System.SysUtils.DateTimeToFileDate
Delphi
function DateTimeToFileDate(DateTime: TDateTime): LongInt;
C++
extern DELPHI_PACKAGE int __fastcall DateTimeToFileDate(System::TDateTime DateTime);
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.SysUtils.pas System.SysUtils.hpp |
System.SysUtils | System.SysUtils |
Description
Converts a TDateTime value into an OS timestamp value.
A timestamp is a signed 32-bit integer, used by the Operating System to record information such as the date and time a file was modified. The precise format of a timestamp depends on the OS. Use DateTimeToFileDate to convert a TDateTime value to an OS timestamp value.
DateTimeToFileDate is particularly useful for converting the Time field of the TSearchRec type used by the FindFirst and FindNext functions.