def suspend(hibernate=False):
"""Puts Windows to Suspend/Sleep/Standby or Hibernate.
Parameters
hibernate: bool, default False
If False (default), system will enter Suspend/Sleep/Standby state.
If True, system will Hibernate, but only if Hibernate is enabled in the
system settings. If it's not, system will Sleep.
"""
# Enable the SeShutdown privilege (which must be present in your
# token in the first place)
priv_flags = (
win32security.TOKEN_ADJUST_PRIVILEGES | win32security.TOKEN_QUERY)
hToken = win32security.OpenProcessToken(
win32api.GetCurrentProcess(), priv_flags)
priv_id = win32security.LookupPrivilegeValue(
None, win32security.SE_SHUTDOWN_NAME)
old_privs = win32security.AdjustTokenPrivileges(
hToken, 0, [(priv_id, win32security.SE_PRIVILEGE_ENABLED)])
if (not win32api.GetPwrCapabilities()['HiberFilePresent'] and hibernate):
import warnings
# Translators: message to user to report hibernate mode is not available.
warnings.warn(_("Hibernate isn't available. Sleep mode is activated."))
try:
ctypes.windll.powrprof.SetSuspendState(not hibernate, True, False)
except: # noqa:E722
# True=> Standby; False=> Hibernate
# https://msdn.microsoft.com/pt-br/library/windows/desktop/aa373206(v=vs.85).aspx
# says the second parameter has no effect.
win32api.SetSystemPowerState(not hibernate, True)
# Restore previous privileges
win32security.AdjustTokenPrivileges(hToken, 0, old_privs)
def hibernate(cls, force=False, **kwargs):
# The force parameter has no effect actually
cls.adjust_privilege(win32con.SE_SHUTDOWN_NAME, True)
try:
win32api.SetSystemPowerState(False, force)
finally:
cls.adjust_privilege(win32con.SE_SHUTDOWN_NAME, False)
def win_standby():
""" Standby Windows system, returns after wakeup """
try:
win_power_privileges()
win32api.SetSystemPowerState(True, True)
except:
logging.error(T('Failed to standby system'))
logging.info("Traceback: ", exc_info=True)
def win_hibernate():
""" Hibernate Windows system, returns after wakeup """
try:
win_power_privileges()
win32api.SetSystemPowerState(False, True)
except:
logging.error(T('Failed to hibernate system'))
logging.info("Traceback: ", exc_info=True)
def suspend(cls, force=False, disable_wake_event=True, **kwargs):
# The force parameter has no effect actually
cls.adjust_privilege(win32con.SE_SHUTDOWN_NAME, True)
try:
# SetSuspendState(False, force, disable_wake_event)
win32api.SetSystemPowerState(True, force)
finally:
cls.adjust_privilege(win32con.SE_SHUTDOWN_NAME, False)
