How Do I Determine File(s) That User Double-Clicked On To Launch My Application?
When the user double-clicks on your application file the operating system will launch your application. This lesson shows how to determine what file the user double-clicked on so that you can open it.
Introduction
When configuring your application you can specify what file extensions your application supports. When your application launches the framework looks at any command line parameters or apple events that are sent to your application. Using the list of file extensions you have configured the framework stores all files that are supported in the "command line files" property.
Check "command line files" Property
When your application window opens for the first time (1) you can check if "command line files" has a value (2) and if so then you can attempt to open the file.
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