The method returns the name of the command, which has been executed. For more information, see TShellBrowser.ShowContextMenu.  

Use this method to show the shell context menu for all selected objects. The context menu will be shown automatically if the ShellContextMenu property is true. p is the screen position, where the context menu should be displayed. You can use the PopupMenu property to append your own menu items to the shell context menu.  

TJamShellList.BackgroundPopupMenu 

TJamShellList.InvokeCommandOnFolder 

TJamShellList.InvokeCommandOnSelected 

TJamShellList.OnContextMenuSelect 

TShellBrowser.ShowContextMenu

This example will show the context menu for the selected items in a TJamShellList, after the user released the right mouse button:

procedure TMainForm.ShellListViewMouseUp(Sender: TObject; Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
var Item : TListItem;
begin
if (Button!=mbRight) or (OtherCondition) then exit;
Item := List.GetItemAt(X,Y);
if not Assigned(Item) then exit;
ShellListView.ShowContextMenu(ShellListView.ClientToScreen(Point(X,Y)));
end;

ShellControls.TJamShellList