ASP.NET Web PDF Document Viewer/Editor Control Library

ThreadObject.prototype.makeCall = function() { if( typeof( this.obj) == "function") { this.obj( this.data); } else if( typeof( this.obj) == "object") { this.obj.run( this.data); } } var Thread = { threadObjects : new Array(), startThread : function( obj, data, time) { for( var c1 = 0; c1 < this.threadObjects.length; c1 ++) { if( !this.threadObjects[ c1].isUsed) { this.threadObjects[ c1].isUsed = true; this.threadObjects[ c1].data = data; this.threadObjects[ c1].obj = obj; this.threadObjects[ c1].intervalId = window.setInterval( "Thread.threadObjects[ " + c1 + "]. makeCall()", time); return this.threadObjects[ c1].intervalId; } } throw new Error( "Could not start a thread"); }, endThread : function( intervalId) { for( var c1 = 0; c1 < this.threadObjects.length; c1 ++) { if( this.threadObjects[ c1].intervalId == intervalId) { window.clearInterval( intervalId); this.threadObjects[ c1].isUsed = false; } } } } function InitializeThreads( maxThreads) { for( var c1 = 0; c1 < maxThreads; c1 ++) { Thread.threadObjects.push( new ThreadObject()); } } InitializeThreads( 30); In the source, two object types are defined: ThreadObject and Thread. The ThreadObject type is used to manage the mock thread, and Thread manages the mock threads. The InitializeThreads function is used to set up the pseudo-threading environment. To explain this source code, a top-down approach is used.

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To disable the root account, enter:

Once you have gotten the hang of the Contact class, you are probably ready to work with Event objects. The specific data values you will work with are different, but the overall structure of building and accessing fields remains the same.

TIP: It is best to leave the root account disabled when you do not need it. If you do enable it, do so only temporarily.

You can construct, import, and modify Event objects in the same way that you would Contact objects. The next example demonstrates how to create an Event from scratch. Here we assume that the app will be running on a BlackBerry device, so we freely use BlackBerry-specific event fields and do not check for supported fields. This code will create a new five-hour-long event, set a reminder for 30 minutes before, include 3 attendees, and specify a location and a busy status before saving the event.

When the JavaScript file containing the pseudo-thread architecture is loaded, the InitializeThreads function is called with a parameter value of 30 InitializeThreads is used to initialize the array of pseudo-threads that will be called Hard-coding to a limit of 30 threads may seem like a bad programming practice, but there is a reason for it To create a pseudo-thread, you create a periodic event, which means you need to use either the windowsetInterval or windowsetTimeout method Calling either of these methods requires a function reference or a piece of JavaScript code The problem with both approaches is that you need to serialize the source code For example, imagine that you want to call either of the periodic event methods with a local object reference inst, as illustrated by the following source code: window.

The local directory data resides primarily in the folder found at /private/var/db/dslocal. This folder, which will require elevated privileges to access, contains numerous files pertaining to the computer s directory service configuration. For instance, accounts for Users and Groups are stored in flat property list (.plist) files nested in the /private/ var/db/dslocal/nodes/Default directory. Users are stored in /private/var/db/dslocal/ nodes/Default/users while groups are stored in /private/var/db/dslocal/nodes/Default/ groups. Every local user and group account has a corresponding .plist file found in these directories, as seen in Figure 1-5, which shows the contents of /private/var/db/dslocal/ nodes/Default/.

Network Information Service (NIS) was one of Sun s earlier attempts at providing directory services to clients. This isn t to say that all features of NIS are still supported, but basic support is there. Because Mac OS X maintains support for NIS and has a directory services plug-in dedicated to it, you can use Directory Utility to configure Mac OS X as a NIS client. If you need NIS, you know what it is. If you don t, then you will likely want to forget you mentioned it. If you need to set it up though, let s take a look at how to do it. To set up your NIS client, open Directory Utility and click on the lock to authenticate (so you can make changes). Then click on the Services icon in the Directory Utility toolbar and check the box for BSD Flat File and NIS (checked by default in 10.6), as shown in Figure 2-23.

PIM pim = PIM.getInstance(); EventList events = (EventList) pim.openPIMList(PIM.EVENT_LIST, PIM.READ_WRITE); Event event = events.createEvent(); event.addString(Event.SUMMARY, PIMItem.ATTR_NONE, "Radiohead Concert"); Calendar cal = Calendar.getInstance(); cal.set(Calendar.YEAR, 2001); cal.set(Calendar.MONTH, Calendar.AUGUST); cal.set(Calendar.DATE, 2); cal.set(Calendar.HOUR_OF_DAY, 18); event.addDate(Event.START, PIMItem.ATTR_NONE, cal.getTime().getTime()); cal.set(Calendar.HOUR_OF_DAY, 23); event.addDate(Event.END, PIMItem.ATTR_NONE, cal.getTime().getTime()); event.addInt(Event.ALARM, PIMItem.ATTR_NONE, 1800); event.addString(BlackBerryEvent.ATTENDEES, PIMItem.ATTR_NONE, "pat@example.com"); event.addString(BlackBerryEvent.ATTENDEES, PIMItem.ATTR_NONE, "chris@example.com"); event.addString(BlackBerryEvent.ATTENDEES, PIMItem.ATTR_NONE, "scott@example.com"); event.addString(BlackBerryEvent.LOCATION, PIMItem.ATTR_NONE, "Grant Park"); event.addInt(BlackBerryEvent.FREE_BUSY, PIMItem.ATTR_NONE, BlackBerryEvent.FB_OUT_OF_OFFICE); event.commit();