Source Code for Module synthDrivers._sapi4

  1  #_sapi4.py 
  2  # Contributed by Serotek Corporation under the GPL 
  3  #A part of NonVisual Desktop Access (NVDA) 
  4  #Copyright (C) 2006-2008 NVDA Contributors <http://www.nvda-project.org/> 
  5  #This file is covered by the GNU General Public License. 
  6  #See the file COPYING for more details. 
  7   
  8  from ctypes import * 
  9  from ctypes.wintypes import * 
 10  from comtypes import * 
 11   
 12  S_OK=0 
 13   
 14  ###comtypes class definitions 
 15   
 16  SVFN_LEN = 262 
 17  LANG_LEN = 64 
 18  TTSDATAFLAG_TAGGED = 1 
 19  TTSI_NAMELEN = SVFN_LEN 
 20  TTSI_STYLELEN = SVFN_LEN 
 21  TTSATTR_MINPITCH = 0 
 22  TTSATTR_MAXPITCH = 0xffff 
 23  TTSATTR_MINSPEED = 0 
 24  TTSATTR_MAXSPEED = 0xffffffff 
 25  TTSATTR_MINVOLUME=0 
 26  TTSATTR_MAXVOLUME=0xffffffff 
 27  TTSFEATURE_VOLUME=2 
 28  TTSFEATURE_SPEED=4 
 29  TTSFEATURE_PITCH=8 
 30  TTSFEATURE_FIXEDAUDIO=1024 
 31   
 32  LANGID = WORD 
 33  QWORD = c_ulonglong 
 34   
 35 -class VOICECHARSET(c_int): 
 36      CHARSET_TEXT = 0 
 37      CHARSET_IPAPHONETIC = 1 
 38      CHARSET_ENGINEPHONETIC = 2 
 39   
 40 -class FILETIME(Structure): 
 41      _fields_ = [("dwLowDateTime", DWORD), ("dwHighDateTime", DWORD)] 
 42   
 43 -class LANGUAGEW(Structure): 
 44      _fields_ = [("LanguageID", LANGID), 
 45                  ("szDialect", c_wchar * LANG_LEN)] 
 46  LANGUAGE = LANGUAGEW 
 47   
 48 -class TTSMODEINFOW(Structure): 
 49      _fields_ = [("gEngine", GUID), 
 50                  ("szMfgName", c_wchar * TTSI_NAMELEN), 
 51                  ("szProductName", c_wchar * TTSI_NAMELEN), 
 52                  ("gModeID", GUID), 
 53                  ("szModeName", c_wchar * TTSI_NAMELEN), 
 54                  ("language", LANGUAGEW), 
 55                  ("szSpeaker", c_wchar * TTSI_NAMELEN), 
 56                  ("szStyle", c_wchar * TTSI_STYLELEN), 
 57                  ("wGender", WORD), 
 58                  ("wAge", WORD), 
 59                  ("dwFeatures", DWORD), 
 60                  ("dwInterfaces", DWORD), 
 61                  ("dwEngineFeatures", DWORD)] 
 62  TTSMODEINFO = TTSMODEINFOW 
 63   
 64 -class SDATA(Structure): 
 65      _fields_ = [("pData", c_void_p), ("dwSize", DWORD)] 
 66   
 67 -class TTSMOUTH(Structure): 
 68      _fields_ = [("bMouthHeight", BYTE), ("bMouthWidth", BYTE), 
 69                  ("bMouthUpturn", BYTE), ("bJawOpen", BYTE), 
 70                  ("bTeethUpperVisible", BYTE), ("bTeethLowerVisible", BYTE), 
 71                  ("bTonguePosn", BYTE), ("bLipTension", BYTE)] 
 72   
 73 -def TextSDATA(text): 
 74      d = SDATA() 
 75      d.pData = cast(c_wchar_p(text), c_void_p) 
 76      d.dwSize = (len(text) + 1) * sizeof(c_wchar) 
 77      return d 
 78   
 79 -class ITTSAttributesW(IUnknown): 
 80      _iid_ = GUID("{1287A280-4A47-101B-931A-00AA0047BA4F}") 
 81   
 82  ITTSAttributesW._methods_ = [ 
 83      STDMETHOD(HRESULT, "PitchGet", [POINTER(WORD)]), 
 84      STDMETHOD(HRESULT, "PitchSet", [WORD]), 
 85      STDMETHOD(HRESULT, "RealTimeGet", [POINTER(DWORD)]), 
 86      STDMETHOD(HRESULT, "RealTimeSet", [DWORD]), 
 87      STDMETHOD(HRESULT, "SpeedGet", [POINTER(DWORD)]), 
 88      STDMETHOD(HRESULT, "SpeedSet", [DWORD]), 
 89      STDMETHOD(HRESULT, "VolumeGet", [POINTER(DWORD)]), 
 90      STDMETHOD(HRESULT, "VolumeSet", [DWORD]) 
 91  ] 
 92   
 93  ITTSAttributes = ITTSAttributesW 
 94   
 95 -class ITTSBufNotifySink(IUnknown): 
 96      _iid_ = GUID("{E4963D40-C743-11cd-80E5-00AA003E4B50}") 
 97   
 98  ITTSBufNotifySink._methods_ = [ 
 99      STDMETHOD(HRESULT, "TextDataDone", [QWORD, DWORD]), 
100      STDMETHOD(HRESULT, "TextDataStarted", [QWORD]), 
101      STDMETHOD(HRESULT, "BookMark", [QWORD, DWORD]), 
102      STDMETHOD(HRESULT, "WordPosition", [QWORD, DWORD]) 
103  ] 
104   
105 -class ITTSCentralW(IUnknown): 
106      _iid_ = GUID("{28016060-4A47-101B-931A-00AA0047BA4F}") 
107   
108  ITTSCentralW._methods_ = [ 
109      STDMETHOD(HRESULT, "Inject", [LPCWSTR]), 
110      STDMETHOD(HRESULT, "ModeGet", [POINTER(TTSMODEINFOW)]), 
111      STDMETHOD(HRESULT, "Phoneme", [VOICECHARSET, DWORD, SDATA, POINTER(SDATA)]), 
112      STDMETHOD(HRESULT, "PosnGet", [POINTER(QWORD)]), 
113      STDMETHOD(HRESULT, "TextData", [VOICECHARSET, DWORD, SDATA, c_void_p, GUID]), 
114      STDMETHOD(HRESULT, "ToFileTime", [POINTER(QWORD), POINTER(FILETIME)]), 
115      STDMETHOD(HRESULT, "AudioPause"), 
116      STDMETHOD(HRESULT, "AudioResume"), 
117      STDMETHOD(HRESULT, "AudioReset"), 
118      STDMETHOD(HRESULT, "Register", [c_void_p, GUID, POINTER(DWORD)]), 
119      STDMETHOD(HRESULT, "UnRegister", [DWORD]) 
120  ] 
121   
122  ITTSCentral = ITTSCentralW 
123   
124 -class IAudioMultiMediaDevice(IUnknown): 
125      _iid_ = GUID("{B68AD320-C743-11cd-80E5-00AA003E4B50}") 
126   
127  IAudioMultiMediaDevice._methods_ = [ 
128      STDMETHOD(HRESULT, "CustomMessage", [c_uint, SDATA]), 
129      STDMETHOD(HRESULT, "DeviceNumGet", [POINTER(DWORD)]), 
130      STDMETHOD(HRESULT, "DeviceNumSet", [DWORD]) 
131  ] 
132   
133 -class ITTSEnumW(IUnknown): 
134      _iid_ = GUID("{6B837B20-4A47-101B-931A-00AA0047BA4F}") 
135   
136  ITTSEnumW._methods_ = [ 
137      STDMETHOD(HRESULT, "Next", [c_ulong, POINTER(TTSMODEINFOW), 
138                                  POINTER(c_ulong)]), 
139      STDMETHOD(HRESULT, "Skip", [c_ulong]), 
140      STDMETHOD(HRESULT, "Reset"), 
141      STDMETHOD(HRESULT, "Clone", [POINTER(POINTER(ITTSEnumW))]), 
142      STDMETHOD(HRESULT, "Select", [GUID, POINTER(POINTER(ITTSCentralW)), 
143                                    POINTER(IUnknown)]) 
144  ] 
145   
146  ITTSEnum = ITTSEnumW 
147   
148 -class ITTSNotifySinkW(IUnknown): 
149      _iid_ = GUID("{C0FA8F40-4A46-101B-931A-00AA0047BA4F}") 
150   
151  ITTSNotifySinkW._methods_ = [ 
152    STDMETHOD(HRESULT, "AttribChanged", [DWORD]), 
153    STDMETHOD(HRESULT, "AudioStart", [QWORD]), 
154    STDMETHOD(HRESULT, "AudioStop", [QWORD]), 
155    STDMETHOD(HRESULT, "Visual", [QWORD, c_wchar, c_wchar, DWORD, 
156                                  POINTER(TTSMOUTH)]) 
157  ] 
158   
159  ITTSNotifySink = ITTSNotifySinkW 
160   
161  CLSID_MMAudioDest = GUID("{CB96B400-C743-11cd-80E5-00AA003E4B50}") 
162  CLSID_TTSEnumerator = GUID("{D67C0280-C743-11cd-80E5-00AA003E4B50}") 
163