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ExcelLib.cpp
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//#include "stdafx.h"
#include "pch.h"
#include "ExcelLib.h"
CExcelLib::CExcelLib(void)
{
HRESULT hResult;
// COM 초기화
hResult = CoInitialize(NULL);
if(hResult == S_OK)
{
m_fCOMInited = TRUE;
}
else
{
m_fCOMInited = FALSE;
}
m_fInit = FALSE;
memset(&m_stLastPosition, 0, sizeof(m_stLastPosition));
memset(m_wsExcelFileName, 0, sizeof(m_wsExcelFileName));
m_nActiveSheet = 0;
}
CExcelLib::~CExcelLib(void)
{
// COM 해제
if(m_fCOMInited == TRUE)
{
CoUninitialize();
}
}
/****************************************************************************************************/
/* INTERFACE FUNCTIONS */
/****************************************************************************************************/
// Excel library를 초기화한다.
BOOL CExcelLib::InitExcelLib(void)
{
CLSID stClassID;
VARIANT stVariantResult;
HRESULT hResult;
hResult = CLSIDFromProgID(L"Excel.Application", &stClassID);
if(FAILED(hResult))
{
// CLSIDFromProgID()가 실패하였습니다.
return FALSE;
}
// Application 생성
hResult = CoCreateInstance(stClassID, NULL, CLSCTX_LOCAL_SERVER, IID_IDispatch, (void **)&m_stProperties.pXlApp);
if(FAILED(hResult))
{
// 엑셀이 등록되어 있지 않습니다.
return FALSE;
}
// Workbooks 생성
VariantInit(&stVariantResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &stVariantResult, m_stProperties.pXlApp, L"Workbooks", 0);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlBooks = stVariantResult.pdispVal;
m_fInit = TRUE;
return TRUE;
}
// 인스턴스를 초기화한다.
BOOL CExcelLib::CreateExcel(void)
{
VARIANT stVariantResult;
HRESULT hResult;
hResult = InitExcelLib();
if(hResult == FALSE)
{
return FALSE;
}
// Call Workbooks.Add() to get a new workbook...
VariantInit(&stVariantResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &stVariantResult, m_stProperties.pXlBooks, L"Add", 0);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlBook = stVariantResult.pdispVal;
VariantInit(&stVariantResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &stVariantResult, m_stProperties.pXlApp, L"Sheets", 0);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheets = stVariantResult.pdispVal;
VariantInit(&stVariantResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &stVariantResult, m_stProperties.pXlApp, L"ActiveSheet", 0);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = stVariantResult.pdispVal;
return TRUE;
}
// 인스턴스를 초기화한다.
BOOL CExcelLib::OpenExcelFile(TCHAR *pwsFileName)
{
VARIANT stVariantResult;
VARIANT vaPath;
HRESULT hResult;
BOOL bResult;
bResult = InitExcelLib();
if(bResult == FALSE)
{
return FALSE;
}
if(pwsFileName == NULL)
{
// 입력된 파일 이름이 잘못되었습니다.
return FALSE;
}
_bstr_t strFile = pwsFileName;
if(_access((char *)strFile, 0))
{
return FALSE;
}
VariantInit(&stVariantResult);
_bstr_t str = pwsFileName;
vaPath.vt = VT_BSTR;
vaPath.bstrVal = ::SysAllocString(str);
hResult = AutoWrap(DISPATCH_METHOD, &stVariantResult, m_stProperties.pXlBooks, L"Open", 1, vaPath);
if(hResult == FALSE)
{
SysFreeString(vaPath.bstrVal);
return FALSE;
}
m_stProperties.pXlBook = stVariantResult.pdispVal;
SysFreeString(vaPath.bstrVal);
// Sheets 구하기
VariantInit(&stVariantResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &stVariantResult, m_stProperties.pXlApp, L"Sheets", 0);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheets = stVariantResult.pdispVal;
wcscpy(m_wsExcelFileName, pwsFileName);
return TRUE;
}
// 파일을 닫고 인스턴스를 종료한다.
BOOL CExcelLib::CloseExcelFile(void)
{
if(!CheckInit())
{
return FALSE;
}
AutoWrap(DISPATCH_METHOD, NULL, m_stProperties.pXlApp, L"Quit", 0);
if(m_stProperties.pXlSheet != NULL)
{
m_stProperties.pXlSheet->Release();
}
m_stProperties.pXlSheets->Release();
m_stProperties.pXlBook->Release();
m_stProperties.pXlBooks->Release();
m_stProperties.pXlApp->Release();
return TRUE;
}
// 파일을 저장한다.
BOOL CExcelLib::SaveExcelFile(void)
{
HRESULT hResult;
if(!CheckInit())
{
return FALSE;
}
hResult = AutoWrap(DISPATCH_METHOD, NULL, m_stProperties.pXlApp, L"Save", 0);
if(hResult == FALSE)
{
return FALSE;
}
return TRUE;
}
BOOL CExcelLib::SaveAs(TCHAR *pwsFileName)
{
_bstr_t strFileName;
VARIANT vaParam, vaNop;
strFileName = pwsFileName;
vaNop.vt = VT_NULL;
vaParam.vt = VT_BSTR;
vaParam.bstrVal = ::SysAllocString(strFileName);
AutoWrap(DISPATCH_METHOD, NULL, m_stProperties.pXlBook, L"SaveAs", 9, vaNop, vaNop, vaNop, vaNop, vaNop, vaNop, vaNop, vaNop, vaParam);
return TRUE;
}
// Excel 창을 보이게 하거나, 보이지 않게 한다.
BOOL CExcelLib::SetVisible(BOOL fOn)
{
VARIANT x;
HRESULT hResult;
if(!CheckInit())
{
return FALSE;
}
x.vt = VT_I4;
x.lVal = fOn ? 1 : 0;
hResult = AutoWrap(DISPATCH_PROPERTYPUT, NULL, m_stProperties.pXlApp, L"Visible", 1, x);
if(hResult == FALSE)
{
return FALSE;
}
return TRUE;
}
// Sheet 갯수를 구한다.
DWORD CExcelLib::GetSheetCount(void)
{
VARIANT vaResult;
HRESULT hResult;
if(!CheckInit())
{
return FALSE;
}
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlSheets, 0x76, 0);
if(hResult == FALSE)
{
return FALSE;
}
return vaResult.lVal;
}
// Sheet의 이름을 가져온다.
BOOL CExcelLib::GetSheetName(DWORD dwSheetNumber, TCHAR *pwsSheetName)
{
VARIANT vaResult;
DWORD dwOldSheet;
HRESULT hResult;
dwOldSheet = m_nActiveSheet;
SetActiveSheet(dwSheetNumber);
/*
CString result;
invokeHelper(0x6e, DISPATCH_PROPERTYGET, VT_BSTR, (void*)&result, NULL);
return result;
*/
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlSheet, 0x6e, 0);
if(hResult == FALSE)
{
return FALSE;
}
memcpy(pwsSheetName, vaResult.pbstrVal, wcslen((wchar_t *)vaResult.pbstrVal)*2);
SetActiveSheet(dwOldSheet);
return TRUE;
}
// Sheet이름을 변경한다.
BOOL CExcelLib::ChangeSheetName(DWORD dwSheetNumber, TCHAR *pwsSheetName)
{
VARIANT vaResult;
HRESULT hResult;
DWORD dwOldSheet;
dwOldSheet = m_nActiveSheet;
SetActiveSheet(dwSheetNumber);
//Select the sheet for changing the name
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_METHOD, &vaResult, m_stProperties.pXlSheet, L"Select", 0);
if(hResult == FALSE)
{
return FALSE;
}
//Change the name of sheet
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYPUT, &vaResult, m_stProperties.pXlSheet, L"name", 1, COleVariant(pwsSheetName));
if(hResult == FALSE)
{
return FALSE;
}
SetActiveSheet(dwOldSheet);
return TRUE;
}
// Sheet를 추가한다.
BOOL CExcelLib::AddSheet(TCHAR *pwsSheetName)
{
VARIANT vaResult;
HRESULT hResult;
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlSheets, L"Add", 0);
if(hResult == FALSE)
{
return FALSE;
}
// 새로 추가한 Sheet를 현재의 Sheet로 한다.
m_stProperties.pXlSheet = vaResult.pdispVal;
//Select the sheet for changing the name
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_METHOD, &vaResult, m_stProperties.pXlSheet, L"Select", 0);
if(hResult == FALSE)
{
return FALSE;
}
//Change the name of sheet to GEO
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYPUT, &vaResult, m_stProperties.pXlSheet, L"name", 1, COleVariant(pwsSheetName));
if(hResult == FALSE)
{
return FALSE;
}
return TRUE;
}
// Sheet을 선택한다.
BOOL CExcelLib::SetActiveSheet(INT nSheetNum)
{
HRESULT hResult;
VARIANT vaResult;
VARIANT vaSheet;
if(!CheckInit())
{
return FALSE;
}
VariantInit(&vaResult);
vaSheet.vt = VT_I4;
vaSheet.lVal = nSheetNum;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlApp, L"Worksheets", 1, vaSheet);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = vaResult.pdispVal;
m_nActiveSheet = nSheetNum;
return TRUE;
}
// 원하는 칼럼에서 데이터를 읽어온다.
BOOL CExcelLib::GetData(DWORD dwX, DWORD dwY, TCHAR *pwsOut, DWORD dwBufferSize)
{
_bstr_t strPosition;
_bstr_t strData;
TCHAR wsColumn[36];
HRESULT hResult;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
if(pwsOut == NULL)
{
return FALSE;
}
memset(wsColumn, 0, 36);
bResult = XYToColumn(dwX, dwY, wsColumn);
if(bResult == FALSE)
{
return FALSE;
}
// XN ~ XN
strPosition = wsColumn;
strPosition += ":";
strPosition += wsColumn;
IDispatch *pXlRange;
{
VARIANT vaParam;
VARIANT vaResult;
vaParam.vt = VT_BSTR;
vaParam.bstrVal = ::SysAllocString(strPosition);
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlSheet, L"Range", 1, vaParam);
if(hResult == FALSE)
{
return FALSE;
}
SysFreeString(vaParam.bstrVal);
VariantClear(&vaParam);
pXlRange = vaResult.pdispVal;
}
VARIANT vaTmp;
vaTmp.vt=VT_BSTR;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaTmp, pXlRange, L"Value", 0, 0);
if(hResult == FALSE)
{
pXlRange->Release();
return FALSE;
}
if(vaTmp.vt==VT_EMPTY)
{
pwsOut[0]= L'\0';
}
else
{
VariantChangeType(&vaTmp, &vaTmp, VARIANT_NOUSEROVERRIDE, VT_BSTR);
strData = vaTmp.bstrVal;
wcsncpy(pwsOut, strData, strData.length());
}
pXlRange->Release();
m_stLastPosition.dwX = dwX;
m_stLastPosition.dwY = dwY;
return TRUE;
}
// 원하는 Sheet와 칼럼에서 데이터를 읽어온다.
BOOL CExcelLib::GetData(INT nSheetNum, DWORD dwX, DWORD dwY, TCHAR *pwsOut, DWORD dwBufferSize)
{
VARIANT vaResult;
VARIANT vaSheet;
HRESULT hResult;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
VariantInit(&vaResult);
vaSheet.vt = VT_I4;
vaSheet.lVal = nSheetNum;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlApp, L"Worksheets", 1, vaSheet);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = vaResult.pdispVal;
bResult = GetData(dwX, dwY, pwsOut, dwBufferSize);
VariantInit(&vaResult);
vaSheet.vt = VT_I4;
vaSheet.lVal = m_nActiveSheet;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlApp, L"Worksheets", 1, vaSheet);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = vaResult.pdispVal;
if(bResult == FALSE)
{
return FALSE;
}
return TRUE;
}
// 옆칸의 데이터를 읽는다. 데이터가 비어있다면 FALSE 리턴
BOOL CExcelLib::GetNextData(INT fDirection, TCHAR *pwsOut, DWORD dwBufferSize)
{
if(!CheckInit())
{
return FALSE;
}
switch(fDirection)
{
case UPPER:
if(m_stLastPosition.dwY == 0)
{
return FALSE;
}
m_stLastPosition.dwY --;
break;
case BOTTOM:
m_stLastPosition.dwY ++;
break;
case LEFT:
if(m_stLastPosition.dwX == 0)
{
return FALSE;
}
m_stLastPosition.dwX --;
break;
case RIGHT:
m_stLastPosition.dwX ++;
break;
default:
return FALSE;
}
return GetData(m_stLastPosition.dwX, m_stLastPosition.dwY, pwsOut, dwBufferSize);
}
// Data를 쓴다.
BOOL CExcelLib::SetData(DWORD dwX, DWORD dwY, TCHAR *pwsInput)
{
_bstr_t strPosition;
_bstr_t strData;
TCHAR wsColumn[36];
HRESULT hResult;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
if(pwsInput == NULL)
{
return FALSE;
}
// Range 설정
memset(wsColumn, 0, sizeof(wsColumn));
bResult = XYToColumn(dwX, dwY, wsColumn);
if(bResult == FALSE)
{
return FALSE;
}
// XN ~ XN
strPosition = wsColumn;
strPosition += ":";
strPosition += wsColumn;
IDispatch *pXlRange;
{
VARIANT vaParam;
VARIANT vaResult;
vaParam.vt = VT_BSTR;
vaParam.bstrVal = ::SysAllocString(strPosition);
VariantInit(&vaResult);
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlSheet, L"Range", 1, vaParam);
if(hResult == FALSE)
{
return FALSE;
}
SysFreeString(vaParam.bstrVal);
VariantClear(&vaParam);
pXlRange = vaResult.pdispVal;
}
// 값 쓰기
VARIANT vaInputData;
_bstr_t strInputData;
strInputData = pwsInput;
vaInputData.vt = VT_BSTR;
vaInputData.bstrVal = ::SysAllocString(strInputData);
hResult = AutoWrap(DISPATCH_PROPERTYPUT, NULL, pXlRange, L"Value", 1, vaInputData);
if(hResult == FALSE)
{
pXlRange->Release();
return FALSE;
}
SysFreeString(vaInputData.bstrVal);
pXlRange->Release();
return TRUE;
}
BOOL CExcelLib::SetData(INT nSheetNum, DWORD dwX, DWORD dwY, TCHAR *pwsOut)
{
VARIANT vaResult;
VARIANT vaSheet;
HRESULT hResult;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
VariantInit(&vaResult);
vaSheet.vt = VT_I4;
vaSheet.lVal = nSheetNum;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlApp, L"Worksheets", 1, vaSheet);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = vaResult.pdispVal;
bResult = SetData(dwX, dwY, pwsOut);
VariantInit(&vaResult);
vaSheet.vt = VT_I4;
vaSheet.lVal = m_nActiveSheet;
hResult = AutoWrap(DISPATCH_PROPERTYGET, &vaResult, m_stProperties.pXlApp, L"Worksheets", 1, vaSheet);
if(hResult == FALSE)
{
return FALSE;
}
m_stProperties.pXlSheet = vaResult.pdispVal;
if(bResult == FALSE)
{
return FALSE;
}
return TRUE;
}
// 다음칸에 데이터를 쓴다.
BOOL CExcelLib::SetNextData(INT fDirection, TCHAR *pwsInput)
{
if(!CheckInit())
{
return FALSE;
}
switch(fDirection)
{
case UPPER:
if(m_stLastPosition.dwY == 0)
{
return FALSE;
}
m_stLastPosition.dwY --;
break;
case BOTTOM:
m_stLastPosition.dwY ++;
break;
case LEFT:
if(m_stLastPosition.dwX == 0)
{
return FALSE;
}
m_stLastPosition.dwX --;
break;
case RIGHT:
m_stLastPosition.dwX ++;
break;
default:
return FALSE;
}
return SetData(m_stLastPosition.dwX, m_stLastPosition.dwY, pwsInput);
}
// Active page 전체를 검색
BOOL CExcelLib::SearchAll(TCHAR *pwsSeed, TCHAR *pwsResult, DWORD &pdwX, DWORD &pdwY)
{
TCHAR wsBuffer[MAX_STRING_BUFFER_SIZE];
DWORD dwBX, dwBY, dwLX, dwLY;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
// 값 멤버 변수로 복사
memset(m_wsSeed, 0, sizeof(m_wsSeed));
wcscpy(m_wsSeed, pwsSeed);
m_stLastSearch.dwX = 0;
m_stLastSearch.dwY = 0;
// Active Range 받기
bResult = GetActiveRange(dwBX, dwBY, dwLX, dwLY);
if(bResult == FALSE)
{
return FALSE;
}
for(DWORD j=dwBY; j<=dwLY; j++)
{
for(DWORD i=dwBX; i<=dwLX; i++)
{
memset(wsBuffer, 0, sizeof(wsBuffer));
bResult = GetData(i, j, wsBuffer, MAX_STRING_BUFFER_SIZE);
if(bResult == FALSE)
{
return FALSE;
}
if(!lstrcmpi(wsBuffer, m_wsSeed) != NULL)
{
pdwX = i;
pdwY = j;
if(pwsResult != NULL)
{
wcscpy(pwsResult, wsBuffer);
}
m_stLastSearch.dwX = i;
m_stLastSearch.dwY = j;
m_fSearchMethod = SEARCH_ALL;
return TRUE;
}
}
}
return FALSE;
}
// 지정된 dwX나 dwY 좌표를 검색
BOOL CExcelLib::SearchX(DWORD dwX, TCHAR *pwsSeed, TCHAR *pwsResult, DWORD &pdwX, DWORD &pdwY)
{
TCHAR wsBuffer[MAX_STRING_BUFFER_SIZE];
DWORD dwBX, dwBY, dwLX, dwLY;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
// 값 멤버 변수로 복사
memset(m_wsSeed, 0, sizeof(m_wsSeed));
wcscpy(m_wsSeed, pwsSeed);
m_stLastSearch.dwX = 0;
m_stLastSearch.dwY = 0;
// Active Range 받기
bResult = GetActiveRange(dwBX, dwBY, dwLX, dwLY);
if(bResult == FALSE)
{
return FALSE;
}
for(DWORD j=dwBY; j<=dwLY; j++)
{
memset(wsBuffer, 0, MAX_STRING_BUFFER_SIZE);
bResult = GetData(dwX, j, wsBuffer, MAX_STRING_BUFFER_SIZE);
if(bResult == FALSE)
{
return FALSE;
}
if(!lstrcmpi(wsBuffer, m_wsSeed))
{
pdwX = dwX;
pdwY = j;
wcscpy(pwsResult, wsBuffer);
m_stLastSearch.dwX = dwX;
m_stLastSearch.dwY = j;
m_fSearchMethod = SEARCH_X;
return TRUE;
}
}
return FALSE;
}
BOOL CExcelLib::SearchY(DWORD dwY, TCHAR *pwsSeed, TCHAR *pwsResult, DWORD &pdwX, DWORD &pdwY)
{
TCHAR wsBuffer[MAX_STRING_BUFFER_SIZE];
DWORD dwBX, dwBY, dwLX, dwLY;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
// 값 멤버 변수로 복사
memset(m_wsSeed, 0, sizeof(m_wsSeed));
wcscpy(m_wsSeed, pwsSeed);
m_stLastSearch.dwX = 0;
m_stLastSearch.dwY = 0;
// Active Range 받기
bResult = GetActiveRange(dwBX, dwBY, dwLX, dwLY);
if(bResult == FALSE)
{
return FALSE;
}
for(DWORD j=dwBX; j<=dwLX; j++)
{
bResult = GetData(j, dwY, wsBuffer, MAX_STRING_BUFFER_SIZE);
if(bResult == FALSE)
{
return FALSE;
}
if(!lstrcmpi(wsBuffer, m_wsSeed) != NULL)
{
pdwX = j;
pdwY = dwY;
wcscpy(pwsResult, wsBuffer);
m_stLastSearch.dwX = j;
m_stLastSearch.dwY = dwY;
m_fSearchMethod = SEARCH_Y;
return TRUE;
}
}
return FALSE;
}
// 다음 찾기
BOOL CExcelLib::SearchNext(TCHAR *pwsResult, DWORD &pdwX, DWORD &pdwY)
{
TCHAR wsBuffer[MAX_STRING_BUFFER_SIZE];
DWORD dwBX, dwBY, dwLX, dwLY;
BOOL bResult;
if(!CheckInit())
{
return FALSE;
}
// Active Range 받기
bResult = GetActiveRange(dwBX, dwBY, dwLX, dwLY);
if(bResult == FALSE)
{
return FALSE;
}
if(m_fSearchMethod == SEARCH_X)
{
dwLX = m_stLastSearch.dwX;
m_stLastSearch.dwY++;
}
else if(m_fSearchMethod == SEARCH_Y)
{
dwLY = m_stLastSearch.dwY;
m_stLastSearch.dwX++;
}
else
{
m_stLastSearch.dwY++;
}
for(DWORD i=m_stLastSearch.dwX; i<=dwLX; i++)
{
for(DWORD j=m_stLastSearch.dwY; j<=dwLY; j++)
{
bResult = GetData(i, j, wsBuffer, MAX_STRING_BUFFER_SIZE);
if(bResult == FALSE)
{
return FALSE;
}
if(wcswcs(wsBuffer, m_wsSeed) != NULL)
{
pdwX = i;
pdwY = j;
wcscpy(pwsResult, wsBuffer);
m_stLastSearch.dwX = i;
m_stLastSearch.dwY = j;
return TRUE;
}
}
if(m_fSearchMethod == SEARCH_Y)
{
dwLY = m_stLastSearch.dwY;
}
else
{
m_stLastSearch.dwY = 1;
}
}
return FALSE;
}
/****************************************************************************************************/
/* INTERNAL FUNCTIONS */
/****************************************************************************************************/
BOOL CExcelLib::XYToColumn(DWORD dwX, DWORD dwY, TCHAR *pwsPosition)
{
TCHAR wsPosition[POSITION_BUFFER_SIZE];
DWORD dwMod;
DWORD dwNumber;
int nCurrent;
if(dwX < 0 || dwY < 0)
{
return FALSE;
}
memset(wsPosition, 0, sizeof(wsPosition));
dwNumber = dwX;
nCurrent = 0;
while(dwNumber > 0)
{
dwMod = dwNumber % 26;
if(dwMod == 0)
{
dwMod = 26;
}
wsPosition[nCurrent] = (TCHAR)('A' + dwMod - 1);
dwNumber /= 26;
nCurrent++;
}
_wcsrev(wsPosition);