Re: beginSheetModalForWindow: and Distributed Objects
Re: beginSheetModalForWindow: and Distributed Objects
- Subject: Re: beginSheetModalForWindow: and Distributed Objects
- From: Andrew Kimpton <email@hidden>
- Date: Wed, 30 Apr 2008 17:29:18 -0400
On Apr 30, 2008, at 3:59 PM, Michael Vannorsdel wrote:
This is true of course but since he's getting loop mode issues I'm
just assuming either he's actually running a modal window or
displaying a sheet on a modal window. If it's a normal stock sheet
there would have been no issues with NSConnection.
I'm simply calling beginSheetModalForWindow: on a 'regular' window
(this isn't a document based app - but the window in question isn't
modal either).
So from Mike Ash's comments it seems like something else must be going
on. What set me down this path is the comment in the docs for
[NSApplcation beginSheet: modalForWindow: ...] (which I assume
[NSAlert beginSheetModalForWindow: calls ?)
Use this method in cases where you do not need to do any additional
background processing while your sheet runs. This method consumes only
enough CPU time to process events and dispatch them to the action
methods associated with the sheet. If you want to perform additional
background processing, use runModalSession:together with an
NSModalSession object instead.
The comment about additional background processing is confusing to me.
Does handling messages on an NSConnection count as background
processing ? Do I have to go to the expense of using runModalSession:
(Mike Ash's comments seem to suggest not, it should 'just work')
Bottom line - it sounds like beginSheetModalForWindow shouldn't block
connection handling but it seems to in my case - where should I look
begin to look for the cause of this ?
Andrew 8-)
On Apr 30, 2008, at 1:36 PM, Michael Ash wrote:
It definitely shouldn't be. A properly implemented sheet should run
in
NSDefaultRunLoopMode, as sheets do not block the flow of program
execution. It's possible to have an application-modal sheet which
runs
in NSModalPanelRunLoopMode, but this is a broken sheet.
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