定义Com接口的参数类型//下面???都属于什么类型?
CHAR //字符变量类型
CY //???
DATE //日期变量类型
DOUBEL//double变量类型
FLOAT //float变量类型
IDispatch* //???
IPictureDisp* //???
IUnknown* //???
LONG //long变量类型
LONGLONG //longlong变量类型
OLE_COLOR //OLE的颜色类型???
OLE_XPOS_HIMETIC //OLE的x坐标???
OLE_YPOS_HIMETIC //OLE的y坐标???
OLE_XSIZE_PIXELS //???
OLE_YSIZE_PIXELS //???
OLE_HANDLE //OLE句柄???
SCODE //???
ULONG //无符号long变量类型
ULONGLONG //无符号longlong变量类型
USHORT //???
VARIANT //var类型???
VARIANTR_BOOL //var的BOOL类型???
