void InDevice::Open (Win::Event & event)
{
_status = ::waveInOpen (
&_handle,
_devId,
&_format,
reinterpret_cast<DWORD> (event.Get ()),
0, // callback instance data
CALLBACK_EVENT);
switch (_status)
{
case MMSYSERR_NOERROR:
return;
case MMSYSERR_ALLOCATED:
throw Win::Exception("Cannot open input device: Specified resource is already allocated.");
case MMSYSERR_BADDEVICEID:
throw Win::Exception("Cannot open input device: Specified device identifier is out of range.");
case MMSYSERR_NODRIVER:
throw Win::Exception("Cannot open input device: No device driver is present.");
case MMSYSERR_NOMEM:
throw Win::Exception("Cannot open input device: Unable to allocate or lock memory.");
case WAVERR_BADFORMAT:
throw Win::Exception("Cannot open input device: Attempted to open with an unsupported waveform-audio format.");
case WAVERR_SYNC:
throw Win::Exception("Cannot open input device: The device is synchronous but waveOutOpen was called without using the WAVE_ALLOWSYNC flag.");
default:
throw Win::Exception ("Cannot open input device: Unknown error");
}
if (!Ok ())
throw Win::Exception ("Opening the input device failed.");
}
void OutDevice::Open (Win::Event & event)
{
_status = ::waveOutOpen (
&_handle,
_devId,
&_format,
reinterpret_cast<DWORD> (event.Get ()),
0, // callback instance data
CALLBACK_EVENT);
if (!Ok ())
throw Win::Exception ("Cannot open device");
}
