Re: [Discuss-gnuradio] Waterfallsink

[Don Ward]

Hi Rob,

> I see strange waterfall behavior in a MinGW installation on a Windows
> machine.  The problem is that the waterfall does not automatically
> update.  If I minimize the window then maximize it, it will be updated.
> If I drag another window over the top of it, only the portion that the
> window was dragged over will be updated.  If I right click over the
> window so that the pop-up menu appears, when the menu goes away the area
> under it has been updated.  I've had the same problem on two different
> machines.  Anyone know an easy fix for this problem?

I remember this problem, but I'm not sure I remember the solution.  Try 
adding the line:

   del dc1

before the line

   self.DoDrawing (None)

at the end of set_data().

I think the problem was that self.bm was still selected into dc1 and that 
prevented it from being used properly in dc.

-- Don W.