rapi.cpp

windows ce开发技巧与实例光盘代码

// RAPI.cpp: implementation of the CRAPI class.
//
//////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "RAPI.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

CRAPI::CRAPI() 
{
	InitializeSettings();
}
CRAPI::~CRAPI() 
{
	if( !hInst )
	{
		FreeLibrary(hInst);
	}
}

void CRAPI::InitializeSettings()
{
	hInst = NULL;
	LPTSTR pPath = new TCHAR[MAX_PATH + 10];
	GetSystemDirectory(pPath, MAX_PATH);
	CString str(pPath);
	str += "\\rapi.dll";
	hInst = LoadLibrary(str);
	if (hInst)
	{
		CeRapiInit      =		(FARPROC) GetProcAddress(hInst, "CeRapiInit");
		CeRapiUninit    =		(FARPROC) GetProcAddress(hInst, "CeRapiUninit");
		CeCreateFile    =		(pfnFunc0)GetProcAddress(hInst, "CeCreateFile");
		CeWriteFile     =		(pfnFunc1)GetProcAddress(hInst, "CeWriteFile");
		CeCloseHandle   =		(pfnFunc2)GetProcAddress(hInst, "CeCloseHandle");
		CeFindFirstFile =		(pfnFunc3)GetProcAddress(hInst, "CeFindFirstFile");
		CeGetFileSize	=		(pfnFunc4)GetProcAddress(hInst, "CeGetFileSize");
		CeReadFile		=		(pfnFunc5)GetProcAddress(hInst, "CeReadFile");
		CeFindNextFile  = 		(pfnFunc6)GetProcAddress(hInst, "CeFindNextFile");
		CeCreateDirectory =		(pfnFunc7)GetProcAddress(hInst, "CeCreateDirectory");
		CeCreateProcess  =		(pfnFunc8)GetProcAddress(hInst, "CeCreateProcess");
		CeGetSystemInfo  =		(pfnFunc9)GetProcAddress(hInst, "CeGetSystemInfo");
		CeDeleteFile  =			(pfnFunc10)GetProcAddress(hInst, "CeDeleteFile");
		CeRegOpenKeyEx  =		(pfnFunc11)GetProcAddress(hInst, "CeRegOpenKeyEx");
		CeRegCloseKey  =		(pfnFunc12)GetProcAddress(hInst, "CeRegCloseKey");
	}
	delete []pPath;
}

#define BUFFER_SIZE 10240

void CRAPI::CopyFilePCtoWinCE(CString strFileNamePC, CString strFileNamePPC)
{
	CFile oldFile; 
	oldFile.Open(strFileNamePC, CFile::modeRead |CFile::typeBinary); 
	int iLen = oldFile.GetLength(); 
	iLen = iLen / BUFFER_SIZE; 
	BSTR bstr = strFileNamePPC.AllocSysString(); 
	SysFreeString(bstr); 
	CeRapiInit(); 
	HANDLE h = CeCreateFile(bstr, GENERIC_READ | GENERIC_WRITE, 0, NULL, 
		OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); 
	char cTemp[BUFFER_SIZE]; 
	DWORD nbytes; 
	int iTotBytes = 0; 
	int iReaded=0; 
	while((iReaded=oldFile.Read(&cTemp, BUFFER_SIZE)) >= 1) 
		CeWriteFile(h, &cTemp, (DWORD)iReaded, &nbytes, NULL); 
	CeCloseHandle(h); 
	oldFile.Close(); 
	CeRapiUninit(); 
}

void CRAPI::CopyFileWinCEtoPC(CString strFileNamePPC, CString strFileNamePC)
{
	BSTR bstr = strFileNamePPC.AllocSysString(); 
	SysFreeString(bstr); 
	CeRapiInit(); 
	
	HANDLE h; 
	h = CeCreateFile(bstr, GENERIC_READ, FILE_SHARE_READ, NULL, 
		OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); 
	
	CFile oldFile; 
	oldFile.Open(strFileNamePC, CFile::modeCreate | CFile::modeWrite); 
	
	char cTemp[BUFFER_SIZE]; 
	DWORD nbytes; 
	CString s; 
	
	while(CeReadFile(h, &cTemp, (DWORD)BUFFER_SIZE, &nbytes, NULL) == TRUE) 
	{ 
		oldFile.Write(&cTemp, nbytes); 
		if(nbytes < BUFFER_SIZE) 
			break; 
	} 
	CeCloseHandle(h); 
	oldFile.Close(); 
	CeRapiUninit();  
}

BOOL CRAPI::DeleteFileFromCE(CString strFileNamePPC)
{
	BSTR bstr = strFileNamePPC.AllocSysString(); 
	SysFreeString(bstr); 
	CeRapiInit();
	BOOL bRet = CeDeleteFile(bstr);
	CeRapiUninit();
	return bRet;
}

CString CRAPI::GetCStringFromFile(CString strFileName)
{
	CString strOut;
	LPSTR pText = NULL;
	int iLen;
	CFile f;
	if (f.Open(strFileName, CFile::modeReadWrite))
	{
		iLen = f.GetLength();
		pText = new char[iLen + 1];
		f.Read(pText, iLen);
		pText[iLen] = '\0';
		CString str(pText);
		strOut = str;
		delete pText;
		f.Close();
	}
	else
	{
		strOut = "Error";
	}
	return strOut;
}

LONG CRAPI::RegOpenKeyExFromCE(HKEY hKey, LPCWSTR lpsz, DWORD dw, REGSAM reg, PHKEY phKey)
{
	CeRapiInit();
	HRESULT hResult=CeRegOpenKeyEx(hKey,lpsz,dw,reg,phKey);
	CeRapiUninit();
	return hResult;
}

LONG CRAPI::RegCloseKeyFromCE(HKEY hKey)
{
	CeRapiInit();
	HRESULT hResult = CeRegCloseKey(hKey);
	CeRapiUninit();
	return hResult;
}