DevicePowerOpen function (powrprof.h)

Initializes a device list by querying all the devices.

Syntax

BOOLEAN DevicePowerOpen(
  [optional] ULONG DebugMask
);

Parameters

[optional] DebugMask

Reserved; must be 0.

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

Requirements

Requirement Value
Minimum supported client Windows Vista [desktop apps only]
Minimum supported server Windows Server 2008 [desktop apps only]
Target Platform Windows
Header powrprof.h
Library PowrProf.lib
DLL PowrProf.dll

See also

Device Power Management