On 04/13/13 14:47, testalucida wrote:
> can someone explain, what's wrong with this code? There's no FL_DRAG event
> upcoming in the Box class:
The docs for the FL_DRAG event will tell you why:
http://fltk.org/doc-1.3/events.html
Under the section "Mouse Events":
----
FL_DRAG
[..]
In order to receive FL_DRAG events, the widget must return non-zero
when handling FL_PUSH.
----
So add this one line to your handle() method:
if (evt == FL_PUSH) rc = 1;
Or, just rewrite the handle() method with a switch(), ie:
int handle(int evt) {
int rc = Fl_Box::handle(evt);
switch (evt) {
case FL_PUSH: rc=1; break
case FL_DRAG: printf("Dragging..\n"); rc=1; break;
}
return rc;
}
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