在我的一个VC程序里添加了一个用户自定义消息，可是怎么弄VC都不认识，期待高手帮我解答！小弟不胜感激！在MainFrm.cpp中：BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)//{{AFX_MSG_MAP(CMainFrame)// NOTE - the ClassWizard will add and remove mapping macros here.// DO NOT EDIT what you see in these blocks of generated code !ON_WM_CREATE()ON_MYMESSAGE(WM_MY_MESSAGE, OnMyMessage)//总是提示这里error C2065: 'ON_MYMESSAGE' : undeclared identifier//}}AFX_MSG_MAPEND_MESSAGE_MAP()在MainFrm.h中：……#define WM_MY_MESSAGE WM_USER+101……//{{AFX_MSG(CMainFrame)afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);afx_msg LRESULT OnMyMessage(WPARAM wParam, LPARAM lParam);// NOTE - the ClassWizard will add and remove member functions here.// DO NOT EDIT what you see in these blocks of generated code!//}}AFX_MSGDECLARE_MESSAGE_MAP()