Re: Determining read-only
Re: Determining read-only
- Subject: Re: Determining read-only
- From: David Rio Vierra <email@hidden>
- Date: Wed, 15 Jan 2003 20:23:19 -1000
Well, you have to override this one in order to check attributes of the
file you're opening:
- (BOOL)readFromFile:(NSString *)fileName ofType:(NSString *)type
Normally, you shouldn't need to check for your input file being
read-only, since you will only be reading from it anyway. The user
will be unable to replace the read-only file when he tries to save his
document, and will be forced to save it elsewhere.
To create a read-only file, there are a few NSFileManager methods like
-changeFileAttributes:atPath: and -createFileAtPath:contents:attributes:
The attributes dictionary should contain for the key
NSFilePosixPermissions an NSNumber representing the file's permissions.
Read the chmod manpage for more information about numeric file
permissions.
On Wednesday, January 15, 2003, at 07:43 PM, Francisco Tolmasky wrote:
From NSDocument,
- (BOOL)loadDataRepresentation:(NSData *)data ofType:(NSString *)aType
how can you determine if the file someone is opening is read only, and
how can you create read-only output?
Francisco Tolmasky
email@hidden
http://users.adelphia.net/~ftolmasky
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