fSplit (Function)

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fSplit (Function)

In french: fDécoupe

Splits a file into several files. The created files can be merged into a single file by fMerge.

Example

// Découpe le fichier Video.avi
fSplit("Video.avi", 100*1024*1024, "VideoDécoupée")
IF ErrorOccurred THEN
	// Affiche le message d'erreur
	Error(ErrorInfo())
	RETURN
END

// Des fichiers "VideoDécoupée.001", "VideoDécoupée.002" ont été créés
// Suppression du fichier source "Video.avi"
fDelete("Video.avi")

// Utilise les fichiers "VideoDécoupée.001", "VideoDécoupée.002" 
// pour recréer le fichier "Video.avi" 
fMerge("VideoDécoupée", "Video.avi")
IF ErrorOccurred THEN
	// Affiche le message d'erreur
	Error(ErrorInfo())
	RETURN
END

Syntax

<Result> = fSplit(<File name> , <Maximum size> [, <Output file> [, <Option> [, <Progress Bar control>]]])

<Result>: Integer

Number of created files,
0 if an error occurs. To get more details on the error, use ErrorInfo with the errMessage constant.

<File name>: Character string

Full name of file to split.

<Maximum size>: Integer

Maximum size (in bytes) of each created file. This size must be greater than 0.

<Output file>: Optional character string

Full path of the files to create. The created files will correspond to the specified name followed by a ".xxx" extension where xxx corresponds to the index of the created file.
By default, <Output file> corresponds to <File name>.

<Option>: Optional Integer constant

The source file is kept during the split operation. You have the ability to specify the following split option:
fDeleteSource The source file will be deleted as the split operation goes along.
Warning: If an error occurs, the source file will be LOST and cannot be retrieved.

<Progress Bar control>: Optional control name

Name of Progress Bar control, used to show the progress of the split operation.

Remarks

fOpen cannot be used on a multi-part file. Before using fOpen, the original file must be created again with fMerge.
Note: The fOpen function used on a part only accesses the sub-file corresponding to that part.
The function will return an error if an existing file and one of the sub-files to create have the same name.
The number of files that can be created cannot exceed 10 000.

Component: wd300std.dll