// Parameters
// p_voice : The string to set the voice to
// Returns
// true if setting the voice succeeded, false otherwise.
// Description
// Lists the available voice tokens and iterates through them comparing each to p_voice.
// If a token is found that matches p_voice then the voice is set to that token. If p_voice
// doesn't match any of the voices available then returns false, and if setting the voice to
// the matching token fails then also returns false.
bool WindowsSAPI5Narrator::SetVoice(const char* p_voice)
{
USES_CONVERSION;
if(!bInited)
return false;
bool t_success = true;
const WCHAR *t_wvoice = A2W(p_voice);
CComPtr<IEnumSpObjectTokens> cpEnum;// Pointer to token enumerator
ULONG ulIndex = 0, ulCurTokenIndex = 0, ulNumTokens = 0;
// Find out which token corresponds to our voice which is currently in use
ISpObjectToken *pToken = NULL; // Token interface pointer
t_success = _EnumTokens(SPCAT_VOICES, NULL, NULL, &cpEnum);
if (t_success)
t_success = SUCCEEDED(cpEnum->GetCount( &ulNumTokens ));
if (t_success)
t_success = ulNumTokens > 0;
while (t_success && cpEnum->Next(1, &pToken, NULL) == S_OK)
{
CSpDynamicString ppcDesciptionString;
// Get a string which describes the token, in our case, the voice name
t_success = _GetDescription( pToken, &ppcDesciptionString);
// Release the token itself
pToken->Release();
pToken = NULL;
if (t_success)
{
if(wcscmp(ppcDesciptionString, t_wvoice) == 0)
{
ulCurTokenIndex = ulIndex;
break;
}
ulIndex++;
}
}
if (t_success)
t_success = ulIndex < ulNumTokens;
if (t_success)
{
cpEnum->Item( ulCurTokenIndex, &pToken );
t_success = SUCCEEDED(m_cpVoice->SetVoice( pToken ));
pToken->Release();
}
return t_success;
}
HRESULT LoadVoices(void){
HRESULT hr;
ISpObjectToken *pToken;
IEnumSpObjectTokens *cpEnum;
wchar_t *pDescription, *p, *ptr, szBuffer[64];
hr = _EnumTokens(SPCAT_VOICES, NULL, NULL, &cpEnum);
if(hr == S_OK){
g_VoicesCount = 0;
pDescription = (wchar_t *)CoTaskMemAlloc(128 * sizeof(wchar_t));
while(IEnumSpObjectTokens_Next(cpEnum, 1, &pToken, NULL) == S_OK){
hr = _GetDescription(pToken, &pDescription);
if(SUCCEEDED(hr)){
g_VoicesCount++;
wcscpy(g_PVoices[g_VoicesCount - 1].name, pDescription);
g_PVoices[g_VoicesCount - 1].token = pToken;
GetPrivateProfileStringW(S_VOICES, pDescription, NULL, szBuffer, 64, g_NotePaths.INIFile);
if(*szBuffer){
p = wcstok(szBuffer, L"|", &ptr);
g_PVoices[g_VoicesCount - 1].rate = _wtol(p);
p = wcstok(NULL, L"|", &ptr);
g_PVoices[g_VoicesCount - 1].volume = (unsigned short)_wtoi(p);
g_PVoices[g_VoicesCount - 1].pitch = (short)_wtoi(ptr);
}
else{
ISpVoice *pVoice = CreateVoice();
ISpVoice_SetVoice(pVoice, (ISpObjectToken *)g_PVoices[g_VoicesCount - 1].token);
ISpVoice_GetVolume(pVoice, &g_PVoices[g_VoicesCount - 1].volume);
ISpVoice_GetRate(pVoice, &g_PVoices[g_VoicesCount - 1].rate);
g_PVoices[g_VoicesCount - 1].pitch = 0;
ReleaseVoice(pVoice);
}
if(g_VoicesCount == NELEMS(g_PVoices))
break;
}
if (FAILED(hr))
{
ISpObjectToken_Release(pToken);
break;
}
}
CoTaskMemFree(pDescription);
}
else
{
hr = SPERR_NO_MORE_ITEMS;
}
return hr;
}
// Returns
// true if listing voices suceeeded, false otherwise.
// Description
// Iterates through the appropriate available voices and calls p_callback to return each voice.
// If p_gender is kNarratorGenderMale then only male voices are returned, if p_gender is kNarratorGenderFemale
// then only female voices are returned, otherwise all voices are returned. Can return false either if unable
// to get a token enumerator for the voices or if out of memory when listing voices.
bool WindowsSAPI5Narrator::ListVoices(NarratorGender p_gender, NarratorListVoicesCallback p_callback, void* p_context)
{
bool t_success = true;
USES_CONVERSION;
if(!bInited)
return false;
ISpObjectToken *pToken = NULL; // Token interface pointer
CComPtr<IEnumSpObjectTokens> cpEnum;// Pointer to token enumerator
ULONG ulIndex = 0;
CSpDynamicString* ppcDesciptionString;
ppcDesciptionString = NULL;
WCHAR** ppszTokenIds;
ppszTokenIds = NULL;
ULONG ulNumTokens;
WCHAR *szRequiredAttributes = NULL;
// Set the required attributes field for the enum if we have special needs
// based on our LPARAM in
if (p_gender == kNarratorGenderMale)
{
szRequiredAttributes = L"Gender=Male";
}
else if (p_gender == kNarratorGenderFemale)
{
szRequiredAttributes = L"Gender=Female";
}
else if (p_gender == kNarratorGenderNeuter)
{
szRequiredAttributes = L"Gender=Neutral";
}
// Get a token enumerator for tts voices available
t_success = _EnumTokens(SPCAT_VOICES, szRequiredAttributes, NULL, &cpEnum);
if (t_success)
{
t_success = SUCCEEDED(cpEnum->GetCount( &ulNumTokens ));
if ( t_success && 0 != ulNumTokens )
{
ppcDesciptionString = new CSpDynamicString [ulNumTokens];
if ( NULL == ppcDesciptionString )
{
/* TODO - CLEANUP */
return false;
}
ppszTokenIds = new WCHAR* [ulNumTokens];
if ( NULL == ppszTokenIds )
{
/* TODO - CLEANUP */
return false;
}
ZeroMemory( ppszTokenIds, ulNumTokens*sizeof( WCHAR* ) );
// Get the next token in the enumeration
// State is maintained in the enumerator
while (t_success && cpEnum->Next(1, &pToken, NULL) == S_OK)
{
// Get a string which describes the token, in our case, the voice name
t_success = SUCCEEDED(_GetDescription( pToken, &ppcDesciptionString[ulIndex] ));
// Get the token id, for a low overhead way to retrieve the token later
// without holding on to the object itself
if (t_success)
t_success = SUCCEEDED(pToken->GetId( &ppszTokenIds[ulIndex] ));
ulIndex++;
// Release the token itself
pToken->Release();
pToken = NULL;
}
}
// if we've failed to properly initialize, then we should completely shut-down
if ( !t_success )
{
if ( pToken )
{
pToken->Release();
}
ppszTokenIds = NULL;
ppcDesciptionString = NULL;
ulNumTokens = 0;
}
for ( ulIndex = 0; ulIndex < ulNumTokens; ulIndex++ )
{
const char* string = W2A(ppcDesciptionString[ulIndex]);
p_callback(p_context, p_gender, (const char *)string);
}
ManageCleanup( ppszTokenIds, ppcDesciptionString, ulNumTokens );
}
return t_success;
}
