unresolved external symbol "public: virtual struct CRuntimeClass * __thiscall CLine::GetRuntimeClass(void)const " (?GetRuntimeCl

[zhaomiaoqianran]

DrawDoc.h:

public:
CLine* AddLine(short ColorPen,short ColorBrush,short LineWide,short LineType,short Layer,int id_only,float X1,float Y1,float X2,float Y2);


DrawDoc.cpp:
CLine* CDrawDoc::AddLine(short ColorPen, short ColorBrush, short LineWide, short LineType, short Layer, int id_only, float X1, float Y1, float X2, float Y2)
{
CLine* p_Line=new CLine(ColorPen,ColorBrush,LineWide,LineType,Layer,id_only,0,X1,Y1,X2,Y2);
m_LineArray.Add(p_Line);
return p_Line;
}

运行错误

[Treazy]

错误不是都已经提示了嘛

virtual struct CRuntimeClass * CLine::GetRuntimeClass(void)const

[erwin1984]

你定义了 DECLARE_DYNCREATE(CLine) 去没有cpp中定义实现 IMPLEMENT_DYNCREATE(CLine, CBaseClass)

加上 IMPLEMENT_DYNCREATE(CLine, CBaseClass) CBaseClass 是CLine的基类。