一个关于tips的问题！

[shiao]

请问各位，我想在鼠标移到某一个位置时，出现一个黄底白字的小框，显示一些信息，就像Windows那样，因该如何实现？谢谢了！

[ruihuahan]

用MFC类CToolTipCtrl实现。具体见MSDN

[taianmonkey]

HWND m_hwndTT;
HINSTANCE hInstX;
.....
hInstX = AfxGetInstanceHandle();
m_hwndTT = CreateWindowEx(WS_EX_TOPMOST,
TOOLTIPS_CLASS,
NULL,
WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
m_hWnd,
NULL,
hInstX,
NULL
);

::SetWindowPos(m_hwndTT,HWND_TOPMOST,0,0,0,0,SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
LoadAllTips();
*********************************
void CDlg::LoadAllTips()
{
LoadTooltips(&m_btnStart,"开始");
LoadTooltips(&m_btnReset,"重新开始");
}
***********************************
void CDlg::LoadTooltips(CWnd *pWnd, TCHAR *m_strText)
{
TOOLINFO ti;
TCHAR szTip[30];
ti.cbSize = sizeof(TOOLINFO);
ti.uFlags = TTF_SUBCLASS;

ti.hinst = hInstX;
ti.uId = 0;
ti.lpszText = szTip;

ti.hwnd = pWnd->m_hWnd;
::GetClientRect(ti.hwnd,&ti.rect);
strcpy(szTip,m_strText);
::SendMessage(m_hwndTT, TTM_ADDTOOL, 0, (LPARAM) (LPTOOLINFO) &ti);
}

[littlebaby1009]

CToolTipCtrl

[jaweehuang]

BOOL CMediaPlayerDlg::OnInitDialog()
{
CDialog::OnInitDialog();
isRepeat=false;
istop=false;
play=true;
VERIFY(m_open.AutoLoad(IDC_OPEN,this));
VERIFY(m_play.AutoLoad(IDC_PLAY,this));
VERIFY(m_pause.AutoLoad(IDC_PAUSE,this));
VERIFY(m_stop.AutoLoad(IDC_STOP,this));
VERIFY(m_close.AutoLoad(IDC_CLOSE,this));
VERIFY(m_full.AutoLoad(IDC_FULLSCREEN,this));
VERIFY(m_repeat.AutoLoad(IDC_PEPEAT,this));
VERIFY(m_exit.AutoLoad(IDCANCEL,this));
VERIFY(m_mini.AutoLoad(IDC_MINIMIZE,this));
VERIFY(m_help.AutoLoad(IDD_ABOUTBOX,this));
// Add "About..." menu item to system menu.
SetTimer(0,200,NULL);
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
m_menu.LoadMenu(IDR_MENU1);
SetMenu(&m_menu);


hCursor=AfxGetApp()->LoadCursor(IDC_WAIT);
//AfxGetApp()->SetCursor(&hCursor);


CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}

// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here
m_tip.Create(this);
m_tip.Activate(TRUE);
m_tip.AddTool (GetDlgItem(IDC_OPEN), "打开媒体文件");
m_tip.AddTool (GetDlgItem(IDC_PLAY), "播放媒体文件");
m_tip.AddTool (GetDlgItem(IDC_PAUSE), "暂停播放");
m_tip.AddTool (GetDlgItem(IDC_STOP), "停止播放");
m_tip.AddTool (GetDlgItem(IDC_FULLSCREEN), "全屏显示");
m_tip.AddTool (GetDlgItem(IDC_PEPEAT), "循环播放");
m_tip.AddTool (GetDlgItem(IDC_CLOSE), "恢复视窗");
m_tip.AddTool (GetDlgItem(IDD_ABOUTBOX), "帮助");
m_tip.AddTool (GetDlgItem(IDC_MINIMIZE), "最小化");
m_tip.AddTool (GetDlgItem(IDCANCEL), "关闭程序");
// m_tip.AddTool(GetDlgItem(IDC_STATIC1),"123");
CBitmapButton *ptr=(CBitmapButton*)GetDlgItem(IDC_BUTTON1);
ptr->SetWindowText("曲目：");
return TRUE; // return TRUE unless you set the focus to a control
}