wondering about signal functions

["Ben K" <kynneb hotmail com>]

i have created an expose_event signal function to handle the redrawing of 
one of my drawing areas.  This event is automatically called when the 
drawing area is exposed-- like when i drag another window over it.  my 
question is this: can i also redraw the drawing area by calling the 
expose_event function normally, (i.e., like a C user function)?  or does the 
function have to have a gdk expose event signal passed to it?
I have briefly tried gtk_signal_emit, but i have found that it segs like 
crazy, so i must be using it incorrectly.
thanks for any help,
-bennyk
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