mylistbox.cpp

监控摄像头（高速球）的调节程序

// MyListBox.cpp : implementation file
//

#include "stdafx.h"
#include "pelco.h"
#include "MyListBox.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMyListBox

CMyListBox::CMyListBox()
{
	m_nMaxWidth = 0;

	
}

CMyListBox::~CMyListBox()
{
}


BEGIN_MESSAGE_MAP(CMyListBox, CListBox)
	//{{AFX_MSG_MAP(CMyListBox)
	ON_WM_NCHITTEST()
	ON_WM_CREATE()
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyListBox message handlers
int CMyListBox::AddString(LPCTSTR lpszItem)
{
	int nRet = CListBox::AddString(lpszItem); 
	SCROLLINFO scrollInfo;
	memset(&scrollInfo, 0, sizeof(SCROLLINFO)); 
	scrollInfo.cbSize = sizeof(SCROLLINFO); 
	scrollInfo.fMask = SIF_ALL; 
	GetScrollInfo(SB_VERT, &scrollInfo, SIF_ALL); 
	int nScrollWidth = 0;
	if(GetCount() > 1 && ((int)scrollInfo.nMax >= (int)scrollInfo.nPage)) 
	{ 
		nScrollWidth = GetSystemMetrics(SM_CXVSCROLL); 
	} 
	SIZE sSize;
	CClientDC myDC(this); 
	CFont* pListBoxFont = GetFont(); 
	if(pListBoxFont != NULL) 
	{ 
		CFont* pOldFont = myDC.SelectObject(pListBoxFont); 
			
		GetTextExtentPoint32(myDC.m_hDC, 
		lpszItem, strlen(lpszItem), &sSize); 
		m_nMaxWidth = max(m_nMaxWidth, (int)sSize.cx); 
		SetHorizontalExtent(m_nMaxWidth + 3); 
		myDC.SelectObject(pOldFont); 
	} 
	
	return nRet; 
	
	
	
}

UINT CMyListBox::OnNcHitTest(CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
  
	

         CString strTip;
         m_wndToolTip.GetText(strTip, this);
         
         if (strTip != m_tipText)
         {
             m_wndToolTip.UpdateTipText(m_tipText, this);
         }

	
	return CListBox::OnNcHitTest(point);
}

int CMyListBox::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CListBox::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// TODO: Add your specialized creation code here
	if (!m_wndToolTip.Create(this, TTS_ALWAYSTIP) ||
		!m_wndToolTip.AddTool(this, "Tool tip for List")
		)
		AfxMessageBox("Unable to add tool tip for List");	
	
	return 0;
}

void CMyListBox::OnDestroy() 
{
	CListBox::OnDestroy();
	
	// TODO: Add your message handler code here
	m_wndToolTip.DestroyWindow();
}

void CMyListBox::SetTipText(CString tipText)
{
	m_tipText =tipText;
}

BOOL CMyListBox::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	m_wndToolTip.RelayEvent(pMsg);
	return CListBox::PreTranslateMessage(pMsg);
}