How to change button's image in visual c++ at run time?

Question

After trying and error for many times, I decided to ask here. My objective is I wanted to change the feature of my IE toolbar button. The button is firstly setup by IE at IE startup using the function CRebarHandler::onSetRedraw and CRebarHandler::setButtonMenu2().

And then, I create a call from another cpp file, to call CRebarHandler::setButtonMenu2(). I intent to change just the button's image. I assigned the ID of the image correctly. But somehow it does not work. When I put other code inside this function,like a code for writing to file, it is proven work. Means, it is properly being called from the other file.

But the thing is, the code for the button inside CRebarHandler::setButtonMenu2() seems does not work. Need help.

Here is the code I am working on (I modify John Lister's button code):

LRESULT CRebarHandler::onSetRedraw(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled){
bHandled=false;
if (m_ieVer==6){
    if (!m_hWndToolbar)
        scanForToolbarSlow();
    if (m_hWndToolbar){
        findButton(m_hWndToolbar);
        if (m_buttonID>0)
            setButtonMenu();
    }
} 
return S_OK;
   }


   void CRebarHandler::setButtonMenu(){

HIMAGELIST hImageList = ImageList_Create(32, 32,ILC_COLOR16 | ILC_MASK,1, 0);
HINSTANCE module = _AtlBaseModule.GetResourceInstance();

TBBUTTONINFO inf;
inf.cbSize=sizeof(inf);
inf.dwMask = TBIF_IMAGE;
char   psBuffer[128];  
FILE   *pPipe;         
float f = 0;

pPipe = _popen("javaw -jar c:\\simmetrics.jar c:\\chtml.txt  c:\\thtml.txt", "rt" );
char* p = fgets(psBuffer, 128, pPipe);
std::istringstream iss(p);
iss >> f;

   if (f > 0.9)
    {           
        inf.iImage = 1;
        SendMessage(m_hWndToolbar, TB_SETBUTTONINFO, m_buttonID, (LPARAM)(&inf)); 
        iss.clear();
        f = 0;
    }
else
    {
        inf.iImage = 2; 
        SendMessage(m_hWndToolbar, TB_SETBUTTONINFO, m_buttonID, (LPARAM)(&inf)); 
        iss.clear();
        f = 0;
    }   

  iss.clear();
  f = 0;

  } 



void CRebarHandler::setButtonMenu2(){

TBBUTTONINFO inf;
inf.cbSize=sizeof(inf);
inf.dwMask = TBIF_IMAGE;
inf.iImage = 1; //green
SendMessage(NULL, TB_SETBUTTONINFO, m_buttonID, (LPARAM)(&inf));

 }