> I have found some of my FLTK codes will crash when I enter 
> control+v.  This can be annoying when trying to paste data 
> into input fields.  Does anyone know why this is happening?  
> I do not see any reference to control+v in the Programming 
> Manual or mentioned in the forums. 

Don't know of any reason why this would happen - can you run the code
under gdb (or equivalent) and provide a backtrace of what happened
leading up to the failure?

Ctrl-V is associated with paste actions in text widgets, so it may be
some sort of cut/paste interaction, at a guess...

> I use FLTK 1.1.6.

That's *old* - can you rebuild against a more recent version, please,
and see what happens? 1.1.10 is current.

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