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  • Operating mode in Windows Vista (and later)
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Stored procedures
fChangeSize (Function)
In french: fChangeTaille
Resizes an external file.
Versions 15 and later
Android This function is now available for the Android applications.
WINDEVJava This function is now available for Java applications.
New in version 15
Android This function is now available for the Android applications.
WINDEVJava This function is now available for Java applications.
Android This function is now available for the Android applications.
WINDEVJava This function is now available for Java applications.
Versions 16 and later
Universal Windows 10 App This function is now available for Windows Phone applications.
New in version 16
Universal Windows 10 App This function is now available for Windows Phone applications.
Universal Windows 10 App This function is now available for Windows Phone applications.
Versions 17 and later
iPhone/iPad This function is now available for iPhone/iPad applications.
New in version 17
iPhone/iPad This function is now available for iPhone/iPad applications.
iPhone/iPad This function is now available for iPhone/iPad applications.
Versions 18 and later
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
New in version 18
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Android Widget This function is now available in Android Widget mode.
Universal Windows 10 App This function is now available in Windows Store apps mode.
Versions 21 and later
WEBDEV - Server codePHP This function is now available for PHP sites.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
New in version 21
WEBDEV - Server codePHP This function is now available for PHP sites.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
WEBDEV - Server codePHP This function is now available for PHP sites.
Universal Windows 10 App This function is now available in Universal Windows 10 App mode.
Example
WINDEVWEBDEV - Server codeReports and QueriesAjaxUser code (UMC)
// Open an external file
FileID = fOpen("C:\MyDirectories\File.txt", foReadWrite)
IF FileID <> -1 THEN
// Change the size
Res = fChangeSize(FileID, 200)
...
END
Syntax
<Result> = fChangeSize(<File identifier> , <New file size>)
<Result>: Boolean
  • True if the change of size was performed,
  • False otherwise.
<File identifier>: Integer
Identifier of the file to use, defined by fOpen or fCreate.
<New file size>: Integer
New size of the file in bytes.
  • The file is truncated if the new size is less than the initial size.
  • The file is enlarged if the new size is greater than the initial size: the content between the former size and the new size is not defined.
Remarks
WINDEVWEBDEV - Server codeReports and QueriesUser 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
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