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C++ StreamContext::GetDeviceContext方法代码示例

本文整理汇总了C++中StreamContext::GetDeviceContext方法的典型用法代码示例。如果您正苦于以下问题:C++ StreamContext::GetDeviceContext方法的具体用法?C++ StreamContext::GetDeviceContext怎么用?C++ StreamContext::GetDeviceContext使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在StreamContext的用法示例。


在下文中一共展示了StreamContext::GetDeviceContext方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: HandleWaveMessage

BOOL HandleWaveMessage(PMMDRV_MESSAGE_PARAMS pParams, DWORD *pdwResult)
{
    //  set the error code to be no error first
    SetLastError(MMSYSERR_NOERROR);

    UINT uMsg = pParams->uMsg;
    UINT uDeviceId = pParams->uDeviceId;
    DWORD dwParam1 = pParams->dwParam1;
    DWORD dwParam2 = pParams->dwParam2;
    DWORD dwUser   = pParams->dwUser;
    StreamContext *pStreamContext = (StreamContext *)dwUser;

    DWORD dwRet;

    g_pHWContext->Lock();

    _try
    {
        switch (uMsg)
        {
        case WODM_GETNUMDEVS:
            {
                dwRet = g_pHWContext->GetNumOutputDevices();
                break;
            }

        case WIDM_GETNUMDEVS:
            {
                dwRet = g_pHWContext->GetNumInputDevices();
                break;
            }

        case WODM_GETDEVCAPS:
            {
                DeviceContext *pDeviceContext;
                UINT NumDevs = g_pHWContext->GetNumOutputDevices();

                if (pStreamContext)
                {
                    pDeviceContext=pStreamContext->GetDeviceContext();
                }
                else
                {
                    pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
                }

                dwRet = pDeviceContext->GetDevCaps((PVOID)dwParam1,dwParam2);
                break;
            }


        case WIDM_GETDEVCAPS:
            {
                DeviceContext *pDeviceContext;
                UINT NumDevs = g_pHWContext->GetNumInputDevices();

                if (pStreamContext)
                {
                    pDeviceContext=pStreamContext->GetDeviceContext();
                }
                else
                {
                    pDeviceContext = g_pHWContext->GetInputDeviceContext(uDeviceId);
                }

                dwRet = pDeviceContext->GetDevCaps((PVOID)dwParam1,dwParam2);
                break;
            }

        case WODM_GETEXTDEVCAPS:
            {
                DeviceContext *pDeviceContext;
                UINT NumDevs = g_pHWContext->GetNumOutputDevices();

                if (pStreamContext)
                {
                    pDeviceContext=pStreamContext->GetDeviceContext();
                }
                else
                {
                    pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
                }

                dwRet = pDeviceContext->GetExtDevCaps((PVOID)dwParam1,dwParam2);
                break;
            }

        case WODM_OPEN:
            {
                DEBUGMSG(ZONE_WODM, (TEXT("WODM_OPEN\r\n")));
                DeviceContext *pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
                dwRet = pDeviceContext->OpenStream((LPWAVEOPENDESC)dwParam1, dwParam2, (StreamContext **)dwUser);
                break;
            }

        case WIDM_OPEN:
            {
                DEBUGMSG(ZONE_WIDM, (TEXT("WIDM_OPEN\r\n")));
                DeviceContext *pDeviceContext = g_pHWContext->GetInputDeviceContext(uDeviceId);
                dwRet = pDeviceContext->OpenStream((LPWAVEOPENDESC)dwParam1, dwParam2, (StreamContext **)dwUser);
//.........这里部分代码省略.........
开发者ID:hibive,项目名称:sjmt6410pm090728,代码行数:101,代码来源:wavemain.cpp


注:本文中的StreamContext::GetDeviceContext方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。