Re: [Rubycocoa-talk] Pointer arguments to Obj-C methods

[Hans-Georg <pan...@ma...>]

Am 14.04.2008 um 20:41 schrieb Knud Hinnerk Möller:

> how does one call methods like -[NSFileManager
> fileExistsAtPath:isDirectory:] from Ruby, where the second parameter
> is a pointer (in this case to a BOOL)? The Obj-C use is like this:
>
> BOOL isDir;
> NSFileManager *fileManager = [NSFileManager defaultManager];
> if ([fileManager fileExistsAtPath:@"/bla/blub" isDirectory:&isDir] &&
> isDir) {
>     doSomething();
>     // ...

You should read:

http://rubycocoa.sourceforge.net/WorkingWithPointers

> Any suggestions?

is_directory =  
OSX::NSFileManager.defaultManager.fileExistsAtPath_isDirectory?("/usr/ 
local/bin/")

Hans-Georg