Controls the action performed on a new item added to a project.
Assembly: Microsoft.VisualStudio.Shell.Interop (in Microsoft.VisualStudio.Shell.Interop.dll)
|The user is adding a new file based on a template. The name for the new item is specified by pbstrItemName, if required. This operation is allowed to display a UI.|
|Establishes a link to an existing file.|
|The user is adding an existing file.|
|The user has selected a .VSZ file. The caller is expected to run a wizard. This operation is allowed (and expected) to display a UI. The caller can use the SID_SVsExtensibility service to call the RunWizardFile helper method to run a standard .VSZ wizard launch file.|