stupid VC++ with timestamp

[tataxin]

I have a dialog with 2 Date Time Picker. The first is m_date with Short Date format The second is m_time with Time format

CDateTimeCtrl dateBox; // Date Time Picker with Short Date format
CDateTimeCtrl timeBox; // Date Time Picker with Time format

Then I want to get the timestamp from them, the final result should be in __int64 (to compare with database and something else). An example is 1214878775000 for a SYSTEMTIME wYear 2008 wMonth 7 wDayOfWeek wDay 1 wHour 11 wMinute 19 wSecond 35 wMilliseconds 734 Try to look at the MSDN, there are many stupid things: CTime, SYSTEMTIME, FILETIME, .... blah blah .... with a alot of functions. Is it really that difficult or I go the wrong way? Does anyone have some way to to this? Here I got the result with a function like this way:

__int64 CMyDlg::getTimestamp()
{
__int64 nTime;

CTime tmpTime;
int nYear, nMonth, nDay, nHour, nMin, nSec;

dateBox.GetTime( tmpTime );
nYear = tmpTime.GetYear(); nMonth = tmpTime.GetMonth(); nDay = tmpTime.GetDay();

timeBox.GetTime( tmpTime );
nHour = tmpTime.GetHour(); nMin = tmpTime.GetMinute(); nSec = tmpTime.GetSecond();

CTime navTime( nYear, nMonth, nDay, nHour, nMin, nSec );

SYSTEMTIME	ST;
FILETIME	FT;

navTime.GetAsSystemTime(ST);

SystemTimeToFileTime(&ST,&FT);

\_\_int64 nSetTime;


memcpy(&nSetTime, &FT, sizeof(FILETIME));

MyFormatter formatter;

nTime = formatter.FileTimeToJavaTime(nSetTime);

nTime -= 9 \* 60 \* 60\* 1000;

return nTime;

}

It use another class MyFormatter that I cannot understand. I really hate these stupid stuff !!! :mad: Does anyone have a simple way to get timestamp? Thank you in advance,

[David Crow]

While it's not completely portable, have you tried:

SystemTimeToFileTime(&ST,&FT);

__int64 *nTime = (__int64 *) &FT;

return *nTime;

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[kcynic]

it due to what you want to. but for the code you provided, i think it will not work, although i didn't look it completely. for example, dateBox.GetTime( tmpTime ); may not retrieve the right time value you want, it due to how the funtion you implemented. btw, you can select CTime to work for you, but time_t, and there are many other time types available, like you used.

[tataxin]

I think because there're many types, so it makes me confused. I just want to use the simple way, ;) And, dataBox.GetTime(tmpTime) works, I get the correct value I need

[tataxin]

thank you, DavidCrow it works, and a little bit better. but I mean, here is the progress: from dialog item -> CTime variable -> another CTime var -> SYSTEMTIME var -> FILETIME var -> __int64 result well, I think it's too much. It's too complex for newbie in VC++, also. And the most is: is it really necessary to be like that??? Do you have a simplier solution for this? Does anyone have? thank you very much, :)

modified on Tuesday, July 1, 2008 1:17 AM

[kcynic]

yes. i did say dataBox.GetTime(tmpTime) may not work, i used 'may', not 'must'. lol. it due to your implement, if you use its inner point, of course it work, right? lol

[tataxin]

you're right, :) so i'm lucky because it works, even I don't know what is inner point, :(. I just let dataBox is the member of the dialog. can you show me the document about inner point so I can read about it. thank you, kcynic, ;)

[David Crow]

tataxin wrote:

Do you have a simplier solution for this?

Not by much. What about:

__int64 CMyDlg::getTimestamp( void )
{
SYSTEMTIME stDate;
m_date.GetTime(&stDate);

SYSTEMTIME stTime;
m\_time.GetTime(&stTime);

stDate.wHour   = stTime.wHour;
stDate.wMinute = stTime.wMinute;
stDate.wSecond = stTime.wSecond;

FILETIME ft;
SystemTimeToFileTime(&stDate, &ft);

\_\_int64 \*nTime = (\_\_int64 \*) &ft;

return \*nTime;

}

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[Alan Balkany]

You're right. It's way too complex. The insane complexity started with MFC in the mid/late 1990s. I think Java became popular around then because people were disgusted with the complex crap from Microsoft. In response, Microsoft created a more sane platform, C# and .NET, copying a lot from Java. The simpler solution is to switch to C#. It's amazing how much simpler everything is in C#.

[tataxin]

Oh nice, DavidCrow!! At least we don't have to use CTime. so the process will be from dialog item -> SYSTEMTIME var -> FILETIME var -> __int64 result It works, :) Thank you very much!!

[tataxin]

Hahaha, it's a good idea to change to Java or C#, Alan Balkany. But I have no choice in my projects. Just my boss decided it. Anyway, thank you for that, :)

[kcynic]

dateBox.GetTime( tmpTime ); in this line, you might only want to retrieve a time value from your dialog. what i said inner point means in the tmpTime, if it isn't a CTime object, you should use points the new values and return, otherwise, you can't return the right value via tmpTime, right? especially, for c++ class, there are two copying ways: simple copy and deep copy. Almost every C++ book will refer it, you can look up it.

modified on Tuesday, July 1, 2008 11:11 PM