请问下面关于MapX一段程序,下面声明的变量是什么意思啊,函数是干什么的?谢谢了啊!
VARIANT vFlds;
vFlds.vt = VT_DISPATCH;
vFlds.pdispVal = flds.m_lpDispatch;
//Create a new LayerInfo Object
CMapXLayerInfo Linfo;
Linfo.CreateDispatch(Linfo.GetClsid());
//Set the Layer Info type to type: New Table
Linfo.SetType(miLayerInfoTypeNewTable);
//Add the parameters for the new table
Linfo.AddParameter("FileSpec", COleVariant("c:\\MAP\\NewB.tab")); //Tab file
Linfo.AddParameter("Name", COleVariant("NewB")); //Layer name
Linfo.AddParameter("Fields", vFlds); //Fields
Linfo.AddParameter("OverwriteFile