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from Xlib import display
from Xlib.protocol import event
from Xlib import X
import random
class Synchronizer:
def __init__(self):
self.display = display.Display()
self.screen = self.display.screen()
self.root = self.screen.root
self.sync_atom = self.display.intern_atom('I3_SYNC')
self.send_window = self.root.create_window(-10, -10, 10, 10, 0, self.screen.root_depth)
def sync(self):
rnd = random.randint(0, 2147483647)
message = event.ClientMessage(window=self.root,
data=([32, [self.send_window.id, rnd, 0, 0, 0]]),
message_type=self.sync_atom,
client_type=self.sync_atom,
sequence_number=0)
self.display.send_event(self.root, message, X.SubstructureRedirectMask)
while True:
e = self.display.next_event()
if e.type == X.ClientMessage and e.client_type == self.sync_atom:
fmt, data = e.data
if data[0] == self.send_window.id and data[1] == rnd:
break
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