NSOpenPanel and setAllowedFileTypes

[Neil MacKenzie]

System: 10.8.2
Compiling for: 10.6
XCode : 4.5.2

I am having problems with "setAllowedFileTypes" on an NSOpenPanel

The documentations says that you can pass an array of file extensions or UTI's.
I am wanting to open files that have either a "cct" extension or a file type of "CDIF". I verified the UTI by dumping it out using the following code.

theUTIDictionary=(NSDictionary *)UTTypeCopyDeclaration((CFStringRef) uti);

theEnum=[theUTIDictionary keyEnumerator];

for (NSString *s in theEnum)
{
NSLog(@"key is %@, value is %@",s, [theUTIDictionary objectForKey: s]);
}

It contains the appropriate entries for both the extension and the file type.

When I run the App it does not allow me to select files with the old file type of "CDIF". Yes , I have verified that the file does have that type(GetFileInfo in Terminal). Any idea's.

Thanks

Neil

 

[Kaveman]

I know Apple likes us to use UTI's but I'm still using extensions.

[myOpenPanel setAllowedFileTypes:[NSArray arrayWithObjects"cct", @"CDIF", nil]];

 

[Neil MacKenzie]

I know Apple likes us to use UTI's but I'm still using extensions.

[myOpenPanel setAllowedFileTypes:[NSArray arrayWithObjects"cct", @"CDIF", nil]];

Thanks for the prompt reply. What you suggest will work for files with extensions but how about files with the old "File Type"? That is why I used UTI's , I thought I could use one method to handle both cases.

Neil

 

[Kaveman]

If your UTI is not one of the standard Apple ones or does not include the old "File Type" you may need to add a custom one to your App.

Declaring New Uniform Type Identifiers