Mega Code Archive

 

Categories / Delphi / Functions

 

Fileage - get the last modified date-time of a file without opening it sysutils unit

function FileAge ( const FileName : string ) : Integer; Description The FileAge function returns the last modified date and time of a file FileName. There is no need to open or close the file - this function handles these operations silently for you. The returned value is in a 32 bit partitioned format. Use the FiledateToDateTime function to convert into a manageable TDateTime value. If the file date could not be found (for example, the FileName was invalid), then -1 is returned. Related commands DateTimeToFileDate Convert a TDateTime value to a File date/time format FileDateToDateTime Converts a file date/time format to a TDateTime value FileSetDate Set the last modified date and time of a file FileGetAttr Gets the attributes of a file FileSetAttr Sets the attributes of a file Example code : Get the last modified date of the current Unit form file var fileName : string; fileDate : Integer; begin // Try to open the Unit1.DCU file for the current project fileName := 'Unit1.DCU'; fileDate := FileAge(fileName); // Did we get the file age OK? if fileDate > -1 then ShowMessage(fileName+' last modified date = '+ DateToStr(FileDateToDateTime(fileDate))); end; Show full unit code Unit1.DCU last modified date = 10/11/2002