Re: Cocoa Classes from C++?
Re: Cocoa Classes from C++?
- Subject: Re: Cocoa Classes from C++?
- From: Andrew Farmer <email@hidden>
- Date: Tue, 27 May 2008 16:24:01 -0700
On 27 May 08, at 16:12, J. Todd Slack wrote:
1. I wish to create an NSStatusItem. I have ObjC Code to do so, but
how can I do this in C++?
You can't. Cocoa is a Objective-C framework, and you'll need to write
Objective-C code to use it effectively.
2. Can anyone point me to a reference of using Apple's Frameworks
with C++ rather than ObjC?
3. How does one use a .C or .CPP file and call functionality in a .M?
You have three options, basically.
1. Write C glue functions in your ObjC source files. The ABI for C
functions is unchanged in ObjC (unlike C++), so you can freely call
these from C, and can call them from C++ with an extern "C" declaration.
2. Use Objective-C++, as Nick Zitzmann suggested. It's a ugly hybrid
of ObjC and C++ - it'll let you use both languages in one source file,
but don't expect anything really creative (like C++ objects as member
variables of an ObjC object) to work quite correctly.
3. Use the Objective-C objc_* runtime functions. I wouldn't recommend
this route.
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