c++ - CDaoRecordSet::查找错误

Question

CString str = "something";
CDaoDatabase db;
//db open
CDaoRecordset rs(&db);
rs.Open(AFX_DAO_USE_DEFAULT_TYPE,"select * from mydb");
COleVariant searched(str); 
BOOL bFound = rs.Seek("=",searched);

对于此语句，VS2008 返回错误 C2664:“BOOL CDaoRecordset::Seek(LPCTSTR,COleVariant *,COleVariant *,COleVariant *)”:无法将参数 2 从“COleVariant”转换为“COleVariant *”。

如何将 COleVariant 转换为指针？

Answer 1

使用地址运算符'&'

BOOL bFound = rs.Seek("=",&searched);