I need to modify the MFC source code afxpriv.h ? - No, you just use some private MFC feature

   CXTPCommandBars* pCommandBars = GetCommandBars(); // This returns the correct pointer

   CXTPToolBar* pToolbar = pCommandBars->GetToolBar(IDR_TOOLBAR_START); // here I get NULL (I don't know why because the toolbar is created when I call this)

 CXTPToolBar* pToolbar = pCommandBars->GetAt(0); // This will return a correct pointer !

 

 

  why do I need to add OnKickIdle in the property page? because the toolbar is in the propertysheet in place of the standard wizard buttons.

   I need to modify the MFC source code afxpriv.h ?

 

Thanks !

Using ON_UPDATE_COMMAND_UI message maps in property pages is the same as in dialogs except for one extra step required.
You need to derive a class from CPropertySheet and intercept the WM_KICKIDLE messages.

1. Create a new class called CMyPropSheet with a base class of CPropertSheet.
2. In the header add the message function. afx_msg LRESULT OnIdleUpdateCmdUI(WPARAM, LPARAM);
3. In the source file #include afxpriv.h
4. Add the message map ON_MESSAGE(WM_KICKIDLE, OnKickIdle)
5. Implement the function.

LRESULT CMyPropSheet::OnKickIdle(WPARAM, LPARAM)
{
 SendMessageToDescendants(WM_WM_KICKIDLE, 0, 0, FALSE, FALSE);
 return 0;
}

The property sheet now passes all WM_KICKIDLE message to its property pages.
 
In the property page class, just add a message map for WM_KICKIDLE and call UpdateDialogControls.

LRESULT CMyPropPage::OnKickIdle(WPARAM, LPARAM)
{
 UpdateDialogControls(this, FALSE);
 return 0L;
}

Then all you need is ON_UPDATE_COMMAND_UI message maps.

P.S. This does not work for modeless property sheets. You need to trap the WM_IDLEUPDATECMDUI message in the property sheet's owner window and send it WK_KICKIDLE messages.

 

void CMainPropertySheet::OnUpdateMenuStart(CCmdUI* pCmdUI)
{
   pCmdUI->Enable(!m_bTaskRunning);
}

ProperySheets - Wizards have little bit another handling - look in any sample where you have "Finish" button which disable until some condition

 

I gave you some standard ideas for SDI - MDI architecture

if (GetCommandBars()->GetToolBar(IDR_TOOLBAR_START))

{

 

}

I guess it give NULL

(and yes, the m_bTaskRunning is set correctly to FALSE after the task is finished, but the toolbar button still remains disabled)

 

void CMainPropertySheet::OnUpdateMenuStart(CCmdUI* pCmdUI)
{
 if (m_bTaskRunning == TRUE) pCmdUI->Enable(FALSE);
 else pCmdUI->Enable(TRUE);
}

CXTPControl* pBarControl = GetCommandBars()->GetToolBar(IDR_TOOLBAR_START)->GetControl(0);//0=New, 1=Open and so on

 

It crashes in this XTP function with access violation

int CXTPCommandBar::GetControlCount() const
{
 return m_pControls->GetCount();
}

 

I will try to use ON_UPDATE_COMMAND_UI