PC SOFT

WINDEVWEBDEV AND WINDEV MOBILE
ONLINE HELP

Home | Sign in | English UK
  • Equivalence and execution speed
  • Managing errors
  • Operating mode in the different operating systems
  • Operating mode in Windows Vista (and later)
WINDEV
WindowsLinuxUniversal Windows 10 AppJavaReports and QueriesUser code (UMC)
WEBDEV
WindowsLinuxPHPWEBDEV - Browser code
WINDEV Mobile
AndroidAndroid Widget iPhone/iPadApple WatchUniversal Windows 10 AppWindows Mobile
Others
Stored procedures
Returns or modifies the different dates and times associated with a file or directory (creation, modification or access).
Versions 18 and later
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Universal Windows 10 App This function is now available in Windows Store apps mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
WINDEVJavaUser code (UMC)
// Find out the date and time of file modification
ResDate = fDateTime("C:\MyDirectories\File.txt", "", fModify)
Syntax
<Result> = fDateTime(<Path of file / directory> [, <New date and time> [, <Type of date and time>]])
<Result>: Character string
  • Date and time associated with the file or directory (in YYYYMMDDHHMMSS format),
  • Empty string ("") if an error occurred. To find out the error details, use ErrorInfo.
<Path of file / directory>: Character string (with quotes)
  • Name and full (or relative) path of file (up to 260 characters).
  • Full (or relative) path of directory (up to 260 characters). If this parameter corresponds to a directory name, this name may (or may not) end with "\". A UNC path can be used.
<New date and time>: Optional character string (with quotes)
  • Modify a date and time: new date and time associated with the file or directory (in YYYYMMDDHHMMSS format).
  • Read a date and time: empty string ("").
<Type of date and time>: Optional constant
Specifies the date and the time to use:
fAccessDate and time of last access to the file or directory.
Java This constant is not available.
fCreationDate and time of file/directory creation.
Linux The creation date of a file or directory cannot be modified.
Java This constant is not available.
fModify
(Default value)
Date and time of last modification made to the file/directory.
Java Only the files whose date is after 1st of January 1970 can be modified.
Remarks

Equivalence and execution speed

fDateTime is equivalent to fDate and fTime used successively. However, fDateTime is faster.

Managing errors

fDateTime generates an error in the following cases:
  • the specified file is opened or the file is locked by another application,
  • the specified file or directory does not exist,
  • the name of the specified file is invalid,
  • the year of one of the file dates is before 1980,
  • the format of <New date and time> is incorrect.
  • ...

Operating mode in the different operating systems

The date and time of a file or directory cannot be modified in the following operating systems: Windows 98, Windows ME.
Linux The creation date and time of a file or directory cannot be modified.
Java Only the files whose date is after 1st of January 1970 can be modified.
WINDEVJavaUser code (UMC)

Operating mode in Windows Vista (and later)

If this function does not operate properly in Windows Vista (and later), check whether the file or directory used is not in one of the system directories (Windows directory or "Program Files" directory).
Indeed, in Windows Vista (and later), with the UAC mechanism (User Account Control) enabled, you must have the administrator privileges to handle and/or modify the files or directories in the system directories (Windows directory or "Program Files" directory).
Programming tip: To handle and/or modify the files or directories without administrator privileges, you should:
  • avoid writing into the Windows directory or into the "Program Files" directory,
  • use the system directory corresponding to the application (returned by SysDir associated with the srCommonAppData constant).
Component : wd250std.dll
Minimum version required
  • Version 10
This page is also available for…
Comments
Click [Add] to post a comment