Windows语音识别

#include <windows.h> #include <atlstr.h> #include <sphelper.h> #include <sapi.h> #pragma comment(lib,"sapi.lib") #define GID_CMD_GR 333333 #define WM_RECOEVENT WM_USER+1 LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); TCHAR szAppName[]=TEXT("Hello"); BOOL b_initSR; BOOL b_Cmd_Grammar; CComPtr<ISpRecoContext>m_cpRecoCtxt; //语音识别程序接口 CComPtr<ISpRecoGrammar>m_cpCmdGramma; //识别语法 CComPtr<ISpRecognizer>m_cpRecoEngine; //语音识别引擎 int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,PSTR szCmdLine,int iCmdShow) { HWND hwnd; MSG msg; WNDCLASS wndclass; wndclass.cbClsExtra =0; wndclass.cbWndExtra =0; wndclass.hbrBackground =(HBRUSH)GetStockObject(WHITE_BRUSH); wndclass.hCursor =LoadCursor(NULL,IDC_ARROW); wndclass.hIcon =LoadIcon(NULL,IDI_APPLICATION); wndclass.hInstance =hInstance; wndclass.lpfnWndProc =WndProc; wndclass.lpszClassName =szAppName; wndclass.lpszMenuName =NULL; wndclass.style =CS_HREDRAW|CS_VREDRAW; if(!RegisterClass(&wndclass)) { MessageBox(NULL,TEXT("This program requires Windows NT!"),szAppName,MB_ICONERROR); return 0; } hwnd=CreateWindow(szAppName, TEXT("Windows Speech"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hwnd,iCmdShow); UpdateWindow(hwnd); while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WndProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam) { HDC hdc; PAINTSTRUCT ps; switch(message) { case WM_CREATE: { //初始化COM端口 ::CoInitializeEx(NULL,COINIT_APARTMENTTHREADED); //创建识别引擎COM实例为共享型 HRESULT hr=m_cpRecoEngine.CoCreateInstance(CLSID_SpSharedRecognizer); //创建识别上下文接口 if(SUCCEEDED(hr)) { hr=m_cpRecoEngine->CreateRecoContext(&m_cpRecoCtxt); } else MessageBox(hwnd,TEXT("error1"),TEXT("error"),S_OK); //设置识别消息,使计算机时刻监听语音消息 if(SUCCEEDED(hr)) { hr=m_cpRecoCtxt->SetNotifyWindowMessage(hwnd,WM_RECOEVENT,0,0); } else MessageBox(hwnd,TEXT("error2"),TEXT("error"),S_OK); //设置我们感兴趣的事件 if(SUCCEEDED(hr)) { ULONGLONG ullMyEvents=SPFEI(SPEI_SOUND_START)|SPFEI(SPEI_RECOGNITION)|SPFEI(SPEI_SOUND_END); hr=m_cpRecoCtxt->SetInterest(ullMyEvents,ullMyEvents); } else MessageBox(hwnd,TEXT("error3"),TEXT("error"),S_OK); //创建语法规则 b_Cmd_Grammar=TRUE; if(FAILED(hr)) { MessageBox(hwnd,TEXT("error4"),TEXT("error"),S_OK); } hr=m_cpRecoCtxt->CreateGrammar(GID_CMD_GR,&m_cpCmdGramma); WCHAR wszXMLFile[20]=L""; MultiByteToWideChar(CP_ACP,0,(LPCSTR)"er.xml",-1,wszXMLFile,256); hr=m_cpCmdGramma->LoadCmdFromFile(wszXMLFile,SPLO_DYNAMIC); if(FAILED(hr)) { MessageBox(hwnd,TEXT("error5"),TEXT("error"),S_OK); } b_initSR=TRUE; //在开始识别时，激活语法进行识别 hr=m_cpCmdGramma->SetRuleState(NULL,NULL,SPRS_ACTIVE); return 0; } case WM_RECOEVENT: { RECT rect; GetClientRect(hwnd,&rect); hdc=GetDC(hwnd); USES_CONVERSION; CSpEvent event; while(event.GetFrom(m_cpRecoCtxt)==S_OK) { switch(event.eEventId) { case SPEI_RECOGNITION: { static const WCHAR wszUnrecognized[]=L"<Unrecognized>"; CSpDynamicString dstrText; //取得识别结果 if(FAILED(event.RecoResult()->GetText(SP_GETWHOLEPHRASE,SP_GETWHOLEPHRASE,TRUE,&dstrText,NULL))) { dstrText=wszUnrecognized; } BSTR SRout; dstrText.CopyToBSTR(&SRout); CString Recstring; Recstring.Empty(); Recstring=SRout; if(b_Cmd_Grammar) { if(Recstring=="下") { DrawText(hdc,TEXT("hello"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER); } if(Recstring=="上") { DrawText(hdc,TEXT("ho"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER); } } } } } return TRUE; } case WM_PAINT: hdc=BeginPaint(hwnd,&ps); EndPaint(hwnd,&ps); return 0; case WM_DESTROY: PostQuitMessage(0); return 0; } return DefWindowProc(hwnd,message,wParam,lParam); }