.NET/ASP.NET/C#/VB.NET PDF Document SDK

Next, you will configure the background syncing options, called Home Syncing in 10.6. In this instance, you will synchronize the User s Desktop and Documents folders. You are not concerned about other media content, such as Pictures, Movies, and Music. Users can certainly connect to their home folder manually (or you can mount it for them using MCX), and they can upload any media files that they deem important (perhaps only the server-side home directories are backed up). In this case, you want to make sure you exclude some potentially sync-busters, such as the Entourage database at ~/Documents/Microsoft User Data, or potential Virtual Machines at ~/Documents/Virtual Machines (or ~/Documents/Parallels if you are using parallels instead of VMware), as shown in Figure 7-24.

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Once you actually have a GIF image, you re faced with another problem. By default, a BitmapField will only display the first frame of the image. Fortunately, RIM created BitmapField as an extensible class, so you can override it to add animation support. Load the image as a GIFEncodedImage, then use the methods exposed by that class to determine how many frames and animation loops are encoded in the image. Create a separate thread that walks through the frames, sleeps for an appropriate time at each frame, then invalidates the BitmapField. The custom BitmapField s paint() method should retrieve the current frame position, then draw it to the Graphics context.

In order to reduce syncing times, Mac OS X 10.5 server introduced a new feature that would track server-side modifications to files. This adds additional logic to help a client and a server determine which files need to be synced and to help with conflict resolution. To disable server-side syncing, simply enable the option in server admin. With the main server entry selected, choose the settings tab. Under the general settings tab, you will be presented with the option to enable several OS X services, such as NTP serving, as well as Server Side File tracing for home directory syncing. When this option is enabled, clients will connect to the server via an ssh connection over port 2336. This connection is used to converse with the server to build an accurate change manifest. Once this is created, syncing is done per usual over AFP. If you do not enable this option, all change detection will be performed over AFP.

Delegates cannot return values because multiple methods may return values; thus, delegates should always use code blocks Code blocks are inherently single, multiple, or no result oriented Using code blocks does not require the infrastructure to do anything special when data has to be returned Delegates can be implemented using reference or value duck typing, with the main difference between them being the ability to serialize..

Troubleshooting Home Directory syncing issues is something that you will inevitably have to deal with when you deploy them at a large scale In the following few paragraphs, you will try to present a summary of the players involved to help you to determine the possible origin of different issues When syncing issues arrive, the first thing to determine is the breadth of the issue: Is the problem only occurring with a single user or is it affecting all user s with the applied management settings One of the most common causes of syncing problems is due to conflicting sync settings Your ~/Library/Preferences folder isn t going to sync if you exclude the ~/Library folder Use the system_profiler and gmcxquery function discussed earlier to verify applied settings After this, consult the log file found at : ~/Library/Logs/FileSyncAgentlog and ~/Library/Logs/FileSyncAgent-verboselog.

While this book focuses on RIM CLDC UI, some programmers may be using the MIDP LCDUI for display, so let s briefly touch on how those apps handle images. If you are using a Form, you can directly append an Image to your Form, or create an ImageItem and then add that.

Between these two log files, there will typically be evidence as to the nature of your problem If server-side tracking is enabled, then the client uses public key authentication to contact the server over port 2336 For this authentication, preshared keys are stored at ~/Library/FileSync/FileSyncAgent_key_dir In this directory, there contains a public key and a private key used to authenticate to the server In earlier versions of 105, if permissions of this folder were such that the user was not the owner, and did not have exclusive access to the keys, then authentication would fail This would result in a complete sync failure This issue was addressed in a point-release patch The system now will detect permissions problems and repair them prior to attempting to connect to the home directory server If interested, you can view the ssh configurations for this service by consulting the files /System/Library/CoreServices/FileSyncAgent.