W dniu 11.10.2011 05:19, Ben Stott pisze:
> my_button2->callback( [this] () { this->my_button1->label("xxx");} ); // I
> haven't specified the return type here; it will default to void. You could
> just as easily use "[this] () -> void {...}"
This probably will not work, because
[this] () { this->my_button1->label("xxx");}
is not a function (it is an object with operator(), and probably with
field to store "this" pointer).
As I remember, only lambdas with empty [] can be compiled to pure C
function and GCC do this, but VS not.
So, currently, under VS lambdas will newer work with fltk.
Maybe it is good idea to use some signal/slot system in new fltk3 to
allow using complex lambdas (and avoid cast to/from void*)?
http://stackoverflow.com/questions/359928/which-c-signals-slots-library-should-i-choose
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