> Hello, I'm fairly new to FLTK but I am having some trouble getting a
> Fl_Valuator to update from a callback. I currently have the following
> callback on a button:
>
> {
> boost::thread t(boost::bind(&MotorControl::Sweep, motor_control));
> }
>
> This should call the MotorControl::Sweep method in a separate thread. Within
> this method I issue the value(int) method on a few Fl_Valuators to change
> their values. There is also a boost sleep command between these method calls.
>
> My issue is if I do not move the mouse, the Fl_Valuators (which are
> horizontal sliders) do not update their positions. When I do move the mouse,
> the sliders instantly jump to their correct values.
>
> How can I get the "Fl_Value_Slider"s to update correctly without me moving
> the mouse?
>
> Thank you!
I found a solution that seems to work. Calling Fl::check(); after setting with
value(int) does the trick.
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