fCompare (Function)

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fCompare (Function)

In french: fCompare

Compares the content of two files bit by bit.

Example

See additional examples

// Comparaison du contenu de deux fichiers
Res = fCompare("C:\Répertoires\FichierA.doc", "C:\Répertoires\FichierB.doc")

Syntax

<Result> = fCompare(<Path of file 1> , <Path of file 2>)

<Result>: Integer

0 if the two files are identical or if the two file paths are identical,
1 if the two files are different,
an error code (value less than 0) otherwise.

<Path of file 1>: Character string

Name and full (or relative) path of first file to compare (up to 260 characters). A UNC path can be used.
This parameter can be in Ansi or Unicode format.
This parameter can correspond to a full path or a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder: In Android, the file system is read-only on the device and on the emulator. An application can only write to its installation directory or one of its subdirectories, as well as to the external memory (SDCard).
The file path can correspond to a full path or to a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder Under iPhone/iPad, on both the device and the emulator, the file system is read-only. An application can only write to its installation directory or one of its subdirectories.

<Path of file 2>: Character string

Name and full (or relative) path of second file to compare (up to 260 characters). A UNC path can be used.
This parameter can be in Ansi or Unicode format.
This parameter can correspond to a full path or a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder: In Android, the file system is read-only on the device and on the emulator. An application can only write to its installation directory or one of its subdirectories, as well as to the external memory (SDCard).
This parameter can correspond to a full path or a path relative to the current directory (returned by fCurrentDir). This parameter is case-sensitive.
Reminder Under iPhone/iPad, on both the device and the emulator, the file system is read-only. An application can only write to its installation directory or one of its subdirectories.

Remarks

Error code

The following error codes are returned:

-1: <Chemin du fichier 1> has not been found.
-2: <Chemin du fichier 2> has not been found.
-3: Error during comparison:
- one of the files to compare is opened, locked or it does not exist;
- the path of one of the files to compare is invalid;
- the user has no read rights on one of the files to compare;
- insufficient memory to perform the comparison.

The error code message can be retrieved using the ErrorInfo function with the rrMessage constant.

Component: wd300std.dll