Show scrolling text in a status bar pane

1. Derive your own CMyStatusBar from CstatusBar.

2. In MainFrm.h, change the type of status bar as:

	CMyStatusBar m_wndStatusBar;

3. Also change the indicator array in MainFrm.cpp as:

	static UINT indicators[] =
	{
		ID_SEPARATOR, 
		IDS_SCROLL_PANE,				//scrolling text
		ID_INDICATOR_CAPS,
		ID_INDICATOR_NUM,
		ID_INDICATOR_SCRL,
	};

4. Add IDS_SCROLL_PANE in the string table with few blanks. The size of pane will depend on this blank string. There are other painfull ways of sizing a pane too.

5. Add following member to CMyStatusBar: Cstring m_strScrollText;

6. Add OnTimer() to the CMyStatusBar:

void CMyStatusBar::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	
	if (m_strScrollText.IsEmpty())
	{
		KillTimer(1);
		SetPaneText(CommandToIndex(IDS_SCROLL_PANE), "");
		return;
	}
	static UINT str_idx = 0;        //offset into string
	
	//if end of string, return to top
	if (str_idx >= (UINT) (m_strScrollText.GetLength() / 2) - 1)
	{
		str_idx = 0;
	}
	
	//display string
	SetPaneText(CommandToIndex(IDS_SCROLL_PANE), ((LPCSTR) 
		m_strScrollText)+str_idx); 
	
	//scroll one character
	str_idx = str_idx + 1;
	
	CStatusBar::OnTimer(nIDEvent);
}

7. Destroy timer:

void CMyStatusBar::OnDestroy() 
{
	CStatusBar::OnDestroy();
	
	// TODO: Add your message handler code here
	
	KillTimer(1);
}

8. Add a method to start scrolling text. This method must be called after the mainframe (and the status bar) has been constructed to display scrolling text. Perhaps from the CWinApp::InitInstance().

void CMyStatusBar::StartDisplay(void) 
{
	//set text for scrolling
	m_strScrollText = "   Hello! World.   "
		
		//to make it circular scroll
		m_strScrollText += m_strScrollText;
	
	KillTimer(1);
	VERIFY(SetTimer(1, 200, NULL) != 0);    //timer
}