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Forces Windows to keep the display on (temporarily disables sleep mode while running). Netflix's silverlight app failed to do this for me :/
import os
import sys
import ctypes
ES_AWAYMODE_REQUIRED = 0x00000040
ES_CONTINUOUS = 0x80000000
ES_DISPLAY_REQUIRED = 0x2 #Forces the display to be on by resetting the display idle timer.
ES_SYSTEM_REQUIRED = 0x1 #Forces the system to be in the working state by resetting the system idle timer.
def not_null(result, func, arguments):
if result == 0:
raise WinError()
SetThreadExecutionState = ctypes.windll.kernel32.SetThreadExecutionState
SetThreadExecutionState.restype = int
SetThreadExecutionState.argtypes = (ctypes.c_uint, )
SetThreadExecutionState.errcheck = not_null
def main(argv):
sys.stdout.write("Keeping display on. Press enter to exit.\n")
SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED)
sys.stdin.read(1)
if __name__ == '__main__':
sys.exit(main(sys.argv) or 0)
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