xpyb sample

gistfile1.py

# -*- coding: utf-8 -*-
from xcb import xcb
from xcb import xproto

r = [ 20, 20, 60, 60 ]
title = "test"

c = xcb.connect()
s = c.get_setup().roots[0]
g = c.generate_id()
w = s.root

mask = xproto.GC.Foreground | xproto.GC.GraphicsExposures
values = [ s.black_pixel, 0 ]

c.core.CreateGC(g, w, mask, values)

w = c.generate_id()
mask =  xproto.CW.BackPixel | xproto.CW.EventMask
values = [ s.white_pixel ,
           xproto.EventMask.Exposure | xproto.EventMask.KeyPress]

c.core.CreateWindow(s.root_depth, w, s.root,
                    10, 10, 100, 100, 1,
                    xproto.WindowClass.InputOutput, s.root_visual,
                    mask, values)

c.core.MapWindow(w)

c.core.ChangeProperty(xproto.PropMode.Replace, w,
                      xproto.Atom.WM_NAME, xproto.Atom.STRING, 8,
                      len(title), title)


c.flush()

done = False
e = c.wait_for_event()
while not done and e:
    if isinstance(e, xproto.ExposeEvent):
        c.core.PolyFillRectangle(w, g, 1, r)
        c.flush()
    elif isinstance(e, xproto.KeyPressEvent):
        done = True
        break
    e = c.wait_for_event()

c.disconnect()