Re: Using assembly in objective-c
Re: Using assembly in objective-c
- Subject: Re: Using assembly in objective-c
- From: Andrew Farmer <email@hidden>
- Date: Mon, 21 Jan 2008 15:00:19 -0800
On 21 Jan 08, at 12:46, Twisted Theory Software wrote:
On 21 Jan, 2008, at 2:38 PM, Kyle Sluder wrote:
On 1/21/08, Twisted Theory Software <email@hidden
> wrote:
What I want is a replacement for the menu-bar clock, that displays
time how I want it, and drops down a nice-looking, adjustable
calendar
when clicked. I don't like the way other programs look, or if I do
they aren't free (which, by the way, all use NSMenuExtra
implementations). Having a clock that moves depending on the other
NSStatusItems that happen to be visible at the time is annoying: UI
elements that I glance at all the time should not be moving around.
It would be best if the time were right next to spotlight, or better
yet, drop the spotlight icon entirely and have the clock in its
place. This cannot be accomplished with NSStatusItem.
SystemUIServer takes care of all those things, and I don't think it
will be very happy for long if you start replacing them. I've
noticed
that the first sign that one of our client machines will not
survive a
logout is if the clock and spotlight icon are missing from the
menubar; at that point, the system must be forcibly shut down at
logout, or else it will sit at the spinning flower petal indicator.
Just a sign of the interdependency between the window server and the
menu extras.
You can turn the clock off in the Date and Time preference pane (the
one provided by Apple). I have never had a problem when this is
off. By 'replace' I mean "turn off and run another program that
does something similar".
But, we're getting side-tracked. Can I somehow run that assembly
from objective-c?
For the sake of brevity, I'll give a general answer. [Insert a bunch
of dire warnings about using private frameworks here.] A C(*) function
called xyzzy() will generate a symbol named _xyzzy. It can be called
by simply declaring and calling a function called xyzzy(); no wrapper
(or assembly!) is necessary.
*: C++ throws a monkey wrench into the works with function
"mangling" (to disambiguate overloaded functions). In most cases,
however, C++ library functions will either be called from other C++,
or will have pure-C wrappers.
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