1. To Change the perspective in the current workbench window, following steps are required:


• The following code hides the current perspective:



IPerspectiveDescriptor persDescription = PlatformUI.getWorkbench().     getActiveWorkbenchWindow().getActivePage().getPerspective();   PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().     closePerspective(persDescription,false,false);



• The following code shows the new perspective:



IPerspectiveDescriptor persDescription1 = PlatformUI.getWorkbench().     getPerspectiveRegistry(). findPerspectiveWithId(NewPerspective.ID);   PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().     setPerspective(persDescription1);



2. To open the perspective in new window, use the following code:



PlatformUI.getWorkbench().openWorkbenchWindow(newPerspectiveI);



3. To hide the current view, use the following code:



PlatformUI.getWorkbench().getActiveWorkbenchWindow().     getActivePage().hideView(ivref[0]);



4. To open another view from the plug-in, use the following code:



PlatformUI.getWorkbench().getActiveWorkbenchWindow().     getActivePage().showView(ViewID);



5. To get the reference of the view:



View view = (View) PlatformUI.getWorkbench().     getActiveWorkbenchWindow().getActivePage().findView(ViewID);




Now using this reference the Controls and methods of the view can be accesed.

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