Discussion :

[khayyam90]

bien le bonjour,

ya t-il une commande pour modifier les attributs d'un fichier déjà existant (lecture seule, caché, archivé et les autres) ? (sous win)

je sais qu'on peut les définir lors de la création du fichier avec open. mais lorsque le fichier existe déjà :

[alexrtz]

Salut,

Tuy peux esayer de faire un petit détour : créer un nouveau fichier avec les attributs que tu veux, recopier l'ancien dans le nouveau, effacer l'ancien.

[Trap D]

Salut

Tu as l' API

Code :

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SetFileAttributes
The SetFileAttributes function sets a file's attributes. 
 
BOOL SetFileAttributes(
  LPCTSTR lpFileName,      // file name
  DWORD dwFileAttributes   // attributes
);
 
dwFileAttributes 
[in] Specifies the file attributes to set for the file. This parameter can be one or more of the following values. However, all other values override FILE_ATTRIBUTE_NORMAL. Attribute Meaning 
FILE_ATTRIBUTE_ARCHIVE The file is an archive file. Applications use this attribute to mark files for backup or removal. 
FILE_ATTRIBUTE_HIDDEN The file is hidden. It is not included in an ordinary directory listing. 
FILE_ATTRIBUTE_NORMAL The file has no other attributes set. This attribute is valid only if used alone. 
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED The file will not be indexed by the content indexing service. 
FILE_ATTRIBUTE_OFFLINE The data of the file is not immediately available. This attribute indicates that the file data has been physically moved to offline storage. This attribute is used by Remote Storage, the hierarchical storage management software. Applications should not arbitrarily change this attribute. 
FILE_ATTRIBUTE_READONLY The file is read-only. Applications can read the file but cannot write to it or delete it. 
FILE_ATTRIBUTE_SYSTEM The file is part of the operating system or is used exclusively by it. 
FILE_ATTRIBUTE_TEMPORARY The file is being used for temporary storage. File systems attempt to keep all of the data in memory for quicker access rather than flushing the data back to mass storage. A temporary file should be deleted by the application as soon as it is no longer needed.