本文整理汇总了C++中StreamContext::SetSecondaryGainClass方法的典型用法代码示例。如果您正苦于以下问题：C++ StreamContext::SetSecondaryGainClass方法的具体用法？C++ StreamContext::SetSecondaryGainClass怎么用？C++ StreamContext::SetSecondaryGainClass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类StreamContext的用法示例。
在下文中一共展示了StreamContext::SetSecondaryGainClass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
//.........这里部分代码省略.........
dwRet = MMSYSERR_NOERROR;
break;
}
case WODM_SETVOLUME:
{
UINT NumDevs = g_pHWContext->GetNumOutputDevices();
LONG dwGain = dwParam1;
if (pStreamContext)
{
dwRet = pStreamContext->SetGain(dwGain);
}
else
{
DeviceContext *pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
dwRet = pDeviceContext->SetGain(dwGain);
}
break;
}
case WODM_BREAKLOOP:
{
dwRet = pStreamContext->BreakLoop();
break;
}
case WODM_SETPLAYBACKRATE:
{
WaveStreamContext *pWaveStream = (WaveStreamContext *)dwUser;
dwRet = pWaveStream->SetRate(dwParam1);
break;
}
case WODM_GETPLAYBACKRATE:
{
WaveStreamContext *pWaveStream = (WaveStreamContext *)dwUser;
dwRet = pWaveStream->GetRate((DWORD *)dwParam1);
break;
}
case MM_WOM_SETSECONDARYGAINCLASS:
{
if (pStreamContext)
{
dwRet = pStreamContext->SetSecondaryGainClass(dwParam1);
}
else
{
dwRet = MMSYSERR_INVALPARAM;
}
break;
}
case MM_WOM_SETSECONDARYGAINLIMIT:
{
DeviceContext *pDeviceContext;
if (pStreamContext)
{
pDeviceContext = pStreamContext->GetDeviceContext();
}
else
{
pDeviceContext = g_pHWContext->GetOutputDeviceContext(uDeviceId);
}
dwRet = pDeviceContext->SetSecondaryGainLimit(dwParam1,dwParam2);
break;
}
case MM_MOM_MIDIMESSAGE:
{
CMidiStream *pMidiStream = (CMidiStream *)dwUser;
dwRet = pMidiStream->MidiMessage(dwParam1);
break;
}
// unsupported messages
case WODM_GETPITCH:
case WODM_SETPITCH:
case WODM_PREPARE:
case WODM_UNPREPARE:
case WIDM_PREPARE:
case WIDM_UNPREPARE:
default:
dwRet = MMSYSERR_NOTSUPPORTED;
}
}
_except (EXCEPTION_EXECUTE_HANDLER)
{
dwRet = MMSYSERR_INVALPARAM;
}
g_pHWContext->Unlock();
// Pass the return code back via pBufOut
if (pdwResult)
{
*pdwResult = dwRet;
}
return TRUE;
}