WTL学习笔记(2)ToolBar && StatusBar

 

1.创建ToolBar和StatusBar

LRESULT CMainFrame::OnCreate(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
    CreateSimpleToolBar();
    CreateSimpleStatusBar();

    return 0;
}

2.更新ToolBar && StautsBar

(1)定义控件更新时机

BEGIN_UPDATE_UI_MAP(CMainFrame)
    UPDATE_ELEMENT(ID_VIEW_TOOLBAR, UPDUI_MENUPOPUP | UPDUI_TOOLBAR)
    UPDATE_ELEMENT(ID_VIEW_STATUS_BAR, UPDUI_MENUPOPUP | UPDUI_TOOLBAR)
    UPDATE_ELEMENT(IDC_START_STOP, UPDUI_MENUBAR)
END_UPDATE_UI_MAP()

(2)将控件句柄传给CUpdateUI,CUpdateUI提供了一些更改句柄状态的函数

UIAddToolBar(m_hWndToolBar);
UIAddMenuBar(m_hWnd);

(3)更改控件数据结构状态

UISetCheck(ID_VIEW_TOOLBAR, 1);
UISetCheck(ID_VIEW_STATUS_BAR, 1);

(4)发送消息更新控件UI

BOOL CMainFrame::OnIdle()
{
    UIUpdateToolBar();
    UIUpdateMenuBar(FALSE, TRUE);
    return FALSE;
}

(5)更新UI布局

比如隐藏和显示ToolBar时,就需要更新布局

LRESULT CMainFrame::OnViewToolBar(WORD /*wNotifyCode*/, WORD /*wID*/, HWND /*hWndCtl*/, BOOL& /*bHandled*/)
{
    BOOL bVisible = !::IsWindowVisible(m_hWndToolBar);
    ::ShowWindow(m_hWndToolBar, bVisible ? SW_SHOWNOACTIVATE : SW_HIDE);
    UISetCheck(ID_VIEW_TOOLBAR, bVisible);
    UpdateLayout();
    return 0;
}

(6)更新Menu文本

void CMainFrame::OnStartStopClock ( UINT uCode, int nID, HWND hwncCtrl )
{
    if ( m_view.IsClockRunning() )
        {
        m_view.StopClock();
        UISetText ( IDC_START_STOP, _T("&Start") );
        }
    else
        {
        m_view.StartClock();
        UISetText ( IDC_START_STOP, _T("&Stop") );
        }
}