ASP.NET PDF Viewer using C#, VB/NET

keychain is used by numerous applications such as Safari, Finder, Mail, and Entourage to store credentials. If a user opens these applications, and the keychain is locked, they will be presented with a dialog box to enter their keychain. If the user s login password and keychain are mismatched, it will be very confusing to the end user, and will force a level of frustration when they never know which password to use at any given moment. As you may know already, the main issue is that when a user changes their password via any means other than the system preferences account pane, then their keychain password will not get updated. This creates a challenging issue for end users, as remembering a single password for them is hard enough. Combine this with the fact that in order to address the issue, users need to be taught about the Keychain Access application, this may or may not be plausible in your environment. Luckily, the Macintosh community springs into response. The folks at www.afp548.com have provided a handy utility, called Keychain Minder, which can be installed on client machines, and set to autostart. When configured like this, Keychain Minder will start at user login, and ensure that the login keychain has successfully unlocked. If not, the application will present the user with a dialog box, asking them to enter in their former password as well as their new password. After verifying the new password is the same as the login keychain, it updates the password. If the user cannot remember the old password, the application provides an easy interface to start over with a new one. Keychain Minder can be found for download at http://www.afp548.com/article. php story=20080828125103334.

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Apple Remote Desktop is a desktop management suite sold as a separate product from OS X Server. Commonly called ARD, the client for this application is installed by default on every OS X machine. Prior to management availability, a client machine must have the service turned on and access levels configured for users. This can be done by visiting the Remote Management service found in the Sharing Preference pane. The Sharing pane can be accessed by visiting System Preferences under the Apple menu. Under the Remote Management service UI, you will find options to configure the service for all users or for specific users. From here, you can add individual users, and configure levels of remote access, though typically, the only local user that would need remote access would be the 501 user. This user will typically have full access to the machine, and may or may not present visible queues to the end user when they are being observed or controlled. You can also configure this application via the command line and the kickstart command, found at /System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/ki ckstart. For example, to configure access to your machine for your 501 user, myAdmin, runs the following command as root:

The implementation of the overloaded method is as follows. Source: /website/ROOT/scripts/jaxson/common.js overloaded : function(instance, funcIdentifier, newFunc) { var overloadedPrototype = function() { var embeddedFunc = __embedded; var overloadedFunc = __newFunc; if (arguments.length == __paramCount) { overloadedFunc.apply(this, arguments); }

Invocation request = new Invocation("file:///SDCard/BlackBerry/temp/train.mp3"); Registry registry = Registry.getRegistry ("net.rim.device.api.content.BlackBerryContentHandler"); registry.invoke(request);

/System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/Resources/kickstart -configure -access -on -users myAdmin -privs all -restart -agent menu

You ll learn more about CHAPI later in this book, including how to register your own apps to handle special types of content.

From here on out, the machine will accept login connections for that user, regardless of whether or not you enabled the service in System Preferences or from kickstart.

else if (typeof(embeddedFunc) == "function") { embeddedFunc.apply(this, arguments); } } var origFunc; if (!instance[funcIdentifier]) { origFunc = function() { }; } else { origFunc = instance[funcIdentifier]; } instance[funcIdentifier] = Generics.expand(overloadedPrototype, { __embedded : origFunc, __newFunc : newFunc, __paramCount : ParamCount(newFunc) }); }, In the implementation, JavaScript generics are used to expand the overloadedPrototype function. But added to this expansion is a twist not used previously. Look at the __paramCount identifier. If the identifier is cross-referenced with Figure 2-9, then __paramCount when it is expanded will reference a numeric value. This means that the expanded function will be hard-coded, but because JavaScript generics are used, this is not a bad thing. The performance will be faster because there is no need to calculate the number of parameters that the overloadedFunc function has. To use the overloaded method, the following code is used: function FunctionNoParam() { } function FunctionOneParam(param) { info("FunctionTwoParam", "param=" + param); } function FunctionTwoParam(param1, param2) { info("FunctionTwoParam", "param1=" + param1 + " param2=" + param2); } var cls = new Object(); cls.value = "original"; cls.example = function() { info( "default", "hello"); } ops.overloaded(cls, "example", FunctionNoParam); ops.overloaded(cls, "example", FunctionOneParam); ops.overloaded(cls, "example", FunctionTwoParam); cls.example("one param example"); cls.example("first param", "second param"); Three functions are defined: FunctionNoParam, FunctionOneParam, and FunctionTwoParam. These functions serve as overloaded functions with a varying number of parameters. The cls