The actual mechanics of showing the menu is set up as a case named
Show Menu that is triggered when the OnSwipeRight event is detected.
Show Menu is set up as follows:
blnMenuVisible. We will store the values True or False in this menu to indicate whether the menu is already showing.
548pixels tall by
270pixels wide. This will hold our menu.
blnMenuVisibleis set to False, which means the menu is hidden. This is the trigger for this case to run.