求救，关于void OnPaint()和HCURSOR OnQueryDragIcon()的问题，

[C__xiaobai]

我是小白，
在头文件中 virtual BOOL OnInitDialog();
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
在源文件中
BEGIN_MESSAGE_MAP(CSETUP, CDialogEx)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
结果在
错误 1 error LNK2001: 无法解析的外部符号 "protected: void __thiscall CSETUP::OnPaint(void)" (?OnPaint@CSETUP@@IAEXXZ) C:\Users\a0596\documents\visual studio 2010\Projects\8324t16\8324t16\SETUP.obj 8324t16
大神有么有啊？？？急急急。。。。救救救

[赵4老师]

BEGIN_MESSAGE_MAP BEGIN_MESSAGE_MAP( theClass, baseClass ) Parameters theClass Specifies the name of the class whose message map this is. baseClass Specifies the name of the base class of theClass. Remarks Use the BEGIN_MESSAGE_MAP macro to begin the definition of your message map. In the implementation (.CPP) file that defines the member functions for your class, start the message map with the BEGIN_MESSAGE_MAP macro, then add macro entries for each of your message-handler functions, and complete the message map with the END_MESSAGE_MAP macro. For more information on message maps and the BEGIN_MESSAGE_MAP macro, seeAdding a Dialog Box in Visual C++ Tutorials. Example // example for BEGIN_MESSAGE_MAP BEGIN_MESSAGE_MAP( CMyWindow, CFrameWnd ) //{{AFX_MSG_MAP( CMyWindow ) ON_WM_PAINT() ON_COMMAND( IDM_ABOUT, OnAbout ) //}}AFX_MSG_MAP END_MESSAGE_MAP( ) See Also DECLARE_MESSAGE_MAP, END_MESSAGE_MAP