Delphi Basics : FileDateToDateTime command

DelphiBasics

FileDateToDateTime
Function

Converts a file date/time format to a TDateTime value

SysUtils unit

function FileDateToDateTime(const FileDate Integer):TDateTime;

Description

The FileDateToDateTime function converts an Integer FileDate value (as obtained from FileAge for example) to a more manageable TDateTime format.

There are many routines in Delphi that can work on this TDateTime format.

Related commands

DateTimeToFileDate		Convert a TDateTime value to a File date/time format
FileAge		Get the last modified date/time of a file without opening it
FileSetDate		Set the last modified date and time of a file

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Example code : Convert the last modified date of a file into a TDateTime value

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