iChat Theatre

• Mark Alldritt iChat Theatre Feb 27 2008, 19:47
  Hi Folks,
  
  I've been trying to get a simple demo app running that uses iChat
  Theatre (InstantMessage.framework) as described in this web page
  without any success:
  
    http://developer.apple.com/leopard/overview/imframework.html
  
  Here's the code:
  
  //
  //  MyController.m
  //  iChatDemo
  //
  //  Created by Mark Alldritt on 27/02/08.
  //  Copyright 2008 __MyCompanyName__. All rights reserved.
  //
  
  #import "MyController.h"
  #import <InstantMessage/IMAVManager.h>
  #import <InstantMessage/IMService.h>
  
  @implementation MyController
  
  - (void) _handleStateChanged:(NSNotification*) notification
  {
  NSLog(@"_handleStateChanged: %@", notification);
  
  IMAVManager *manager = [IMAVManager sharedAVManager];
  
  switch ([manager state])
  {
  case IMAVRequested:
    [manager start];
    break;
  }
  }
  
  - (void) _handleURLToShareChanged:(NSNotification*) notification
  {
  NSLog(@"_handleURLToShareChanged: %@ (%@)", notification,
  [[IMAVManager sharedAVManager] URLToShare]);
  }
  
  - (void) awakeFromNib
  {
  IMAVManager *manager = [IMAVManager sharedAVManager];
  [manager setVideoDataSource:miChatView];
  
  // Register for iChat Theater notifications
  [[IMService notificationCenter] addObserver:self
        selector:@selector(_handleStateChanged:)
      name:IMAVManagerStateChangedNotification
      object:nil];
  [[IMService notificationCenter] addObserver:self
      selector:@selector(_handleURLToShareChanged:)
      name:IMAVManagerURLToShareChangedNotification
      object:nil];
  }
  
  @end
  
  miChatView is an NSImageView displaying a picture that I want to show
  through iChat Theatre.  I never receive
  IMAVManagerStateChangedNotification notifications when I try and share
  my application file through the iChat app.  My demo project is based
  on the Cocoa Application template, so there is no notion of a document.
  
  Can anyone tell me what I might be doing wrong?
  
  Thanks
  -Mark
• j o a r Re: iChat Theatre Feb 27 2008, 22:48
  On Feb 27, 2008, at 7:47 PM, Mark Alldritt wrote:
  
  

  > I never receive IMAVManagerStateChangedNotification notifications
  > when I try and share my application file through the iChat app.  My
  > demo project is based on the Cocoa Application template, so there is
  > no notion of a document.
  >
  > Can anyone tell me what I might be doing wrong?
  

  
  Hello Mark,
  
  Perhaps this is your problem:
  
  <http://www.cocoabuilder.com/archive/message/cocoa/2008/2/8/198326>
  
  You wouldn't be the first one to bump into that...
  
  Cheers,
  
  j o a r
• Chilton Webb Re: iChat Theatre Feb 27 2008, 22:49
  Hi Mark,
  
  On Feb 27, 2008, at 12:47 PM, Mark Alldritt wrote:
  
  

  > Can anyone tell me what I might be doing wrong?
  

  
  It took me awhile to make this work in my app, so perhaps I can save
  you some blood. Sweat and tears I can't help you with.
  
  While your app is running, if you drag it onto an active video chat,
  does it give you an option to share it?
  
  That option should look like this...
  
  http://www.conjurebunny.com/Welcome_files/droppedImage_11.jpg
  
  And when you drag it there, what happens next?
  
  -Chilton
• Mark Alldritt Re: iChat Theatre Feb 29 2008, 00:00
  Hi,
  
  On 27-Feb-08, at 11:32 AM, infinite labs wrote:
  
  

  > On Wed, Feb 27, 2008 at 7:47 PM, Mark Alldritt <alldritt...>
  >> wrote:
  >> Hi Folks,
  >>
  >> I've been trying to get a simple demo app running that uses iChat
  >> Theatre (InstantMessage.framework) as described in this web page
  >> without any success:
  >>
  >> http://developer.apple.com/leopard/overview/imframework.html
  >>
  >
  > You have set up Info.plist, have you? This is uber-important and only
  > noted in <http://developer.apple.com/documentation/AppleApplications/Conceptual/Insta
  ntMessageProgGuide/Articles/UsingLaunchServices.html#//apple_ref/doc/uid/TP
  40006595
  

  > >,
  

  > where it already has been missed by more than a developer.
  

  
  Thanks for this pointer.  This was in fact the problem.  For those
  that care, you need to add a LSCanProvideIMVideoDataSource key to the
  app's Property List with a value of <true/> in order for iChat to
  properly recognize the application.
  
  Thanks for the help!
  
  Cheers
  -Mark
  
  ------------------------------------------------------------------
  Mark Alldritt                            Late Night Software Ltd.
  Phone: 250-380-1725                      333 Moss Street
  Fax:  250-383-3204                      Victoria, B.C.
  Web:  http://www.latenightsw.com/        CANADA  V8V-4M9