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- Handling errors
- Operating mode in Windows Vista (and later)
fCreate (Function) In french: fCrée Creates an external file. This file is automatically opened in read/write. Remarks: Syntax
Creating an external file Hide the details
<Result> = fCreate(<File path> [, <Creation options>])
<Result>: Integer - an integer:
- the identifier of the external file. This identifier will be used by all the functions for handling external files.
- -1 if an error occurred. To get more details on the error, use ErrorInfo with the errMessage constant.
- a variable of type DiskFile. If an error occurs, the ErrorOccurred variable is set to True. To get more details on the error, use ErrorInfo with the errMessage constant.
<File path>: Character string Name and full or relative path of the file (up to 260 characters). The extension of the file can be specified. By default, if the file extension is not specified, the external file will have no extension. A UNC path can be used.Note: If the external file already exists (same directory and same name), this file is deleted and recreated.. To avoid deleting an existing file, use fOpen associated with the foCreateIfNotFound constant. <Creation options>: Combination of optional constants Options for creating the file: - Blocking options: A block can be set when the external file is opened:
| | foAutomaticDeletion | The file is locked when opened, and will be automatically deleted when closed (when fClose is called, or when the application is closed). If multiple applications are using the file, it will be automatically deleted when the last application closes it (when fClose is called, or at the end of the application). | foReadLock | The file will be created in read-only. The other applications that use this file will not be able to read it. | foWriteLock | The file will be created in write-only. The other applications that use this file will not be able to modify it. |
- Type of external file to create. This type is used by fReadLine and fWriteLine to define the type of information to read and write in the external file:
| | foAnsi | Ansi file. This constant is used to manage an Ansi file when the "Use Unicode strings at runtime" mode is enabled in the project configuration. This mode is used by default in the WINDEV and WEBDEV projects. | foUnicode | Unicode file. This constant is used to manage a Unicode file when the "Use Ansi strings at runtime" mode is enabled in the project configuration. This mode is used by default in WINDEV Mobile projects. |
By default, if no constant is specified: - the external file can be freely accessed by the other applications,
- the type of the file corresponds to the default mode.
Remarks Handling errors fCreate throws an error in the following cases: - the file is locked by another computer or by another application,
- the user has no write rights in the creation directory.
- a Unicode string was used for <File path> in an operating system such as Windows 98 or Windows Me.
Related Examples:
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Unit examples (WINDEV): Handling text files
[ + ] Handling "text" files with WINDEV: - Create a text file - Write into a text file - Read in a text file
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Unit examples (WEBDEV): Handling text files
[ + ] This example explains how to handle "non HFSQL" files with WEBDEV and it allows you to: - Create a text file - Write into a text file - Read in a text file
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Unit examples (WINDEV Mobile): Handling text files
[ + ] Handling external "text" files: - Create a text file - Write into a text file - Read in a text file
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Business / UI classification: Business Logic
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