Regarding pixmap

[Jyothi <jyothi ncoretech com>]

Hi,

  The problem I am facing is , I create a drawable area using
gtk_drawing_area_new and gtk_drawing_area_size and send it to some other
function to create a pixmap and draw pixmap in that area...
it is giving the error ..

assertion 'drawable != NULL'  failed...

Can anybody please let me know when this error comes and how to put the
pixmap into drawing area....

thanks in advance,
Jyothi.