Azure.ApiManagement.IngestTool.StartApimImportWizardCommand.GetSelectedProject C# (CSharp) Method

        private Project GetSelectedProject(IServiceProvider provider)
        {
            // Get the DTE service and make sure there is an open solution
            DTE dte = provider.GetService(typeof(DTE)) as DTE;
            if (dte == null || dte.Solution == null)
            {
                return null;
            }

            Project project = null;
            IntPtr selectionHierarchy = IntPtr.Zero;
            IntPtr selectionContainer = IntPtr.Zero;

            // Get the current selection in the shell
            IVsMonitorSelection monitorSelection = provider.GetService(typeof(SVsShellMonitorSelection)) as IVsMonitorSelection;

            if (monitorSelection != null)
            {
                try
                {
                    uint itemId;
                    IVsMultiItemSelect multiSelect;

                    monitorSelection.GetCurrentSelection(out selectionHierarchy, out itemId, out multiSelect, out selectionContainer);
                    if (selectionHierarchy != IntPtr.Zero)
                    {
                        IVsHierarchy hierarchy = (IVsHierarchy)Marshal.GetObjectForIUnknown(selectionHierarchy);
                        return GetProjectFromHierarchy(hierarchy);
                    }
                }
                catch (Exception)
                {
                    return null;
                }
                finally
                {
                    // Make sure we release the COM pointers in any case
                    if (selectionHierarchy != IntPtr.Zero)
                    {
                        Marshal.Release(selectionHierarchy);
                    }
                    if (selectionContainer != IntPtr.Zero)
                    {
                        Marshal.Release(selectionContainer);
                    }
                }
            }

            return null;
        }