设置系统屏幕关闭及系统休眠时间

#include <Powrprof.h> 
#pragma comment(lib,"PowrProf.lib")
DWORD lockTime = 0;
void SetPowerPolicy()
{

    SYSTEM_POWER_POLICY spp = { 0 };
    CallNtPowerInformation(SystemPowerPolicyAc, NULL, 0, &spp, sizeof(spp)); //get power information
    spp.IdleTimeout = 600;
    spp.VideoTimeout = 600;
    CallNtPowerInformation(SystemPowerPolicyAc, &spp, sizeof(spp), NULL, 0); //set new power information
}