On 1/29/05 5:38 PM, Mike Lazear didst favor us with:
>
> On Jan 28, 2005, at 7:42 PM, Laurence Harris wrote:
>
>> On 1/28/05 9:01 PM, Mike Lazear didst favor us with:
>>
>>> My event handler does a switch using the ID but ignoring the signature.
>>>
>> This is a design flaw in your application.
>>
> Makes sense. I do a lot of looking at the sample code programs for examples
> of the "right" way to do things. It is very possible but I sure don't
> remember seeing any of the sample programs testing against the signature. If
> there is an Event Handler attached to each control then I guess you would not
> have to worry about it because you would only attach to your own controls.
> Makes sense with a window event handler to have to make the signature test.
I'm not sure why you even need to test this. Why do you have a
kEventMouseDown handler attached to your window? Most low-level events like
this are handled by the views/controls in the window or handlers attached to
the controls.
>>> 1. Is there a way to change the signature/ID of a window or is it always
>>> signature 'wind', ID 1?
>>>
>> Sure, you can change it, but you'll be sorry. The system uses that and you'd
>> just be asking for trouble to change it. Apple reserves all all-lowercase
>> FourCharCodes and you shouldn't muck with any values the system sets in
>> things you don't own. You should not be ignoring the signature. That's a
>> design flaw in your application you should fix instead of trying to hack
>> around it like this.
>>
> I wasn't really trying to "hack around it" as much as make sure that was the
> correct thing to test.
Sorry, but changing the content view's signature would a be a flat out hack,
and an ugly one at that.
> I find many things in IB are not intuitively obvious
> and I wanted to make sure I wasn't just missing the "right way" to click to
> select the window, or as you corrected the content view.
You shouldn't have to do anything to select the window. Do you not have the
standard handler installed?
>>> 3. I'm also a bit confused about signatures of controls within a window. I
>>> thought I saw one of the documents (or header files) say that the signature
>>> should be the apps signature though I've never seen that used in any sample
>>> apps.
>>>
>> I don't know why they say that. I don't know anyone who does it.
>>
> Didn't make sense to me either. I was fairly positive that I read this so I
> just went digging and found it again. In the document windowscontrols.pdf on
> page 56 it says:
[...]
Yes, it says that. No one really does it though, not even Apple. File a
documentation bug against it.
>
> This seems like a major overkill to try and have every control on every window
> be unique throughout the entire app. Much simpler to just make controls
> unique to the window.
Correct.
Larry
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