/// <summary>
/// Initializes the singleton instance of the command.
/// </summary>
/// <param name="package">Owner package, not null.</param>
public static void Initialize(UndoCloseDocumentPackage package)
{
OleMenuCommandService commandService = package.GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
IVsUIShell uiShell = package.GetService(typeof(SVsUIShell)) as IVsUIShell;
DTE2 dte = package.GetService(typeof(DTE)) as DTE2;
Instance = new UndoCloseDocument(package, commandService, uiShell, dte);
}
