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You can add URLVariables to the URLRequest using the data property. Then send everything over using the FileReference class using the upload method. Inside your your URLRequest you can use the URLRequestMethod to decide if you want to use POST or GET.
You can use the NetConnection Class and the ObjectEncoding class to make remoting calls to your server side code. Use the connect method to connect to the server gateway. Use the call method by calling the file name then the function name of the remote class (or CFC). In the call method set up a ...
Developing an MP3 Player with Flash/Flex can be done using simple Button components and Actionscript. If you know how to load an MP3 then all the work is really parsing though the XML; In this example we are just going to use a local string as our XML datasource. In a real world example you would ...
Using the Stratus service you can connect to a peer by passing ID's to one another. Sending files happen over the netStream class.
Using the Namespace class will give you access to data inside an RSS feed
If your applying the Glow filter using MXML, just remember that its using spark components. In this example the glow is part of the label component.
The methods that the NetworkInfo Native extension for iOS uses are the same as the native ActionScript. After adding the native extension to your Flex project, create an interface that defines the methods you want to use. Then create two classes that implement that interface.
You can add move,bounce and elastic effect inside the declaration tags inside your Flex 4 application. For more information take a look at the Flex 4 Help: Using Spark easing classes http://help.adobe.com/en_US/flex/using/WS91E85D63-A025-4c46-B758-A275D4D3B3FC.html
Use the NameSpace class to access nodes starting with ns2: Take a look at this example for reference http://cookbooks.adobe.com/post_Parsing_XML_with_Namespaces-15266.html The XML example is missing a few nodes. You will have problems if you copy and paste it as is.
If your talking about creating an image based on video, then yes you can.