\constfunc{bool}{IsPopup}{\void}
-Returns {\tt TRUE} if the menu which is being opened or closed is a popup menu,
-{\tt FALSE} if it is a normal one.
+Returns {\tt true} if the menu which is being opened or closed is a popup menu,
+{\tt false} if it is a normal one.
This method should be only used with the {\tt OPEN} and {\tt CLOSE} events.