> class MyStringList : public StringList {
> public:
> int children(const Menu* menu) {
> return ((Menu*)(menu->user_data()))->number_of_items();
> }
> const char * label(const Menu* menu, int index) {
> return ((Menu*)(menu->user_data()))->label(index);
> }
> };
In http://www.fltk.org/doc-2.0/html/classfltk_1_1StringList.html I had already
seen the hint to create a subclass, but I was able to figure out what is meant
for what 'MyClass*' stands (sure, a pointer on a class, but with which
properties).
When I try to use your code snippet, I get one error saying that
'number_of_items' is no element of the class fltk::menu (line 4) and another
one lamenting an impossible conversion from 'int' to 'const char *' in 'void
fltk::Widget::label(const char *)' (line 7).
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