckPoint    = glb_ssStatus.dwCheckPoint++;
    SetServiceStatus (glb_sshStatusHandle, &glb_ssStatus);
    return;
}

DWORD WINAPI MMServiceControl (DWORD dwCtrlCode, DWORD dwEventType,
                               LPVOID lpEventData, LPVOID lpContext)
{
    if (dwCtrlCode == SERVICE_CONTROL_STOP) {
        glb_ssStatus.dwCurrentState  = SERVICE_STOP_PENDING;
        glb_ssStatus.dwWin32ExitCode = NO_ERROR;
        glb_ssStatus.dwWaitHint      = 0;
        glb_ssStatus.dwCheckPoint    = glb_ssStatus.dwCheckPoint++;
        SetServiceStatus (glb_sshStatusHandle, &glb_ssStatus);

        SetEvent (hStopEvent);
        return NO_ERROR;
    }
    else
        return ERROR_CALL_NOT_IMPLEMENTED;
}

bool Init ()
{
    hStopEvent = CreateEvent (NULL, TRUE, FALSE, NULL);
    return true;
}

void Run ()
{
    while (WaitForSingleObject (hStopEvent, 1) != WAIT_OBJECT_0)
    {
        // do your work - check the event if it is long processing
    }

    CloseHandle (hStopEvent);
    return;
}

prithaa wrote:

But If I have a template class B whose type is A* then
while initializing the template class B the constructor A() has to be called.

template <class T>
class B
{
...
...

T* m_Object;
};

B<A> classB;

mo_nica881 wrote:

DWORD dw=SetPrinterDataEx(hPrinter,"PrinterDriverData","monica",REG_BINARY,(PBYTE)p,1);

mo_nica881 wrote:

what is meaning of '5 value of dw'.

A::A()
{
  myint = new int;
}

myint = new int;