difference between XFillRectangles() and xcb_poly_fill_rectangle()

[Enrico Weigelt, metux IT consult]

Hi folks,

while trying to port Xnest to xcb, I've encountered a strange problem
when replacing XFillRectangles() by xcb_poly_fill_rectangle():

suddenly backgrounds aren't filled properly anymore. It gets better when
using an own handler for ClearArea request (which passes it directly
to the upstream Xserver), but still many other things (eg. gtk menus)
sometimes getting wrong background color.

Is there something subtle in here that I've overseen ?
(something XGC's internal state maybe ?)

thx
--mtx

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Enrico Weigelt, metux IT consult
Free software and Linux embedded engineering
info at metux.net -- +49-151-27565287