基于Visual C++2010与windows SDK fo windows7开发windows7平台的tabletpc应用(1)-汉字手写轨迹输入

搭建好Visual C++2010与windows SDK fo windows7的开发平台以后，

小试牛刀，检验下开发windows7的下的tabletpc应用，

 

 

代码注释如下

 

#include <windows.h>#include <comdef.h>#include <msinkaut.h>#include <msinkaut_i.c> //包含windows SDK for windows7的核心tabletpc头文件#include "resource.h"const TCHAR* gc_szAppName = TEXT("Basic Recognition");// 建立轨迹指针，识别指针，轨迹画板指针IInkCollector * g_pIInkCollector = NULL;IInkDisp * g_pIInkDisp = NULL;IInkRecognizerContext * g_pIInkRecoContext = NULL;/////////////////////////////////////////////////////////////清除Com指针/////////////////////////////////////////////////////////void CleanUp() // Release all objects{ if (g_pIInkRecoContext != NULL) { g_pIInkRecoContext->Release(); g_pIInkRecoContext = NULL; } if (g_pIInkDisp != NULL) { g_pIInkDisp->Release(); g_pIInkDisp = NULL; } if (g_pIInkCollector != NULL) { g_pIInkCollector->Release(); g_pIInkCollector = NULL; }}windows窗口消息循环LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam){ switch (uMsg) { case WM_CREATE: { //窗口消息创建，注册窗口，并创建com指针接口 HRESULT hr; hr = CoCreateInstance(CLSID_InkRecognizerContext, NULL, CLSCTX_INPROC_SERVER, IID_IInkRecognizerContext, (void **) &g_pIInkRecoContext); if (FAILED(hr)) { return -1; } hr = CoCreateInstance(CLSID_InkCollector, NULL, CLSCTX_INPROC_SERVER, IID_IInkCollector, (void **) &g_pIInkCollector); if (FAILED(hr)) return -1; hr = g_pIInkCollector->get_Ink(&g_pIInkDisp); if (FAILED(hr)) return -1; hr = g_pIInkCollector->put_hWnd((long)hwnd); if (FAILED(hr)) return -1; hr = g_pIInkCollector->put_Enabled(VARIANT_TRUE); if (FAILED(hr)) return -1; break; } case WM_DESTROY: //退出消息循环，结束程序 PostQuitMessage(0); break; case WM_COMMAND://清除轨迹 if (wParam == ID_CLEAR) { g_pIInkDisp->DeleteStrokes(0); InvalidateRect(hwnd, NULL, TRUE); } else if (wParam == ID_RECOGNIZE) { //获取识别结果，并显示最优化识别结果 HCURSOR hCursor = ::SetCursor(::LoadCursor(NULL, IDC_WAIT)); //获取轨迹指针用于识别 IInkStrokes* pIInkStrokes = NULL; HRESULT hr = g_pIInkDisp->get_Strokes(&pIInkStrokes); if (SUCCEEDED(hr)) { hr = g_pIInkRecoContext->putref_Strokes(pIInkStrokes); if (SUCCEEDED(hr)) { //利用识别指针获取识别结果 IInkRecognitionResult* pIInkRecoResult = NULL; InkRecognitionStatus RecognitionStatus; hr = g_pIInkRecoContext->Recognize(&RecognitionStatus, &pIInkRecoResult); if (SUCCEEDED(hr) && (pIInkRecoResult!= NULL)) { BSTR bstrBestResult = NULL; hr = pIInkRecoResult->get_TopString(&bstrBestResult); pIInkRecoResult->Release(); pIInkRecoResult = NULL; if (SUCCEEDED(hr) && bstrBestResult) { MessageBoxW(hwnd, bstrBestResult, L"识别结果", MB_OK); SysFreeString(bstrBestResult); } } g_pIInkRecoContext->putref_Strokes(NULL); } pIInkStrokes->Release(); } ::SetCursor(hCursor); } else { return DefWindowProc(hwnd, uMsg, wParam, lParam); } break; default: return DefWindowProc(hwnd, uMsg, wParam, lParam); } return 0;}//注册windows 窗口类名BOOL RegisterWindowClass(HINSTANCE hInstance){ WNDCLASSEX WndClassEx; WndClassEx.cbSize = sizeof(WndClassEx); WndClassEx.style = CS_HREDRAW | CS_VREDRAW; WndClassEx.lpfnWndProc = WndProc; WndClassEx.cbClsExtra = 0; WndClassEx.cbWndExtra = 0; WndClassEx.hInstance = hInstance; WndClassEx.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON)); WndClassEx.hIconSm = WndClassEx.hIcon; WndClassEx.hCursor = LoadCursor(NULL, IDC_ARROW); WndClassEx.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); WndClassEx.lpszMenuName = MAKEINTRESOURCE(IDR_MENU); WndClassEx.lpszClassName = gc_szAppName; if (!RegisterClassEx(&WndClassEx)) { return false; } return true;}int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE , LPSTR , int nCmdShow){ if (!RegisterWindowClass(hInstance)) return 0; CoInitialize(NULL);//创建窗口 HWND hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, gc_szAppName, gc_szAppName, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); if (NULL == hWnd) { return 0; } // 显示窗口 ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); // 开始消息循环 MSG msg; while (GetMessage(&msg, NULL, 0, 0) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } CleanUp(); CoUninitialize(); return msg.wParam;}   

 

VS2010启动界面

 

 

 

VS2010项目开发

 

 

 

 

程序界面，以及轨迹

 

 轨迹识别结果

 

 清除笔迹

 

 

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