get.c

此代码为WCE5.0下电源管理的源代码

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*++


Module Name:

    get.c

Abstract:

    Power Manager util to query/set the system power state.

Notes:

Revision History:

--*/

#include <windows.h>
#include <msgqueue.h>
#include <pm.h>

int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrevInst, LPWSTR lpCmdLine, int nCmShow)
{
    WCHAR  state[1024] = {0};
    LPWSTR pState = &state[0];
    DWORD dwBufChars = (sizeof(state) / sizeof(state[0]));
    DWORD  dwStateFlags = 0;
    DWORD dwErr;

    UNREFERENCED_PARAMETER(hInst);
    UNREFERENCED_PARAMETER(hPrevInst);
    UNREFERENCED_PARAMETER(nCmShow);
    
    dwErr = GetSystemPowerState(pState, dwBufChars, &dwStateFlags);
    if (ERROR_SUCCESS != dwErr) {
        RETAILMSG(1, (TEXT("PMGET!GetSystemPowerState:ERROR:%d\n"), dwErr));
    } else {
        RETAILMSG(1, (TEXT("PMGET! System Power state is '%s', flags 0x%08x\n"), state, dwStateFlags));
        switch (POWER_STATE(dwStateFlags)) {
        case POWER_STATE_ON:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_ON\n")));
            break;
        case POWER_STATE_OFF:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_OFF\n")));
            break;
        case POWER_STATE_CRITICAL:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_CRITICAL\n")));
            break;
        case POWER_STATE_BOOT:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_BOOT\n")));
            break;
        case POWER_STATE_IDLE:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_IDLE\n")));
            break;
        case POWER_STATE_SUSPEND:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_SUSPEND\n")));
            break;
        case POWER_STATE_RESET:
            RETAILMSG(1, (TEXT("PMGET!\tPOWER_STATE_RESET\n")));
            break;
        case 0:
            break;
        default:
            RETAILMSG(1,(TEXT("PMGET!\tUnknown Power State Flags:0x%x\n"),dwStateFlags));
            ASSERT(0);
            break;
        }
    }

    return 0;
}

// EOF