excel.h的简单使用
//*****
//变量定义
_Application app;
Workbooks books;
_Workbook book;
Worksheets sheets;
_Worksheet sheet;
Range range;
Range iCell;
LPDISPATCH lpDisp;
COleVariant vResult;
COleVariant
covTrue((short)TRUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
//*****
//初始化COM的动态连接库
if(!AfxOleInit())
{
AfxMessageBox("无法初始化COM的动态连接库!");
return ;
}
//*****
//创建Excel 2000服务器(启动Excel)
if(!app.CreateDispatch("Excel.Application"))
{
AfxMessageBox("无法启动Excel服务器!");
return;
}
app.SetVisible(TRUE); //使Excel可见
app.SetUserControl(TRUE); //允许其它用户控制Excel
//*****
//打开c:/1.xls
books.AttachDispatch(app.GetWorkbooks());
lpDisp = books.Open("C://1.xls",
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional, covOptional, covOptional, covOptional,
covOptional, covOptional );
//*****
//得到Workbook
book.AttachDispatch(lpDisp);
//*****
//得到Worksheets
sheets.AttachDispatch(book.GetWorksheets());
//*****
//得到当前活跃sheet
//如果有单元格正处于编辑状态中，此操作不能返回，会一直等待
lpDisp=book.GetActiveSheet();
sheet.AttachDispatch(lpDisp);
//*****
//读取已经使用区域的信息，包括已经使用的行数、列数、起始行、起始列
Range usedRange;
usedRange.AttachDispatch(sheet.GetUsedRange());
range.AttachDispatch(usedRange.GetRows());
long iRowNum=range.GetCount(); //已经使用的行数
range.AttachDispatch(usedRange.GetColumns());
long iColNum=range.GetCount(); //已经使用的列数
long iStartRow=usedRange.GetRow(); //已使用区域的起始行，从1开始
long iStartCol=usedRange.GetColumn(); //已使用区域的起始列，从1开始
//*****
//读取第一个单元格的值
range.AttachDispatch(sheet.GetCells());
range.AttachDispatch(range.GetItem (COleVariant((long)1),COleVariant((long)1)).pdispVal );
COleVariant vResult =range.GetValue();
CString str;
if(vResult.vt == VT_BSTR) //字符串
{
str=vResult.bstrVal;
}
else if (vResult.vt==VT_R8) //8字节的数字
{
str.Format("%f",vResult.dblVal);
}
else if(vResult.vt==VT_DATE) //时间格式
{
SYSTEMTIME st;
VariantTimeToSystemTime(&vResult.date, &st);
}
else if(vResult.vt==VT_EMPTY) //单元格空的
{
str="";
}
//*****
//读取第一个单元格的对齐方式，数据类型:VT_I4
//读取水平对齐方式
range.AttachDispatch(sheet.GetCells());
iCell.AttachDispatch((range.GetItem (COleVariant(long(1)), COleVariant(long(1)))).pdispVal);
vResult.lVal=0;
vResult=iCell.GetHorizontalAlignment();
if(vResult.lVal!=0)
{
switch (vResult.lVal)
{
case 1: //默认
break;
case -4108: //居中
break;
case -4131 : //*左
break;
case -4152 : //*右
break;
}
}
//垂直对齐方式
iCell.AttachDispatch((range.GetItem (COleVariant(long(1)), COleVariant(long(1)))).pdispVal);
vResult.lVal=0;
vResult=iCell.GetVerticalAlignment();
if(vResult.lVal!=0)
{
switch (vResult.lVal)
{
case -4160 : //*上
break;
case -4108 : //居中
break;
case -4107 : //*下
break;
}
}
//*****
//设置第一个单元格的值"HI,EXCEL!"
range.SetItem(COleVariant(1),COleVariant(1),COleVariant("HI,EXCEL!"));
//*****
//设置第一个单元格字体颜色:红色
Font font;
range.AttachDispatch(sheet.GetCells());
range.AttachDispatch((range.GetItem (COleVariant(long(1)), COleVariant(long(1)))).pdispVal);
font.SetColor(COleVariant((long)0xFF0000));
//*****
//合并单元格的处理
//包括判断第一个单元格是否为合并单元格，以及将第一个单元格进行合并
Range unionRange;
range.AttachDispatch(sheet.GetCells());
unionRange.AttachDispatch(range.GetItem (COleVariant((long)1),COleVariant((long)1)).pdispVal );
vResult=unionRange.GetMergeCells();
if(vResult.boolVal==-1) //是合并的单元格
{
//合并单元格的行数
range.AttachDispatch (unionRange.GetRows ());
long iUnionRowNum=range.GetCount ();
//合并单元格的列数
range.AttachDispatch (unionRange.GetColumns ());
long iUnionColumnNum=range.GetCount ();
//合并区域的起始行，列
long iUnionStartRow=unionRange.GetRow(); //起始行，从1开始
long iUnionStartCol=unionRange.GetColumn(); //起始列，从1开始
}
else if(vResult.boolVal==0)
{//不是合并的单元格}
//将第一个单元格合并成2行，3列
range.AttachDispatch(sheet.GetCells());
unionRange.AttachDispatch(range.GetItem (COleVariant((long)1),COleVariant((long)1)).pdispVal );
unionRange.AttachDispatch(unionRange.GetResize(COleVariant((long)2),COleVariant((long)3)));
unionRange.Merge(COleVariant((long)0)); //合并单元格
//*****
//将文件保存为2.xls
book.SaveAs(COleVariant("C://2.xls"),covOptional,covOptional, /
covOptional,covOptional,covOptional,0,/
covOptional,covOptional,covOptional,covOptional);
//*****
//关闭所有的book，退出Excel
book.Close (covOptional,COleVariant(OutFilename),covOptional);
books.Close();
app.Quit();