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... And here's the relevant (V1.4) documentation. NOTE: this is in the Fl_Menu_Item doc, not the Fl_Menu doc.
31.76.2.4
callback() [1/5]
Fl_Callback_p Fl_Menu_Item::callback ( ) const
[inline]
Returns the callback function that is set for the menu item.
Each item has space for a callback function and an argument for that function. Due to back compatibility, the
Fl_Menu_Item itself is not passed to the callback, instead you have to get it by calling ((Fl_Menu_ ∗ )w)- > mvalue()
where w is the widget argument.
On Sunday, May 15, 2022 at 2:54:12 PM UTC-4 sups...@gmail.com wrote:
I have a Fl_Menu_Button with some menu items inside it. The menu items look like this:{ {"label", 0, reinterpret_cast<Fl_Callback*>(callback), 0, FL_MENU_TOGGLE}, {nullptr}}
callback looks like this: void callback(Fl_Menu_Item* o, void* v) { std::cout << o->value() << std::endl; }
For whatever reason, it always returns FL_MENU_VALUE (4), regardless of whether I checked or unchecked the box. From the docs it says it should return 0 if the item is not checked. Where have I gone wrong?
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