Need to convert DWORD to Date Time

Cedric Moonen

What CPallini wanted to know (I suppose) is how is your date coded into your DWORD ?

Cédric Moonen Software developer
Charting control [v1.3]

yaminisridaran

Yes I using a dll the DWORD is return from that dll and the Datetime is coded in that value.I want to check that date and time in vc++

Cedric Moonen

:sigh: Please try to understand what we are asking before replying. How is the date encoded in the DWORD ? In other word, what does a digit represent ? A second, a milisecond, ... ? To which date correspond the 0 value ?

Cédric Moonen Software developer
Charting control [v1.3]

CPallini

You suppose correctly, my friend. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

CPallini

Now, I suppose he doesn't know. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

yaminisridaran

Indicates in 100-nanosecond intervals the stop time of this sample. The above mention is the sdk document we have regarding the DWORD

CPallini

Finally!!!!

yaminisridaran wrote:

The above mention is the sdk document we have regarding the DWORD

I strongly doubt that it is the SDK's reference of DWORD (i.e. please indicate the function to which SDK help actually refers). Your number represents roughly 52 seconds, what conversion do you need? :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

Sarath C

Check Various Time Functions available and find the suitable one[^] I think the value you have is the result of "GetTickCount()" API.

-Sarath. "Great hopes make everything great possible" - Benjamin Franklin

My blog - Sharing My Thoughts, An Article - Understanding Statepattern

Cedric Moonen

GetTickCount returns a number of miliseconds, not a number of 100-nanoseconds.

Cédric Moonen Software developer
Charting control [v1.3]

CPallini

Actually 100-nanosend intervals are recorded inside FILETIME struct, hence functions like GetSystemTimeAsFileTime are possible candidates. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

Rajesh R Subramanian

Cedric Moonen wrote:

Please try to understand what we are asking before replying.

5! That'd solve almost 99% of all problems in the world, I'd say. :laugh:

Nobody can give you wiser advice than yourself. - Cicero .·´¯`·->Rajesh<-·´¯`·. Codeproject.com: Visual C++ MVP

led mike

This is fun! Can I have a turn guessing at what function he used to get the value? Pleeeeeezzzz, it's urgent!

led mike

Rajesh R Subramanian

Damn it! Stand in the queue.

Nobody can give you wiser advice than yourself. - Cicero .·´¯`·->Rajesh<-·´¯`·. Codeproject.com: Visual C++ MVP

CPallini

Yes, now it's your turn. Turn ended (do you realize we're talking about 100-nanosecond intervals? It is fu****g urgent!!!!). :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

David Crow

Based on the limited information you've provided, I'd go with something like:

DWORD dw = 524642425;
Date time dt = dw; ;)

Now if you want a more helpful, detailed answer, please rethink your question. Ask yourself something like, "What does 524642425 represent?" Is it the number of seconds since the start of time, or the number of milliseconds since Windows was last started, or the number of nanoseconds since the start of the year, etc?

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Lost User

A nanosecond is one billionth of a second. If you are storing Time in a DWORD represented as 100 nanoseconds then you would not be able to store very much time. a DWORD is a32-bit unsigned integer (0 through 4294967295). You are probably recieving a FILETIME structure: http://msdn2.microsoft.com/en-us/library/ms724284(VS.85).aspx[^] If for some reason you are actually using a DWORD then you can get seconds like this and work from there.DWORD dwTime = 524642425; DWORD dwSeconds = (dwTime/10000000); //52.4642425 seconds
Best Wishes, -David Delaune

led mike

DavidCrow wrote:

please rethink your question

So you assume thinking was previously involved eh? Interesting. ;)

led mike