Finding Files by a date

[riggd]

As I am a beginner with CB3 I am having a few difficulties... I was using the functions "FindFirstFile" and "FindNextFile" to search a subdirectory and locate files with the extension txt, which I managed to work ok.

Now I would like to search the subdirectory and locate files with a particular date. I am having trouble doing this. I tried to use FileTime but I don't ubderstand it..

Can anyone show me with simple code how to search for files with say the current date of the pc for example???

 

[2ffat]

I'm not familar with FileTime. You might want to look at FileGetDate and FileAge. These return the last date the file was modified. The difference between the two is FileGetDate takes a file handle (which means the file must be open) and FileAge takes a file name.

int FileGetDate(int Handle);
int FileAge(const AnsiString FileName);

Both return an integer. (I suspect that FileTime may return something similar.) You can use this integer with FileDateToDateTime to get the modified date and time.

System::TDateTime FileDateToDateTime(int FileDate);

If you want to go further, you can take the TDateTime and turn it into a string so you can read it into an edit component. There are two functions to look at. The first, TimeToStr converts the TDateTime into a string with the time. The second, DateToStr converts the TDateTime into a string with the date.

AnsiString TimeToStr(TDateTime Time);
AnsiString DateToStr(TDateTime Date);

Putting this all together, you may have something like:

String FileName = "D:\\Temp\\TheFile.txt"; // The file's name
int IntFileDate = FileAge(FileName); // The date/time in integer format
TDateTime MyFileDateTime = FileDateToDateTime(IntFileDate); // The Date/Time
String MyFileTime = TimeToStr(MyFileDateTime); // The file's time
String MyFileDate = DateToStr(MyFileDateTime); // The file's date
[code]

As usual, this is "off the cuff" so I can't say if this will work exactly the way I think it will. One thing you should do, it put any convertions into a [b]try...catch[/b] block to catch any errors produced during the conversion.
[code]
try
{
     TDateTime MyFileDateTime = FileDateToDateTime(IntFileDate); // The Date/Time
}
catch ( ... )
{
     // Error code goes here
}

Hope this helps.

James P. Cottingham

http://www.ivcusa.com