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  • 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
fLoadBuffer (Function)
In French: fChargeBuffer
Loads the content of an external file (text, image, ...) in a buffer variable.
Versions 17 and later
iPhone/iPad This function is now available for the iPhone/iPad applications.
Windows Mobile This function is now available for the Windows Mobile applications.
Android This function is now available for the Android applications.
WINDEVJava This function is now available for the Java applications.
New in version 17
iPhone/iPad This function is now available for the iPhone/iPad applications.
Windows Mobile This function is now available for the Windows Mobile applications.
Android This function is now available for the Android applications.
WINDEVJava This function is now available for the Java applications.
iPhone/iPad This function is now available for the iPhone/iPad applications.
Windows Mobile This function is now available for the Windows Mobile applications.
Android This function is now available for the Android applications.
WINDEVJava This function is now available for the Java 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.
Stored procedures This function is now available in the code of stored procedures.
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.
Stored procedures This function is now available in the code of stored procedures.
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.
Stored procedures This function is now available in the code of stored procedures.
Versions 21 and later
WEBDEV - Server codePHP This function is now available for the 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 the 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 the 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)
MyBuffer is Buffer
MyBuffer = fLoadBuffer("c:\tmp\MyFile.raw")
WINDEVWEBDEV - Server codeReports and QueriesAjaxUser code (UMC)
// Read the first 50 bytes of the file from the beginning
MyBuffer is Buffer
MyBuffer = fLoadBuffer("C:\Dir\Fic.test", 0, 50)
Syntax
<Result> = fLoadBuffer(<External File> [, <Position> [, <Size>]])
<Result>: Buffer
Content of text file.
<External File>: Character string (with quotes)
Name and full (or relative) path of external file (text, image, ...). A UNC path can be used. This file is not necessarily a file in TXT format: indeed, the binary zeros are allowed.
Universal Windows 10 App Windows Phone: The file path corresponds to a relative path in relation to the current directory. The current directory corresponds to the data directory of application.
Reminder: only the files found in the data directory associated with the application can be handled.
Windows Mobile This path must be a full path or a UNC path. It cannot be a relative path.
Versions 17 and later
iPhone/iPad The file path corresponds to a full path or to a relative path in relation to the current directory (returned by fCurrentDir). This parameter is case sensitive.
Reminder: On iPhone/iPad, the file system is read-only on the device and on the emulator. An application has the rights to write into its setup directory or into one of its sub-directories.
New in version 17
iPhone/iPad The file path corresponds to a full path or to a relative path in relation to the current directory (returned by fCurrentDir). This parameter is case sensitive.
Reminder: On iPhone/iPad, the file system is read-only on the device and on the emulator. An application has the rights to write into its setup directory or into one of its sub-directories.
iPhone/iPad The file path corresponds to a full path or to a relative path in relation to the current directory (returned by fCurrentDir). This parameter is case sensitive.
Reminder: On iPhone/iPad, the file system is read-only on the device and on the emulator. An application has the rights to write into its setup directory or into one of its sub-directories.
<Position>: Optional integer
Versions 18 and later
Position from which the text file must be loaded. This position is expressed in bytes (or in number of characters).
This parameters corresponds to 0 (beginning of file) by default.
AndroidAndroid Widget Java This parameter is not available.
New in version 18
Position from which the text file must be loaded. This position is expressed in bytes (or in number of characters).
This parameters corresponds to 0 (beginning of file) by default.
AndroidAndroid Widget Java This parameter is not available.
Position from which the text file must be loaded. This position is expressed in bytes (or in number of characters).
This parameters corresponds to 0 (beginning of file) by default.
AndroidAndroid Widget Java This parameter is not available.
<Size>: Optional integer
Versions 18 and later
Maximum size of the file to load. This size is expressed in bytes (or in number of characters).
By default, this size corresponds to the total size of the file.
AndroidAndroid Widget Java This parameter is not available.
New in version 18
Maximum size of the file to load. This size is expressed in bytes (or in number of characters).
By default, this size corresponds to the total size of the file.
AndroidAndroid Widget Java This parameter is not available.
Maximum size of the file to load. This size is expressed in bytes (or in number of characters).
By default, this size corresponds to the total size of the file.
AndroidAndroid Widget Java This parameter is not available.
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 used is not found 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 found in the system directories (Windows directory or "Program Files" directory).
Programming tip: To handle and/or modify the files without having 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).
Components
WINDEVWEBDEV - Server codeReports and Queries wd230std.dll
Windows Mobile wp230std.dll
Java wd230java.jar
Linux wd230std.so
Android wd230android.jar
Minimum required version
  • Version 16
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