求助

503076982

ads_name m_ss;
const resbuf* fifter=NULL;
LPCTSTR str = NULL;
int nRs = acedSSGet(_T(":K"), NULL,str,fifter, m_ss);
acedSSSetKwordCallbackPtr(Func);
这段代码的问题，通过键盘输入来获得一个字符串，调试时说nRs = -5003