C++ (Cpp) IDirectSound8::Initialize Examples

Example #1

File: main.cpp Project: hoangduit/reactos

BOOL getCurrentChannelConfig()
{
	IDirectSound8* ds;
	DWORD          speakerConfig;
	LPGUID         guid = NULL;

	DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);

	if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
		return FALSE;
	}

	ds->Initialize(NULL);

	if (ds->GetSpeakerConfig(&speakerConfig) != S_OK) {
		PrintLastError("GetSpeakerConfig()");
		return FALSE;
	}

	if (ds) {
		ds->Release();
	}
	if (guid) {
		LocalFree(guid);
	}

	switch (DSSPEAKER_CONFIG(speakerConfig)) {
		case DSSPEAKER_STEREO:  currentChannelCount = 2; return TRUE;
		case DSSPEAKER_QUAD:    currentChannelCount = 4; return TRUE;
		case DSSPEAKER_5POINT1: currentChannelCount = 6; return TRUE;
		case DSSPEAKER_7POINT1: currentChannelCount = 8; return TRUE;
	}

	return FALSE;
}

Example #2

File: main.cpp Project: hoangduit/reactos

BOOL setCurrentChannelConfig()
{
	IDirectSound8* ds;
	DWORD          speakerConfig;
	LPGUID         guid = NULL;

	DirectSoundEnumerate((LPDSENUMCALLBACK)DSEnumProc, (VOID*)&guid);

	if (DirectSoundCreate8(guid, &ds, NULL) != S_OK) {
		PrintLastError("DirectSoundCreate8()");
		return FALSE;
	}


	ds->Initialize(NULL);

	switch (currentChannelCount) {
		case 2: speakerConfig = DSSPEAKER_STEREO;  break;
		case 4: speakerConfig = DSSPEAKER_QUAD;    break;
		case 6: speakerConfig = DSSPEAKER_5POINT1; break;
		case 8: speakerConfig = DSSPEAKER_7POINT1; break;
        default: speakerConfig = DSSPEAKER_STEREO; break;
	}

	if (ds->SetSpeakerConfig(speakerConfig) != S_OK) {
		PrintLastError("SetSpeakerConfig()");
		return FALSE;
	}

	if (ds) {
		ds->Release();
	}
	if (guid) {
		LocalFree(guid);
	}


	return FALSE;
}