“static_cast”: 无法从“void (__thiscall CMyNetChatDlg::* )(WPARAM,LPARAM)”转换为“LRESULT (__thiscall CWnd::* )(WPARAM,LPARAM)”

解决方法：

把原来的消息函数原型改为:

afx_msg LRESULT OnMyMessage(WPARAM wParam, LPARAM lParam);

LRESULT CMyWnd::OnMyMessage(WPARAM wParam, LPARAM lParam)
{
return 0;
}