refreshing a drawing area when a spinbutton is used.

["Chris Garrett" <garrett91 hotmail com>]

Hi,

I have created a GtkWindow, with a horizontal box in it.  In the first cell 
of the box, there is a drawing area containing one pixbuf.  In the second 
cell there is a spinbutton.

The pixbuf is to be used as a brush (This window is a preview of the brush), 
the size of which is dictated by the spinbutton.

I have successfully connected a signal to the spin button so that the brush 
size is changed and the pixbuf is redrawn appropriately.  However, I cannot 
seem to get the drawing area to refresh.

The expose event on the drawing area is working fine - I can move the window 
behind another, and when I bring it back to the front, the new brush is 
shown.  I need it to do this as soon as a value is changed on the 
spinbutton, however.

How do I get the spinbutton to generate an expose event or tell the drawing 
area to refresh itself?

Best regards,

Chris.

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