An ASSERT occurs while I'm trying to get the coordinates of the toolbar in WM_SIZE!

I hate to say this, but I tried to get the coordinates of the toolbar in the WM_SIZE, after the program has been maximized.
But the program gives me an ASSERT error!

But I thought the toolbar is already created when WM_SIZE is called?
Help please!

Can anyone show me how to get the bounding coordinates of a toolbar after the program has been maximized?
I even tried WM_ACTIVATE, WM_SHOWWINDOW and WM_WINDOWPOSCHANGED, but in vain.

Thanks a lot! :)

Are you processing WM_SIZE in the CMainFrame class ?
If so, the OnSize() gets called twice at startup. The first
time it is called, I do not think the toolbar exists.

Are you checking the nType argument to make
sure the window is being maximized ?

you might want to make sure the toolbar exists ...

• Add member variable to CMainFrame class :
  
  
  Code:

  ---

  bool m_createdToolbar;

  ---

• initialize in the constructor :
  
  
  Code:

  ---

  m_createdToolbar = false;

  ---

• at end of OnCreate() ...
  
  
  Code:

  ---

  m_createdToolbar = true;

  ---

• OnSize() ...
  
  
  Code:

  ---

  void CMainFrame::OnSize(UINT nType, int cx, int cy)
{
        CFrameWnd::OnSize(nType, cx, cy);
       
        // TODO: Add your message handler code here

        if (m_createdToolbar)
        {
                // do something
        }

}

  ---

[

Can u post some code ??

It's easier to check if the HWND of toolbar is not null in OnSize(), this way you don't need an extra variable. In fact WM_SIZE is often sent to a window before its children have been created.

Thanks a lot to the following folks who have contributed to my movie : :D

Phillip Nicoletti
Prem_Gali
MiMec