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| Application programming interfaces for interaction |
| with and extension of the Eclipse Platform User Interface. |
| <h2> |
| Package Specification</h2> |
| This package provides application programming interfaces for interaction |
| with and extension of the Eclipse Platform User Interface. |
| <p>The <b>PlatformUI</b> class provides access to a single <b>workbench</b>. |
| A workbench is the root object for the UI and has one or more <b>workbench |
| windows</b>. Each workbench window has a collection of <b>workbench |
| pages</b>, only one of which is active and visible to the end user. |
| Each workbench page has a collection of <b>workbench parts. </b>A |
| page's parts are arranged (tiled or stacked) for presentation on the screen. |
| Within a page and its parts the user can interact with and modify a model |
| (typically resources in a workspace). There are two kinds of |
| workbench parts: views and editors. An editor is typically used to |
| edit or browse a document or input object. A view is typically used |
| to navigate a hierarchy of information (like the workspace), open an editor, |
| or display properties for the active editor. |
| <p>The platform creates a workbench when the workbench plug-in is activated. |
| Since this happens at most once during the life of the running platform, |
| there is only one workbench instance. Due to its singular nature, it is |
| commonly referred to as <i>the</i> workbench. |
| <p>Within a workbench the user will interact with many different resource |
| types. Because different tools are required for each, the workbench |
| defines a number of extension points which allow for the integration of |
| new tools. There are extension points for views, editors, action |
| sets, import wzards, export wizards, etc. |
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