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    copied!<p>As you are mentioning AppleScript, I suppose you are working on Mac OS X.</p> <p>A simple way to register and use a custom URL scheme is to define the scheme in your .plist:</p> <pre><code>&lt;key&gt;CFBundleURLTypes&lt;/key&gt; &lt;array&gt; &lt;dict&gt; &lt;key&gt;CFBundleURLName&lt;/key&gt; &lt;string&gt;URLHandlerTestApp&lt;/string&gt; &lt;key&gt;CFBundleURLSchemes&lt;/key&gt; &lt;array&gt; &lt;string&gt;urlHandlerTestApp&lt;/string&gt; &lt;/array&gt; &lt;/dict&gt; &lt;/array&gt; </code></pre> <p>To register the scheme, put this in your AppDelegate's initialization:</p> <pre><code>[[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleURLEvent:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL]; </code></pre> <p>Whenever your application gets activated via URL scheme, the defined selector gets called.</p> <p>A stub for the event-handling method, that shows how to get the URL string:</p> <pre><code>- (void)handleURLEvent:(NSAppleEventDescriptor*)event withReplyEvent:(NSAppleEventDescriptor*)replyEvent { NSString* url = [[event paramDescriptorForKeyword:keyDirectObject] stringValue]; NSLog(@"%@", url); } </code></pre> <p>Apple's documentation: <a href="http://developer.apple.com/mac/library/DOCUMENTATION/Cocoa/Conceptual/ScriptableCocoaApplications/SApps_handle_AEs/SAppsHandleAEs.html#//apple_ref/doc/uid/20001239-SW10" rel="noreferrer">Installing a Get URL Handler</a></p> <p><strong>Update</strong> I just noticed a problem for sandboxed apps that install the event handler in <code>applicationDidFinishLaunching:</code>. With enabled sandboxing, the handler method doesn't get called when the app is launched by clicking a URL that uses the custom scheme. By installing the handler a bit earlier, in <code>applicationWillFinishLaunching:</code>, the method gets called as expected:</p> <pre><code>- (void)applicationWillFinishLaunching:(NSNotification *)aNotification { [[NSAppleEventManager sharedAppleEventManager] setEventHandler:self andSelector:@selector(handleURLEvent:withReplyEvent:) forEventClass:kInternetEventClass andEventID:kAEGetURL]; } - (void)handleURLEvent:(NSAppleEventDescriptor*)event withReplyEvent:(NSAppleEventDescriptor*)replyEvent { NSString* url = [[event paramDescriptorForKeyword:keyDirectObject] stringValue]; NSLog(@"%@", url); } </code></pre> <hr> <p>On the iPhone, the easiest way to handle URL-scheme activation is, to implement UIApplicationDelegate's <code>application:handleOpenURL:</code> - <a href="http://developer.apple.com/iPhone/library/documentation/UIKit/Reference/UIApplicationDelegate_Protocol/Reference/Reference.html#//apple_ref/occ/intfm/UIApplicationDelegate/application:handleOpenURL:" rel="noreferrer">Documentation</a></p>
 

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