Added missing Doxygen doc about popup menus.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@8015 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 18 insertions, 4 deletions

diff --git a/FL/Fl_Menu_Button.H b/FL/Fl_Menu_Button.H
index ec63d6ce2..7a5daa06f 100644
--- a/FL/Fl_Menu_Button.H
+++ b/FL/Fl_Menu_Button.H
@@ -41,8 +41,10 @@
   \image latex  menu_button.png " menu_button" width=5cm
   <P>Normally any mouse button will pop up a menu and it is lined up
   below the button as shown in the picture.  However an Fl_Menu_Button
-  may also control a pop-up menu.  This is done by setting the type()
-  , see below. </P>
+  may also control a pop-up menu.  This is done by setting the type().
+  If type() is zero a normal menu button is produced. 
+  If it is nonzero then this is a pop-up menu. The bits in type() indicate 
+  what mouse buttons pop up the menu (see Fl_Menu_Button::popup_buttons). </P>
   <P>The menu will also pop up in response to shortcuts indicated by
   putting a '&' character in the label(). </P>
   <P>Typing the shortcut() of any of the menu items will cause
@@ -58,8 +60,20 @@ class FL_EXPORT Fl_Menu_Button : public Fl_Menu_ {
 protected:
   void draw();
 public:
-  // values for type:
-  enum {POPUP1 = 1, POPUP2, POPUP12, POPUP3, POPUP13, POPUP23, POPUP123};
+  /**
+   \brief indicate what mouse buttons pop up the menu.
+   
+   Values for type() used to indicate what mouse buttons pop up the menu. 
+   Fl_Menu_Button::POPUP3 is usually what you want.
+   */  
+  enum popup_buttons {POPUP1 = 1, /**< pops up wih the mouse 1st button. */
+    POPUP2,  /**< pops up wih the mouse 2nd button. */
+    POPUP12, /**< pops up wih the mouse 1st or 2nd buttons. */
+    POPUP3,   /**< pops up wih the mouse 3rd button. */
+    POPUP13,  /**< pops up wih the mouse 1st or 3rd buttons. */
+    POPUP23,  /**< pops up wih the mouse 2nd or 3rd buttons. */
+    POPUP123 /**< pops up wih any mouse button. */
+  };
   int handle(int);
   const Fl_Menu_Item* popup();
   Fl_Menu_Button(int,int,int,int,const char * =0);