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类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.........