dictionary.h

这个程序主要是在WinCE环境下开发访问SQLCE数据库程序的例子程序

// Dictionary.h : Declaration of the CDictionary

#pragma once
#ifdef STANDARDSHELL_UI_MODEL
#include "resource.h"
#endif
#ifdef POCKETPC2003_UI_MODEL
#include "resourceppc.h"
#endif
#ifdef SMARTPHONE2003_UI_MODEL
#include "resourcesp.h"
#endif
#ifdef AYGSHELL_UI_MODEL
#include "resourceayg.h"
#endif

#include "ALTCOMM.h"


#if defined(_WIN32_WCE) && !defined(_CE_DCOM) && !defined(_CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA)
#error "Single-threaded COM objects are not properly supported on Windows CE platform, such as the Windows Mobile platforms that do not include full DCOM support. Define _CE_ALLOW_SINGLE_THREADED_OBJECTS_IN_MTA to force ATL to support creating single-thread COM object's and allow use of it's single-threaded COM object implementations. The threading model in your rgs file was set to 'Free' as that is the only threading model supported in non DCOM Windows CE platforms."
#endif

#define MaxWordCount 10000
#define MaxWordLength 32

//数据字典翻译
struct DictWord {
	TCHAR wordFromLang[MaxWordLength];
	TCHAR wordToLang[MaxWordLength];
	//bool bChange;
};

// CDictionary

class ATL_NO_VTABLE CDictionary :
	public CComObjectRootEx<CComSingleThreadModel>,
	public CComCoClass<CDictionary, &CLSID_Dictionary>,
	public IDictionary
{
public:
	CDictionary()
		: m_wordcount(0)
		, m_dictname(NULL)
		, m_lchange(0)
	{
		for(int i=0; i<MaxWordCount; i++)
		{
			m_pData[i].wordFromLang[0] = 0;
			m_pData[i].wordToLang[0]   = 0;
		}
		m_dictname = new TCHAR[140];
	}

//#ifndef _CE_DCOM
DECLARE_REGISTRY_RESOURCEID(IDR_DICTIONARY)
//#endif


BEGIN_COM_MAP(CDictionary)
	COM_INTERFACE_ENTRY(IDictionary)
END_COM_MAP()



	DECLARE_PROTECT_FINAL_CONSTRUCT()

	HRESULT FinalConstruct()
	{
		return S_OK;
	}

	void FinalRelease()
	{
		delete m_dictname;
	}

public:

	STDMETHOD(InitialDict)(BSTR bStrDict);
	STDMETHOD(AddWord)(BSTR SrcWord, BSTR DestWord);
	STDMETHOD(ModifyWord)(BSTR SrcWord, BSTR DestWord);
	STDMETHOD(DeleteWord)(BSTR bStrWord);
	STDMETHOD(QueryWord)(BSTR bStrWord, BSTR* bStrDest);
	STDMETHOD(SyncDictLib)(void);
	STDMETHOD(Hello)(LONG HelloNo, LONG* pHello);
private:
	// 修改字符
	long m_lchange;
	// 数据词典数
	long m_wordcount;
	// 数据词典名
	TCHAR *m_dictname;

	IDBCreateSession *m_pIDBCreateSession;
	// 从BSTR字符串转换到CHAR型
	struct DictWord m_pData[MaxWordCount];
	//函数
	STDMETHODIMP ConvertBstrToChar(BSTR pbStrFrom, TCHAR * pcTo);
	// //根据单词查找字典顺序
	STDMETHODIMP GetIndexOfWord(BSTR bStrWordFnd, long * lIndex);
	// 打开字典数据库
	HRESULT OpenDatabase(void);
	// 创建数据库
	HRESULT CreateDatabase(void);
	// 执行脚本
	HRESULT ExecuteSQL(ICommandText * pICmdText, WCHAR * pwszQuery);
	// 初始化内存数组
	HRESULT InitDictWord(void);
	BOOL GetColumnOrdinal(DBCOLUMNINFO* pDBColumnInfo, DWORD dwNumCols, WCHAR* pwszColName, DWORD* pOrdinal);
};

OBJECT_ENTRY_AUTO(__uuidof(Dictionary), CDictionary)