C / C++ / MFC

If I want to achive the SMTP protocol, how can I do

1-Sep-10 2:58

You may try to set an option via InternetSetOption[^]
(the INTERNET_OPTION_RECEIVE_TIMEOUT flag looks promising, but I never made a test).
Smile | :)

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yu-jian1-Sep-10 2:22

yu-jian

1-Sep-10 2:22

I know that if use the SMTP protocol, I should use the socket to create link with server.
And then
HELO SERVER
USER
PASS

but if I donot use the socket and I want to achieve the SMTP protocol , how should I do ?
Can someone give me suggestion?

Re: If I want to achive the SMTP protocol, how can I do

Emilio Garavaglia1-Sep-10 2:33

Emilio Garavaglia

1-Sep-10 2:33

Translate in to metaphor:
I know that to send a mail I have to plug to the network and then send it.
But if I don't use any network and I want to achieve the sending on the mail how should I do?

Frankly ... Or you use an SMTP service library (that use the socket internally, so it is not proper to say you're "not using socket") or ... try concentrate a lot, may be telepathy will work!

2 bugs found.
> recompile ...
65534 bugs found.
D'Oh! | :doh:

Re: If I want to achive the SMTP protocol, how can I do

CPallini1-Sep-10 2:42

Re: If I want to achive the SMTP protocol, how can I do

1-Sep-10 2:42

Pigeons are quite effective.
Smile | :)

Moak1-Sep-10 5:24

Moak

1-Sep-10 5:24

I'll try an answer: Write a socket client that implements at least RFC 5321 and RFC 4954, both protocols are typically needed to be able to send emails.

Alternatively use a networking library that offers an SMTP client/example (e.g. libcurl, PichatCore, QT), the code to send an email could look like this:

CClientSmtp client; 
client.SetRequestServer("mail.example.com", 25, "example.com"); 
client.SetRequestEnvelope("sender@example.com", "receipient@example.com"); 
client.SetRequestData("Subject:Test email\n\nHi! I am hungry, please send some pizza."); 
client.Request(); //send request to server after email was put together

You need to decide if you want to implement everything yourself or take an existing C++ library. First will teach you a lot about networking protocols, later gives you the result right away. Hope this helps! Smile | :)

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Date

Bijo Pulikkottil1-Sep-10 2:19

Bijo Pulikkottil

1-Sep-10 2:19

Hi,

If I have today date. How can I get date before 7 or 10 days?

My means to say Using number of days, how to calculate preoius date from the current date?

Cedric Moonen1-Sep-10 2:38

Cedric Moonen

1-Sep-10 2:38

Take a look at the documentation of COleDateTime and COleDateTimeSpan.

Cédric Moonen
Software developer

Charting control [v3.0]
OpenGL game tutorial in C++

Cool_Dev1-Sep-10 2:45

Cool_Dev

1-Sep-10 2:45

what is the format of time you are having? If in MFC its easy to use CTime and CTimeSpan classes.

psuedo code:

CTime curTime(...);
CTimeSpan span(7/*Days*/, 0,...);

Ctime newTime = curTime - span;

Bijo Pulikkottil1-Sep-10 3:20

Bijo Pulikkottil

1-Sep-10 3:20

Plz tell me how to do that?
If I want to get date before 7 days from current date?

How to do that?

Cedric Moonen1-Sep-10 3:22

Cedric Moonen

1-Sep-10 3:22

Wow, you really need glasses because he even provided a code snippet showing exactly how to do it...

Cédric Moonen
Software developer

Charting control [v3.0]
OpenGL game tutorial in C++

Error :: 0x800706F7 "the stub received bad data" in Excel Automation.

David Crow1-Sep-10 4:30

David Crow

1-Sep-10 4:30

Bijo Pulikkottil wrote:
If I have today date.

Based on what? Is it a CTime object? Is it a time_t variable? If you have the number of seconds since some epoch, can't you just subtract 86400 * 7 seconds?

Le@rner1-Sep-10 1:07

Le@rner

1-Sep-10 1:07

Hi all,

i m using to Excel automation to read and write excel files.

i write excel file like this.

CoInitialize(NULL);
{
    Excel::_ApplicationPtr XL;
    HRESULT hr;
    try
    {
        XL.CreateInstance(L"Excel.Application");

        // create workbook & worksheet
        // identify range to which array will be assigned

        _variant_t var((long)DISP_E_PARAMNOTFOUND,VT_ERROR);

        XL->Workbooks->Add(Excel::xlWorksheet);
        Excel::_WorksheetPtr pSheet = XL->ActiveSheet;

        Excel::RangePtr pRange = pSheet->Cells;//on this line error is occur

        Excel::RangePtr pBeginRange = pRange->Item[1][1];
        Excel::RangePtr pEndRange = pRange->Item[1][1];
        Excel::RangePtr pTotalRange = pSheet->Range[(Excel::Range*)pBeginRange][(Excel::Range*)pEndRange];

        // create some BSTRs
        wchar_t wsz1[] = L"C";
        wchar_t wsz2[] = L"D";
        BSTR bstr1;
        bstr1 = SysAllocString(wsz1);

        BSTR bstr2;
        bstr2 = SysAllocString(wsz2);

        // create safearray
        SAFEARRAYBOUND rgsabound[2] = { 0 };
        rgsabound[0].cElements = 1; // num rows
        rgsabound[0].lLbound = 0; // lower bound
        rgsabound[1].cElements = 1; // num cols
        rgsabound[1].lLbound = 0; // lower bound

        VARIANT arr;
        arr.vt = VT_ARRAY | VT_BSTR;
        arr.parray = SafeArrayCreate(VT_BSTR,2,rgsabound);
        // identify index we want to change
        long index[2];
        // modify first element <0,0>
        index[0] = 0;
        index[1] = 0;
        hr = SafeArrayPutElement(arr.parray,index,bstr1);


        // assign safearray to range
        pTotalRange->PutValue2(&arr);
        // cleanup
        VariantClear(&arr);
        SysFreeString(bstr1);
        SysFreeString(bstr2);

        XL->Visible = true;

    }
    catch(_com_error &error)
    {
        cout << "COM error " << endl;
    }
}
CoUninitialize();

when i write excel file i received this error

0x800706F7 

"the stub received bad data"

please tell me how can i solve it.

thanks in advance.

Re: Error :: 0x800706F7 "the stub received bad data" in Excel Automation.

Cool_Dev1-Sep-10 2:37

Cool_Dev

1-Sep-10 2:37

if you have #imported the correct dlls and olbs for the installed version of Excel, everything seems fine.

Re: Error :: 0x800706F7 "the stub received bad data" in Excel Automation.

Le@rner2-Sep-10 0:23

Le@rner

2-Sep-10 0:23

This happens when i run application on Office 2010 Beta version.while i run application on office 2007 its working fine.

Cannot create DSN name

raju_shiva1-Sep-10 0:49

raju_shiva

1-Sep-10 0:49

Hi sir,
I want to create a DSN Name and set a path for that.
I am using "SQLConfigDataSource" function for this.

It is not giving any error and running properly.But it is not writing to DNS.

Here ia wat i am doing

SQLConfigDataSource(NULL, ODBC_ADD_SYS_DSN, _T("Microsoft Access Driver (*.mdb)\0"), _T("DSN=SAMPLEE\0DBQ=D:\\SAMPLE.mdb\0"));

Am i doing right???or any other stuff need to be done.

Thanks
Raj

CPallini1-Sep-10 2:09

1-Sep-10 2:09

Did you check the return value?
Smile | :)

raju_shiva1-Sep-10 18:10

raju_shiva

1-Sep-10 18:10

Hi,
I tried with this

bool aDSNCreated = false;
aDSNCreated = SQLConfigDataSource(NULL, ODBC_ADD_SYS_DSN, _T("Microsoft Access Driver (*.mdb)\0"), _T("DSN=SAMPLEE\0DBQ=D:\\SAMPLE.mdb\0")); 
printf("%d",aDSNCreated );

aDSNCreated value is zero.

what i am doing wrong??

Thanks
Raj

CPallini1-Sep-10 21:21

1-Sep-10 21:21

From MSDN[^]:

When SQLConfigDataSource returns FALSE, an associated *pfErrorCode value can be obtained by calling SQLInstallerError. The following table lists the *pfErrorCode values that can be returned by SQLInstallerError and explains each one in the context of this function.

raju_shiva2-Sep-10 0:11

raju_shiva

2-Sep-10 0:11

Hi sir.

CPallini wrote:
an associated *pfErrorCode value can be obtained by calling SQLInstallerError

I am not getting how to get the errorcode.I am trying as below

bool aDSNCreated = false;
//char *str;// = "asdasdsd\0";	
RETCODE retcode= SQL_SUCCESS;
aDSNCreated = SQLConfigDataSource(NULL, ODBC_ADD_SYS_DSN, _T("Microsoft Access Driver (*.mdb)\0"), _T("DSN=SAMPLEE\0DBQ=D:\\SAMPLE.mdb\0")); 
printf("%d",aDSNCreated );
if(aDSNCreated == false)
{
	retcode = SQLInstallerError(2, NULL,NULL,100,NULL);
         
}

I am not getting wat paramaters to send and return the error code..

please help me out.

Sorry i know its a very silly question.

Thanks
Raj

CPallini2-Sep-10 0:38