Re: C/Obj-C API Confusion
Re: C/Obj-C API Confusion
- Subject: Re: C/Obj-C API Confusion
- From: "Sherm Pendley" <email@hidden>
- Date: Wed, 10 Sep 2008 15:56:48 -0400
On Wed, Sep 10, 2008 at 3:44 PM, J. Todd Slack <
email@hidden> wrote:
>
> I had a conversation with an Apple Engineer a few days ago and he
> recommended that I switch to the Quicktime C API rather than the Objective-C
> api for what I needed to do.
>
> I have a few questions.
Okay - I'll skip to the last one, since the answer to it makes the others
moot. :-)
> 3. Can one mix C and Objective-C in the same file?
Yes. Objective-C is a superset of C, so C functions can be called directly
from Objective-C.
> Maybe I can keep the Objective-C stuff I already have done and just write
> the c code for QT integration that I need?
Yep.
> If I pass in an NSString from AppleScript do I need to convert it a
> C-String?
Assuming the C function to which you're passing it was declared as taking a
char*, i.e. a C string, then yes, you'll have to convert it. NSString's
-cStringUsingEncoding: will do that for you.
sherm--
--
Cocoa programming in Perl: http://camelbones.sourceforge.net
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