c++ - How do I get my subclassed combo box messages to forward their messages to the parent toolbar? -

i have 5 combo boxes on toolbar , want process messages , notification , particularly cbn_selchange notification int subclassed toolbar class. have tried several approaches no avail. deinition of tool bar , combo box classes shown below:

#pragma once // cmycombobox  class cmycombobox : public ccombobox {     declare_dynamic(cmycombobox)  public:     cmycombobox();     virtual ~cmycombobox();  protected:     declare_message_map() public:     afx_msg bool oncbnselchange();     //afx_msg void oncbnselchange(); };      // mycombobox.cpp : implementation file //  #include "stdafx.h" #include "mycombobox.h"   implement_dynamic(cmycombobox, ccomboboxex)  cmycombobox::cmycombobox() {  }  cmycombobox::~cmycombobox() { }   begin_message_map(cmycombobox, ccomboboxex)     //on_control_reflect(cbn_selchange, &cmycombobox::oncbnselchange)     on_control_reflect_ex(cbn_selchange, &cmycombobox::oncbnselchange) end_message_map()    // cmycombobox message handlers   bool cmycombobox::oncbnselchange() {     return false; }   #pragma once #include "mystatic.h" #include "mycombobox.h"  // mytoolbar  class cmytoolbar : public cmfctoolbar {     declare_dynamic(cmytoolbar)  public:     cmytoolbar();     virtual ~cmytoolbar();  public:     void embedcontrols();     //cmystatic m_pstatic3;     cmycombobox m_combo1,m_combo2,m_combo3,m_combo4,m_combo5;     cwnd m_pedit1;     cfont m_font; private: public:     afx_msg void oncbnselchange1();     afx_msg void oncbnselchange2();     afx_msg void oncbnselchange3();     afx_msg void oncbnselchange4();     afx_msg void oncbnselchange5(); protected:     declare_message_map() //public:     //afx_msg void onsize(uint ntype, int cx, int cy); };     implement_dynamic(cmytoolbar, cmfctoolbar)  cmytoolbar::cmytoolbar() { }  cmytoolbar::~cmytoolbar() { }   begin_message_map(cmytoolbar, cmfctoolbar)     on_cbn_selchange(id_combo1, &cmytoolbar::oncbnselchange1)     on_cbn_selchange(id_combo2, &cmytoolbar::oncbnselchange2)     on_cbn_selchange(id_combo3, &cmytoolbar::oncbnselchange3)     on_cbn_selchange(id_combo4, &cmytoolbar::oncbnselchange4)     on_cbn_selchange(id_combo5, &cmytoolbar::oncbnselchange5)     //on_wm_size() end_message_map()    // mytoolbar message handlers #include "stdafx.h" #include "mytoolbar.h" void cmytoolbar::oncbnselchange1() {   //operation1 }  void cmytoolbar::oncbnselchange2() {  //operation1 }  void cmytoolbar::oncbnselchange2() {  //operation2 }  void cmytoolbar::oncbnselchange3() {  //operation3 }  void cmytoolbar::oncbnselchange4() {  //operation4 }  void cmytoolbar::oncbnselchange5() {  //operation5 }  void cmytoolbar:embedcontrols() { //creates 5 comboboxes of type mycombobox , embeds on tool bar } 

the problem neither of operations 1 4 being carried out signifying selection change messages not reaching toolbar. stepping code @ runtime confirm this.

so, how combo boxes forward messages toolbar processiing?