wxHitTest wxScrollBar::HitTestBar(const wxPoint& pt) const
{
    // we only need to work with either x or y coord depending on the
    // orientation, choose one (but still check the other one to verify if the
    // mouse is in the window at all)
    const wxSize sizeArrowSB = m_renderer->GetScrollbarArrowSize();

    wxCoord coord, sizeArrow, sizeTotal;
    wxSize size = GetSize();
    if ( GetWindowStyle() & wxVERTICAL )
    {
        if ( pt.x < 0 || pt.x > size.x )
            return wxHT_NOWHERE;

        coord = pt.y;
        sizeArrow = sizeArrowSB.y;
        sizeTotal = size.y;
    }
    else // horizontal
    {
        if ( pt.y < 0 || pt.y > size.y )
            return wxHT_NOWHERE;

        coord = pt.x;
        sizeArrow = sizeArrowSB.x;
        sizeTotal = size.x;
    }

    // test for the arrows first as it's faster
    if ( coord < 0 || coord > sizeTotal )
    {
        return wxHT_NOWHERE;
    }
    else if ( coord < sizeArrow )
    {
        return wxHT_SCROLLBAR_ARROW_LINE_1;
    }
    else if ( coord > sizeTotal - sizeArrow )
    {
        return wxHT_SCROLLBAR_ARROW_LINE_2;
    }
    else
    {
        // calculate the thumb position in pixels
        sizeTotal -= 2*sizeArrow;
        wxCoord thumbStart, thumbEnd;
        int range = GetRange();
        if ( !range )
        {
            // clicking the scrollbar without range has no effect
            return wxHT_NOWHERE;
        }
        else
        {
            GetScrollBarThumbSize(sizeTotal,
                                  GetThumbPosition(),
                                  GetThumbSize(),
                                  range,
                                  &thumbStart,
                                  &thumbEnd);
        }

        // now compare with the thumb position
        coord -= sizeArrow;
        if ( coord < thumbStart )
            return wxHT_SCROLLBAR_BAR_1;
        else if ( coord > thumbEnd )
            return wxHT_SCROLLBAR_BAR_2;
        else
            return wxHT_SCROLLBAR_THUMB;
    }
}

// Lay out controls
void wxBookCtrlBase::DoSize()
{
    if ( !m_bookctrl )
    {
        // we're not fully created yet or OnSize() should be hidden by derived class
        return;
    }

    if (GetSizer())
        Layout();
    else
    {
        // resize controller and the page area to fit inside our new size
        const wxSize sizeClient( GetClientSize() ),
                    sizeBorder( m_bookctrl->GetSize() - m_bookctrl->GetClientSize() ),
                    sizeCtrl( GetControllerSize() );

        m_bookctrl->SetClientSize( sizeCtrl.x - sizeBorder.x, sizeCtrl.y - sizeBorder.y );
        // if this changes the visibility of the scrollbars the best size changes, relayout in this case
        wxSize sizeCtrl2 = GetControllerSize();
        if ( sizeCtrl != sizeCtrl2 )
        {
            wxSize sizeBorder2 = m_bookctrl->GetSize() - m_bookctrl->GetClientSize();
            m_bookctrl->SetClientSize( sizeCtrl2.x - sizeBorder2.x, sizeCtrl2.y - sizeBorder2.y );
        }

        const wxSize sizeNew = m_bookctrl->GetSize();
        wxPoint posCtrl;
        switch ( GetWindowStyle() & wxBK_ALIGN_MASK )
        {
            default:
                wxFAIL_MSG( wxT("unexpected alignment") );
                // fall through

            case wxBK_TOP:
            case wxBK_LEFT:
                // posCtrl is already ok
                break;

            case wxBK_BOTTOM:
                posCtrl.y = sizeClient.y - sizeNew.y;
                break;

            case wxBK_RIGHT:
                posCtrl.x = sizeClient.x - sizeNew.x;
                break;
        }

        if ( m_bookctrl->GetPosition() != posCtrl )
            m_bookctrl->Move(posCtrl);
    }

    // resize all pages to fit the new control size
    const wxRect pageRect = GetPageRect();
    const unsigned pagesCount = m_pages.GetCount();
    for ( unsigned int i = 0; i < pagesCount; ++i )
    {
        wxWindow * const page = m_pages[i];
        if ( !page )
        {
            wxASSERT_MSG( AllowNullPage(),
                wxT("Null page in a control that does not allow null pages?") );
            continue;
        }

        page->SetSize(pageRect);
    }
}

int WINAPI WinMain(	HINSTANCE hinstance,
					HINSTANCE hprevinstance,
					LPSTR lpcmdline,
					int ncmdshow)
{
// this is the winmain function

WNDCLASS winclass;	// this will hold the class we create
HWND	 hwnd;		// generic window handle
MSG		 msg;		// generic message
HDC      hdc;       // generic dc
PAINTSTRUCT ps;     // generic paintstruct

// first fill in the window class stucture
winclass.style			= CS_DBLCLKS | CS_OWNDC | 
                          CS_HREDRAW | CS_VREDRAW;
winclass.lpfnWndProc	= WindowProc;
winclass.cbClsExtra		= 0;
winclass.cbWndExtra		= 0;
winclass.hInstance		= hinstance;
winclass.hIcon			= LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor		= LoadCursor(NULL, IDC_ARROW);
winclass.hbrBackground	= (HBRUSH)GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName	= NULL; 
winclass.lpszClassName	= WINDOW_CLASS_NAME;

// register the window class
if (!RegisterClass(&winclass))
	return(0);

// create the window, note the test to see if WINDOWED_APP is
// true to select the appropriate window flags
if (!(hwnd = CreateWindow(WINDOW_CLASS_NAME, // class
						  WINDOW_TITLE,	 // title
						  (WINDOWED_APP ? (WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION) : (WS_POPUP | WS_VISIBLE)),
					 	  0,0,	   // x,y
						  WINDOW_WIDTH,  // width
                          WINDOW_HEIGHT, // height
						  NULL,	   // handle to parent 
						  NULL,	   // handle to menu
						  hinstance,// instance
						  NULL)))	// creation parms
return(0);

// save the window handle and instance in a global
main_window_handle = hwnd;
main_instance      = hinstance;

// resize the window so that client is really width x height
if (WINDOWED_APP)
{
// now resize the window, so the client area is the actual size requested
// since there may be borders and controls if this is going to be a windowed app
// if the app is not windowed then it won't matter
RECT window_rect = {0,0,WINDOW_WIDTH-1,WINDOW_HEIGHT-1};

// make the call to adjust window_rect
AdjustWindowRectEx(&window_rect,
     GetWindowStyle(main_window_handle),
     GetMenu(main_window_handle) != NULL,  
     GetWindowExStyle(main_window_handle));

// save the global client offsets, they are needed in DDraw_Flip()
window_client_x0 = -window_rect.left;
window_client_y0 = -window_rect.top;

// now resize the window with a call to MoveWindow()
MoveWindow(main_window_handle,
           0, // x position
           0, // y position
           window_rect.right - window_rect.left, // width
           window_rect.bottom - window_rect.top, // height
           FALSE);

// show the window, so there's no garbage on first render
ShowWindow(main_window_handle, SW_SHOW);
} // end if windowed

// perform all game console specific initialization
Game_Init();

// disable CTRL-ALT_DEL, ALT_TAB, comment this line out 
// if it causes your system to crash
SystemParametersInfo(SPI_SCREENSAVERRUNNING, TRUE, NULL, 0);

// enter main event loop
while(1)
	{
	if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
		{ 
		// test if this is a quit
        if (msg.message == WM_QUIT)
           break;
	
		// translate any accelerator keys
		TranslateMessage(&msg);

		// send the message to the window proc
		DispatchMessage(&msg);
		} // end if
//.........这里部分代码省略.........

/* Set the final window size, set the window text and icon, and then unhide the
 * window. */
void GraphicsWindow::CreateGraphicsWindow( const VideoModeParams &p, bool bForceRecreateWindow )
{
	g_CurrentParams = p;

	// Adjust g_CurrentParams to reflect the actual display settings.
	AdjustVideoModeParams( g_CurrentParams );

	if( g_hWndMain == NULL || bForceRecreateWindow )
	{
		int iWindowStyle = GetWindowStyle( p.windowed );

		AppInstance inst;
		HWND hWnd = CreateWindow( g_sClassName, "app", iWindowStyle,
						0, 0, 0, 0, NULL, NULL, inst, NULL );
		if( hWnd == NULL )
			RageException::Throw( "%s", werr_ssprintf( GetLastError(), "CreateWindow" ).c_str() );

		/* If an old window exists, transfer focus to the new window before
		 * deleting it, or some other window may temporarily get focus, which
		 * can cause it to be resized. */
		if( g_hWndMain != NULL )
		{
			// While we change to the new window, don't do ChangeDisplaySettings in WM_ACTIVATE.
			g_bRecreatingVideoMode = true;
			SetForegroundWindow( hWnd );
			g_bRecreatingVideoMode = false;

			GraphicsWindow::DestroyGraphicsWindow();
		}

		g_hWndMain = hWnd;
		CrashHandler::SetForegroundWindow( g_hWndMain );
		g_HDC = GetDC( g_hWndMain );
	}

	// Update the window title.
	do
	{
		if( m_bWideWindowClass )
		{
			if( SetWindowText( g_hWndMain, ConvertUTF8ToACP(p.sWindowTitle).c_str() ) )
				break;
		}

		SetWindowTextA( g_hWndMain, ConvertUTF8ToACP(p.sWindowTitle) );
	} while(0);

	// Update the window icon.
	if( g_hIcon != NULL )
	{
		SetClassLong( g_hWndMain, GCL_HICON, (LONG) LoadIcon(NULL,IDI_APPLICATION) );
		DestroyIcon( g_hIcon );
		g_hIcon = NULL;
	}
	g_hIcon = IconFromFile( p.sIconFile );
	if( g_hIcon != NULL )
		SetClassLong( g_hWndMain, GCL_HICON, (LONG) g_hIcon );

	/* The window style may change as a result of switching to or from fullscreen;
	 * apply it. Don't change the WS_VISIBLE bit. */
	int iWindowStyle = GetWindowStyle( p.windowed );
	if( GetWindowLong( g_hWndMain, GWL_STYLE ) & WS_VISIBLE )
		iWindowStyle |= WS_VISIBLE;
	SetWindowLong( g_hWndMain, GWL_STYLE, iWindowStyle );

	RECT WindowRect;
	SetRect( &WindowRect, 0, 0, p.width, p.height );
	AdjustWindowRect( &WindowRect, iWindowStyle, FALSE );

	//LOG->Warn( "w = %d, h = %d", p.width, p.height );

	const int iWidth = WindowRect.right - WindowRect.left;
	const int iHeight = WindowRect.bottom - WindowRect.top;

	// If windowed, center the window.
	int x = 0, y = 0;
	if( p.windowed )
	{
		x = GetSystemMetrics(SM_CXSCREEN)/2-iWidth/2;
		y = GetSystemMetrics(SM_CYSCREEN)/2-iHeight/2;
	}

	/* Move and resize the window. SWP_FRAMECHANGED causes the above
	 * SetWindowLong to take effect. */
	if( !SetWindowPos( g_hWndMain, HWND_NOTOPMOST, x, y, iWidth, iHeight, SWP_FRAMECHANGED|SWP_SHOWWINDOW ) )
		LOG->Warn( "%s", werr_ssprintf( GetLastError(), "SetWindowPos" ).c_str() );

	SetForegroundWindow( g_hWndMain );

	/* Pump messages quickly, to make sure the window is completely set up.
	 * If we don't do this, then starting up in a D3D fullscreen window may
	 * cause all other windows on the system to be resized. */
	MSG msg;
	while( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
	{
		GetMessage( &msg, NULL, 0, 0 );
		DispatchMessage( &msg );
	}
//.........这里部分代码省略.........

void CBasicWindow::GetPosition(int *pLeft,int *pTop,int *pWidth,int *pHeight) const
{
	if (m_hwnd!=NULL) {
		RECT rc;

		if ((GetWindowStyle() & WS_CHILD)!=0) {
			::GetWindowRect(m_hwnd,&rc);
			::MapWindowPoints(NULL,::GetParent(m_hwnd),reinterpret_cast<POINT*>(&rc),2);
			if (pLeft)
				*pLeft=rc.left;
			if (pTop)
				*pTop=rc.top;
			if (pWidth)
				*pWidth=rc.right-rc.left;
			if (pHeight)
				*pHeight=rc.bottom-rc.top;
		} else {
			WINDOWPLACEMENT wp;

			wp.length=sizeof(WINDOWPLACEMENT);
			::GetWindowPlacement(m_hwnd,&wp);
			if (wp.showCmd==SW_SHOWNORMAL) {
				// 通常表示時はGetWindowRectの方が座標変換の問題がないので確実
				::GetWindowRect(m_hwnd,&rc);
			} else {
				/*
					WS_EX_TOOLWINDOWスタイルが付いていない場合は、
					rcNormalPositionはワークスペース座標になる(仕様が意味不明...)
				*/
				if ((GetWindowExStyle() & WS_EX_TOOLWINDOW)==0) {
					/*
						ワークスペース座標をスクリーン座標に変換
						しかし、マルチモニタの時はどのモニタのワークスペース座標が
						基準になっているのか不明...
					*/
					HMONITOR hMonitor=::MonitorFromWindow(m_hwnd,MONITOR_DEFAULTTONEAREST);
					MONITORINFO mi;

					mi.cbSize=sizeof(MONITORINFO);
					::GetMonitorInfo(hMonitor,&mi);
					::OffsetRect(&wp.rcNormalPosition,
								 mi.rcWork.left-mi.rcMonitor.left,
								 mi.rcWork.top-mi.rcMonitor.top);
				}
				rc=wp.rcNormalPosition;
			}
			if (pLeft)
				*pLeft=rc.left;
			if (pTop)
				*pTop=rc.top;
			if (pWidth)
				*pWidth=rc.right-rc.left;
			if (pHeight)
				*pHeight=rc.bottom-rc.top;
		}
	} else {
		if (pLeft)
			*pLeft=m_WindowPosition.Left;
		if (pTop)
			*pTop=m_WindowPosition.Top;
		if (pWidth)
			*pWidth=m_WindowPosition.Width;
		if (pHeight)
			*pHeight=m_WindowPosition.Height;
	}
}

bool
wxProgressDialog::Update(int value, const wxString& newmsg, bool *skip)
{
    wxASSERT_MSG( value == -1 || m_gauge, wxT("cannot update non existent dialog") );

#ifdef __WXMSW__
    value /= m_factor;
#endif // __WXMSW__

    wxASSERT_MSG( value <= m_maximum, wxT("invalid progress value") );

    if ( m_gauge )
        m_gauge->SetValue(value);

    UpdateMessage(newmsg);

    if ( (m_elapsed || m_remaining || m_estimated) && (value != 0) )
    {
        unsigned long elapsed = wxGetCurrentTime() - m_timeStart;
        if (    m_last_timeupdate < elapsed
             || value == m_maximum
           )
        {
            m_last_timeupdate = elapsed;
            unsigned long estimated = m_break +
                  (unsigned long)(( (double) (elapsed-m_break) * m_maximum ) / ((double)value)) ;
            if (    estimated > m_display_estimated
                 && m_ctdelay >= 0
               )
            {
                ++m_ctdelay;
            }
            else if (    estimated < m_display_estimated
                      && m_ctdelay <= 0
                    )
            {
                --m_ctdelay;
            }
            else
            {
                m_ctdelay = 0;
            }
            if (    m_ctdelay >= m_delay          // enough confirmations for a higher value
                 || m_ctdelay <= (m_delay*-1)     // enough confirmations for a lower value
                 || value == m_maximum            // to stay consistent
                 || elapsed > m_display_estimated // to stay consistent
                 || ( elapsed > 0 && elapsed < 4 ) // additional updates in the beginning
               )
            {
                m_display_estimated = estimated;
                m_ctdelay = 0;
            }
        }

        long display_remaining = m_display_estimated - elapsed;
        if ( display_remaining < 0 )
        {
            display_remaining = 0;
        }

        SetTimeLabel(elapsed, m_elapsed);
        SetTimeLabel(m_display_estimated, m_estimated);
        SetTimeLabel(display_remaining, m_remaining);
    }

    if ( value == m_maximum )
    {
        if ( m_state == Finished )
        {
            // ignore multiple calls to Update(m_maximum): it may sometimes be
            // troublesome to ensure that Update() is not called twice with the
            // same value (e.g. because of the rounding errors) and if we don't
            // return now we're going to generate asserts below
            return true;
        }

        // so that we return true below and that out [Cancel] handler knew what
        // to do
        m_state = Finished;
        if( !(GetWindowStyle() & wxPD_AUTO_HIDE) )
        {
            EnableClose();
            DisableSkip();
#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
            EnableCloseButton();
#endif // __WXMSW__

            if ( newmsg.empty() )
            {
                // also provide the finishing message if the application didn't
                m_msg->SetLabel(_("Done."));
            }

            wxYieldIfNeeded() ;

            (void)ShowModal();
        }
        else // auto hide
        {
            // reenable other windows before hiding this one because otherwise
//.........这里部分代码省略.........

wxSize wxSpinButton::DoGetBestSize() const
{
    return GetBestSpinnerSize( (GetWindowStyle() & wxSP_VERTICAL) != 0 );
}

void wxWindow::SetScrollbar(int orient,
                            int pos,
                            int pageSize,
                            int range,
                            bool refresh)
{
#if wxUSE_SCROLLBAR
    wxASSERT_MSG( pageSize <= range,
                    wxT("page size can't be greater than range") );

    bool hasClientSizeChanged = false;
    wxScrollBar *scrollbar = GetScrollbar(orient);
    if ( range && (pageSize < range) )
    {
        if ( !scrollbar )
        {
            // create it
#if wxUSE_TWO_WINDOWS
            SetInsertIntoMain( true );
#endif
            scrollbar = new wxWindowScrollBar(this, wxID_ANY,
                                              wxDefaultPosition, wxDefaultSize,
                                              orient & wxVERTICAL ? wxSB_VERTICAL
                                                                  : wxSB_HORIZONTAL);
#if wxUSE_TWO_WINDOWS
            SetInsertIntoMain( false );
#endif
            if ( orient & wxVERTICAL )
                m_scrollbarVert = scrollbar;
            else
                m_scrollbarHorz = scrollbar;

            // the client area diminished as we created a scrollbar
            hasClientSizeChanged = true;

            PositionScrollbars();
        }
        else if ( GetWindowStyle() & wxALWAYS_SHOW_SB )
        {
            // we might have disabled it before
            scrollbar->Enable();
        }

        scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh);
    }
    else // no range means no scrollbar
    {
        if ( scrollbar )
        {
            // wxALWAYS_SHOW_SB only applies to the vertical scrollbar
            if ( (orient & wxVERTICAL) && (GetWindowStyle() & wxALWAYS_SHOW_SB) )
            {
                // just disable the scrollbar
                scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh);
                scrollbar->Disable();
            }
            else // really remove the scrollbar
            {
                delete scrollbar;

                if ( orient & wxVERTICAL )
                    m_scrollbarVert = NULL;
                else
                    m_scrollbarHorz = NULL;

                // the client area increased as we removed a scrollbar
                hasClientSizeChanged = true;

                // the size of the remaining scrollbar must be adjusted
                if ( m_scrollbarHorz || m_scrollbarVert )
                {
                    PositionScrollbars();
                }
            }
        }
    }

    // give the window a chance to relayout
    if ( hasClientSizeChanged )
    {
#if wxUSE_TWO_WINDOWS
        wxWindowNative::SetSize( GetSize() );
#else
        wxSizeEvent event(GetSize());
        (void)GetEventHandler()->ProcessEvent(event);
#endif
    }
#else
    wxUnusedVar(orient);
    wxUnusedVar(pos);
    wxUnusedVar(pageSize);
    wxUnusedVar(range);
    wxUnusedVar(refresh);
#endif // wxUSE_SCROLLBAR
}

bool wxSpinCtrl::Create(wxWindow *parent,
                        wxWindowID id,
                        const wxString& value,
                        const wxPoint& pos,
                        const wxSize& size,
                        long style,
                        int min, int max, int initial,
                        const wxString& name)
{
    // this should be in ctor/init function but I don't want to add one to 2.8
    // to avoid problems with default ctor which can be inlined in the user
    // code and so might not get this fix without recompilation
    m_oldValue = INT_MIN;

    // before using DoGetBestSize(), have to set style to let the base class
    // know whether this is a horizontal or vertical control (we're always
    // vertical)
    style |= wxSP_VERTICAL;

    if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
#ifdef __WXWINCE__
        style |= wxBORDER_SIMPLE;
#else
        style |= wxBORDER_SUNKEN;
#endif

    SetWindowStyle(style);

    WXDWORD exStyle = 0;
    WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;

    // calculate the sizes: the size given is the toal size for both controls
    // and we need to fit them both in the given width (height is the same)
    wxSize sizeText(size), sizeBtn(size);
    sizeBtn.x = wxSpinButton::DoGetBestSize().x;
    if ( sizeText.x <= 0 )
    {
        // DEFAULT_ITEM_WIDTH is the default width for the text control
        sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
    }

    sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
    if ( sizeText.x <= 0 )
    {
        wxLogDebug(_T("not enough space for wxSpinCtrl!"));
    }

    wxPoint posBtn(pos);
    posBtn.x += sizeText.x + MARGIN_BETWEEN;

    // we must create the text control before the spin button for the purpose
    // of the dialog navigation: if there is a static text just before the spin
    // control, activating it by Alt-letter should give focus to the text
    // control, not the spin and the dialog navigation code will give focus to
    // the next control (at Windows level), not the one after it

    // create the text window

    m_hwndBuddy = (WXHWND)::CreateWindowEx
                    (
                     exStyle,                // sunken border
                     _T("EDIT"),             // window class
                     NULL,                   // no window title
                     msStyle,                // style (will be shown later)
                     pos.x, pos.y,           // position
                     0, 0,                   // size (will be set later)
                     GetHwndOf(parent),      // parent
                     (HMENU)-1,              // control id
                     wxGetInstance(),        // app instance
                     NULL                    // unused client data
                    );

    if ( !m_hwndBuddy )
    {
        wxLogLastError(wxT("CreateWindow(buddy text window)"));

        return false;
    }


    // create the spin button
    if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
    {
        return false;
    }

    wxSpinButtonBase::SetRange(min, max);

    // subclass the text ctrl to be able to intercept some events
    wxSetWindowUserData(GetBuddyHwnd(), this);
    m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),
                                                wxBuddyTextWndProc);

    // set up fonts and colours  (This is nomally done in MSWCreateControl)
    InheritAttributes();
    if (!m_hasFont)
        SetFont(GetDefaultAttributes().font);

    // set the size of the text window - can do it only now, because we
    // couldn't call DoGetBestSize() before as font wasn't set
//.........这里部分代码省略.........

void wxGenericHyperlinkCtrl::OnRightUp(wxMouseEvent& event)
{
    if( GetWindowStyle() & wxHL_CONTEXTMENU )
        if ( GetLabelRect().Contains(event.GetPosition()) )
            DoContextMenu(wxPoint(event.m_x, event.m_y));
}

void wxNotebook::OnPaint(wxPaintEvent& WXUNUSED(event))
{
    wxPaintDC dc(this);
    wxMemoryDC memdc;
    RECT rc;
    ::GetClientRect(GetHwnd(), &rc);
    wxBitmap bmp(rc.right, rc.bottom);
    memdc.SelectObject(bmp);

    const wxLayoutDirection dir = dc.GetLayoutDirection();
    memdc.SetLayoutDirection(dir);

    const HDC hdc = GetHdcOf(memdc);

    // The drawing logic of the native tab control is absolutely impenetrable
    // but observation shows that in the current Windows versions (XP and 7),
    // the tab control always erases its entire background in its window proc
    // when the tabs are top-aligned but does not do it when the tabs are in
    // any other position.
    //
    // This means that we can't rely on our background colour being used for
    // the blank area in the tab row because this doesn't work in the default
    // top-aligned case, hence the hack with ExtFloodFill() below. But it also
    // means that we still do need to erase the DC to account for the other
    // cases.
    //
    // Moreover, just in case some very old or very new (or even future,
    // although it seems unlikely that this is ever going to change by now)
    // version of Windows didn't do it like this, do both things in all cases
    // instead of optimizing away the one of them which doesn't do anything for
    // the effectively used tab orientation -- better safe than fast.

    // Notice that we use our own background here, not the background used for
    // the pages, because the tab row background must blend with the parent and
    // so the background colour inherited from it (if any) must be used.
    AutoHBRUSH hbr(wxColourToRGB(GetBackgroundColour()));

    ::FillRect(hdc, &rc, hbr);

    MSWDefWindowProc(WM_PAINT, (WPARAM)hdc, 0);

    // At least for the top-aligned tabs, our background colour was overwritten
    // and so we now replace the default background with our colour. This is
    // horribly inefficient, of course, but seems to be the only way to do it.
    if ( UseBgCol() )
    {
        SelectInHDC selectBrush(hdc, hbr);

        // Find the point which must contain the default background colour:
        // this is a hack, of course, but using this point "close" to the
        // corner seems to work fine in practice.
        int x = 0,
            y = 0;

        switch ( GetWindowStyle() & wxBK_ALIGN_MASK )
        {
            case wxBK_TOP:
                x = rc.right - 2;
                y = 2;
                break;

            case wxBK_BOTTOM:
                x = rc.right - 2;
                y = rc.bottom - 2;
                break;

            case wxBK_LEFT:
                x = 2;
                y = rc.bottom - 2;
                break;

            case wxBK_RIGHT:
                x = 2;
                y = rc.bottom - 2;
                break;
        }

        ::ExtFloodFill(hdc, x, y, ::GetSysColor(COLOR_BTNFACE), FLOODFILLSURFACE);
    }

    // For some reason in RTL mode, source offset has to be -1, otherwise the
    // right border (physical) remains unpainted.
    const wxCoord ofs = dir == wxLayout_RightToLeft ? -1 : 0;
    dc.Blit(ofs, 0, rc.right, rc.bottom, &memdc, ofs, 0);
}

//-----------------------------------------------------------------------------
// Name: CreateWindowedDisplay()
// Desc:
//-----------------------------------------------------------------------------
HRESULT CDisplay::CreateWindowedDisplay( HWND hWnd, DWORD dwWidth, DWORD dwHeight )
{
    HRESULT hr;

    // Cleanup anything from a previous call
    DestroyObjects();

    // DDraw stuff begins here
    if( FAILED( hr = DirectDrawCreateEx( NULL, (VOID**)&m_pDD,
                                         IID_IDirectDraw7, NULL ) ) )
        return E_FAIL;

    // Set cooperative level
    hr = m_pDD->SetCooperativeLevel( hWnd, DDSCL_NORMAL );
    if( FAILED(hr) )
        return E_FAIL;

    RECT  rcWork;
    RECT  rc;
    DWORD dwStyle;

    // If we are still a WS_POPUP window we should convert to a normal app
    // window so we look like a windows app.
    dwStyle  = GetWindowStyle( hWnd );
    dwStyle &= ~WS_POPUP;
    dwStyle |= WS_OVERLAPPED | WS_CAPTION | WS_THICKFRAME | WS_MINIMIZEBOX;
    SetWindowLong( hWnd, GWL_STYLE, dwStyle );

    // Aet window size
    SetRect( &rc, 0, 0, dwWidth, dwHeight );

    AdjustWindowRectEx( &rc, GetWindowStyle(hWnd), GetMenu(hWnd) != NULL,
                        GetWindowExStyle(hWnd) );

    SetWindowPos( hWnd, NULL, 0, 0, rc.right-rc.left, rc.bottom-rc.top,
                  SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );

    SetWindowPos( hWnd, HWND_NOTOPMOST, 0, 0, 0, 0,
                  SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE );

    //  Make sure our window does not hang outside of the work area
    SystemParametersInfo( SPI_GETWORKAREA, 0, &rcWork, 0 );
    GetWindowRect( hWnd, &rc );
    if( rc.left < rcWork.left ) rc.left = rcWork.left;
    if( rc.top  < rcWork.top )  rc.top  = rcWork.top;
    SetWindowPos( hWnd, NULL, rc.left, rc.top, 0, 0,
                  SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );

    LPDIRECTDRAWCLIPPER pcClipper;
    
    // Create the primary surface
    DDSURFACEDESC2 ddsd;
    ZeroMemory( &ddsd, sizeof( ddsd ) );
    ddsd.dwSize         = sizeof( ddsd );
    ddsd.dwFlags        = DDSD_CAPS;
    ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;

    if( FAILED( m_pDD->CreateSurface( &ddsd, &m_pddsFrontBuffer, NULL ) ) )
        return E_FAIL;

    // Create the backbuffer surface
    ddsd.dwFlags        = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT;    
    ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_3DDEVICE;
    ddsd.dwWidth        = dwWidth;
    ddsd.dwHeight       = dwHeight;

    if( FAILED( hr = m_pDD->CreateSurface( &ddsd, &m_pddsBackBuffer, NULL ) ) )
        return E_FAIL;

    if( FAILED( hr = m_pDD->CreateClipper( 0, &pcClipper, NULL ) ) )
        return E_FAIL;

    if( FAILED( hr = pcClipper->SetHWnd( 0, hWnd ) ) )
    {
        pcClipper->Release();
        return E_FAIL;
    }

    if( FAILED( hr = m_pddsFrontBuffer->SetClipper( pcClipper ) ) )
    {
        pcClipper->Release();
        return E_FAIL;
    }

    // Done with clipper
    pcClipper->Release();

    m_hWnd      = hWnd;
    m_bWindowed = TRUE;
    UpdateBounds();

    return S_OK;
}

static int CoolBarCtrlProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{
    HDC              hdc;
    PCOOLBARCTRL     TbarData;
    PCOOLBARITEMDATA pTbid;
        
    switch (message) {
        case MSG_CREATE:
        {
            DWORD data; 
            DWORD dwStyle;
            const char* caption;

            if ((TbarData = (COOLBARCTRL*) calloc (1, sizeof (COOLBARCTRL))) == NULL)
                return 1;

            TbarData->nCount = 0;
            TbarData->head = TbarData->tail = NULL;
            TbarData->BackBmp = NULL;
            TbarData->iSel = -1;
            TbarData->iMvOver = -1;
            TbarData->ShowHint = TRUE;
            TbarData->hToolTip = 0;

            ExcludeWindowStyle (hWnd, WS_BORDER);

            dwStyle = GetWindowStyle (hWnd);
            if (dwStyle & CBS_BMP_32X32) {
                TbarData->ItemWidth = 32;
                TbarData->ItemHeight = 32;
            }
            else if (dwStyle & CBS_BMP_CUSTOM) {
                data = GetWindowAdditionalData (hWnd);
                TbarData->ItemWidth = LOWORD (data);
                TbarData->ItemHeight = HIWORD (data);
            }
            else {
                TbarData->ItemWidth = 16;
                TbarData->ItemHeight = 16;
            }

            caption = GetWindowCaption (hWnd);
            if ((dwStyle & CBS_USEBKBMP) && caption [0]) {
                TbarData->BackBmp = (BITMAP*)calloc (1, sizeof (BITMAP));
                if (LoadBitmap (HDC_SCREEN, TbarData->BackBmp, caption) < 0) {
                    free (TbarData->BackBmp);
                    TbarData->BackBmp = NULL;
                    break;
                }
            }
            SetWindowAdditionalData2 (hWnd, (DWORD)TbarData);
        }
        break;

        case MSG_DESTROY:
        { 
            COOLBARITEMDATA* unloaddata, *tmp;
            TbarData = (PCOOLBARCTRL) GetWindowAdditionalData2(hWnd);
            if (TbarData->hToolTip != 0) {
                DestroyToolTipWin (TbarData->hToolTip);
                TbarData->hToolTip = 0;
            }

            if (TbarData->BackBmp) {
                UnloadBitmap (TbarData->BackBmp);
                free (TbarData->BackBmp);
            }

            unloaddata = TbarData->head;
            while (unloaddata) {
                tmp = unloaddata->next;
                free (unloaddata);
                unloaddata = tmp;
            }

            free (TbarData);
        }
        break;

        case MSG_SIZECHANGING:
        {
            const RECT* rcExpect = (const RECT*)wParam;
            RECT* rcResult = (RECT*)lParam;

            TbarData = (PCOOLBARCTRL) GetWindowAdditionalData2(hWnd);

            rcResult->left = rcExpect->left;
            rcResult->top = rcExpect->top;
            rcResult->right = rcExpect->right;
            rcResult->bottom = rcExpect->top + TbarData->ItemHeight + 8;
            return 0;
        }

		case MSG_SIZECHANGED:
		{
			RECT* rcWin = (RECT*)wParam;
			RECT* rcClient = (RECT*)lParam;
			*rcClient = *rcWin;
			return 1;
		}
//.........这里部分代码省略.........

bool wxControl::MSWCreateControl(const wxChar *classname,
                                 WXDWORD style,
                                 const wxPoint& pos,
                                 const wxSize& size,
                                 const wxString& label,
                                 WXDWORD exstyle)
{
    // if no extended style given, determine it ourselves
    if ( exstyle == (WXDWORD)-1 )
    {
        exstyle = 0;
        (void) MSWGetStyle(GetWindowStyle(), &exstyle);
    }

    // all controls should have this style
    style |= WS_CHILD;

    // create the control visible if it's currently shown for wxWidgets
    if ( m_isShown )
    {
        style |= WS_VISIBLE;
    }

    // choose the position for the control: we have a problem with default size
    // here as we can't calculate the best size before the control exists
    // (DoGetBestSize() may need to use m_hWnd), so just choose the minimal
    // possible but non 0 size because 0 window width/height result in problems
    // elsewhere
    int x = pos.x == wxDefaultCoord ? 0 : pos.x,
        y = pos.y == wxDefaultCoord ? 0 : pos.y,
        w = size.x == wxDefaultCoord ? 1 : size.x,
        h = size.y == wxDefaultCoord ? 1 : size.y;

    // ... and adjust it to account for a possible parent frames toolbar
    AdjustForParentClientOrigin(x, y);

    m_hWnd = (WXHWND)::CreateWindowEx
                       (
                        exstyle,            // extended style
                        classname,          // the kind of control to create
                        label.t_str(),      // the window name
                        style,              // the window style
                        x, y, w, h,         // the window position and size
                        GetHwndOf(GetParent()),         // parent
                        (HMENU)wxUIntToPtr(GetId()),    // child id
                        wxGetInstance(),    // app instance
                        NULL                // creation parameters
                       );

    if ( !m_hWnd )
    {
        wxLogLastError(wxString::Format
                       (
                        wxT("CreateWindowEx(\"%s\", flags=%08lx, ex=%08lx)"),
                        classname, style, exstyle
                       ));

        return false;
    }

#if !wxUSE_UNICODE
    // Text labels starting with the character 0xff (which is a valid character
    // in many code pages) don't appear correctly as CreateWindowEx() has some
    // special treatment for this case, apparently the strings starting with -1
    // are not really strings but something called "ordinals". There is no
    // documentation about it but the fact is that the label gets mangled or
    // not displayed at all if we don't do this, see #9572.
    //
    // Notice that 0xffff is not a valid Unicode character so the problem
    // doesn't arise in Unicode build.
    if ( !label.empty() && label[0] == -1 )
        ::SetWindowText(GetHwnd(), label.t_str());
#endif // !wxUSE_UNICODE

    // saving the label in m_labelOrig to return it verbatim
    // later in GetLabel()
    m_labelOrig = label;

    // install wxWidgets window proc for this window
    SubclassWin(m_hWnd);

    // set up fonts and colours
    InheritAttributes();
    if ( !m_hasFont )
    {
        bool setFont = true;

        wxFont font = GetDefaultAttributes().font;

        // if we set a font for {list,tree}ctrls and the font size is changed in
        // the display properties then the font size for these controls doesn't
        // automatically adjust when they receive WM_SETTINGCHANGE

        // FIXME: replace the dynamic casts with virtual function calls!!
#if wxUSE_LISTCTRL || wxUSE_TREECTRL
        bool testFont = false;
#if wxUSE_LISTCTRL
        if ( wxDynamicCastThis(wxListCtrl) )
            testFont = true;
#endif // wxUSE_LISTCTRL
//.........这里部分代码省略.........

wxSize wxSlider::DoGetBestSize() const
{
    wxSize size;
    int textwidth, textheight;
    int mintwidth, mintheight;
    int maxtwidth, maxtheight;

    textwidth = textheight = 0;
    mintwidth = mintheight = 0;
    maxtwidth = maxtheight = 0;

    if (GetWindowStyle() & wxSL_LABELS)
    {
        wxString text;

        // Get maximum text label width and height
        text.Printf( wxT("%d"), ValueInvertOrNot( m_rangeMin ) );
        GetTextExtent(text, &mintwidth, &mintheight);
        text.Printf( wxT("%d"), ValueInvertOrNot( m_rangeMax ) );
        GetTextExtent(text, &maxtwidth, &maxtheight);

        if (maxtheight > mintheight)
            textheight = maxtheight;
        else
            textheight = mintheight;

        if (maxtwidth > mintwidth)
            textwidth = maxtwidth;
        else
            textwidth = mintwidth;
    }

    if (GetWindowStyle() & wxSL_VERTICAL)
    {
        size.y = 150;

        if (GetWindowStyle() & wxSL_AUTOTICKS)
            size.x = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
        else
            size.x = wxSLIDER_DIMENSIONACROSS_ARROW;

        if (GetWindowStyle() & wxSL_LABELS)
            size.x += textwidth + wxSLIDER_BORDERTEXT;
    }
    else
    {
        size.x = 150;

        if (GetWindowStyle() & wxSL_AUTOTICKS)
            size.y = wxSLIDER_DIMENSIONACROSS_WITHTICKMARKS;
        else
            size.y = wxSLIDER_DIMENSIONACROSS_ARROW;

        if (GetWindowStyle() & wxSL_LABELS)
        {
            size.y += textheight + wxSLIDER_BORDERTEXT;
            size.x += (mintwidth / 2) + (maxtwidth / 2);
        }
    }

    return size;
}

//
// - returns true if DirectDraw was initialized properly
//
int  InitDirectDrawe (HWND appWin, int width, int height, int bpp, int fullScr)
{
	DDSURFACEDESC ddsd; // DirectDraw surface description for allocating
	DDSCAPS       ddscaps;
	HRESULT       ddrval;

	DWORD         dwStyle;
	RECT          rect;

	// enumerate directdraw devices
	//if (FAILED(DirectDrawEnumerate (myEnumDDDevicesCallback, NULL)))
	//      I_Error("Error with DirectDrawEnumerate");

	if (!DDr2)
		CreateDirectDrawInstance();

	// remember what screen mode we are in
	bAppFullScreen = fullScr;
	ScreenHeight = height;
	ScreenWidth = width;

	if (bAppFullScreen)
	{
		// Change window attributes
		dwStyle = WS_POPUP | WS_VISIBLE;
		SetWindowLong (appWin, GWL_STYLE, dwStyle);
		SetWindowPos(appWin, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOACTIVATE |
			SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER);

		// Get exclusive mode
		ddrval = IDirectDraw2_SetCooperativeLevel(DDr2, appWin, DDSCL_EXCLUSIVE |
		                                          DDSCL_FULLSCREEN |
		                                          DDSCL_ALLOWREBOOT);
		if (ddrval != DD_OK)
			I_Error("SetCooperativeLevel FAILED: %s\n", DXErrorToString(ddrval));

		// Switch from windows desktop to fullscreen

#ifdef NT4COMPAT
		ddrval = IDirectDraw2_SetDisplayMode(DDr2, width, height, bpp, 0, 0);
#else
		ddrval = IDirectDraw2_SetDisplayMode(DDr2, width, height, bpp, 0, DDSDM_STANDARDVGAMODE);
#endif
		if (ddrval != DD_OK)
			I_Error("SetDisplayMode FAILED: %s\n", DXErrorToString(ddrval));

		// This is not really needed, except in certain cases. One case
		// is while using MFC. When the desktop is initally at 16bpp, a mode
		// switch to 8bpp somehow causes the MFC window to not fully initialize
		// and a CreateSurface will fail with DDERR_NOEXCLUSIVEMODE. This will
		// ensure that the window is initialized properly after a mode switch.

		ShowWindow(appWin, SW_SHOW);

		// Create the primary surface with 1 back buffer. Always zero the
		// DDSURFACEDESC structure and set the dwSize member!

		ZeroMemory(&ddsd, sizeof (ddsd));
		ddsd.dwSize = sizeof (ddsd);
		ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
		ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;

		// for fullscreen we use page flipping, for windowed mode, we blit the hidden surface to
		// the visible surface, in both cases we have a visible (or 'real') surface, and a hidden
		// (or 'virtual', or 'backbuffer') surface.
		ddsd.dwBackBufferCount = 2;

		ddrval = IDirectDraw2_CreateSurface(DDr2,&ddsd, &ScreenReal, NULL);
		if (ddrval != DD_OK)
			I_Error("CreateSurface Primary Screen FAILED");

		// Get a pointer to the back buffer

		ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
		ddrval = IDirectDrawSurface_GetAttachedSurface(ScreenReal,&ddscaps, &ScreenVirtual);
		if (ddrval != DD_OK)
			I_Error("GetAttachedSurface FAILED");
	}
	else
	{
		rect.top = 0;
		rect.left = 0;
		rect.bottom = height;
		rect.right = width;

		// Change window attributes

		dwStyle = GetWindowStyle(appWin);
		dwStyle &= ~WS_POPUP;
		dwStyle |= WS_OVERLAPPED | WS_SYSMENU | WS_CAPTION;

		SetWindowLong(appWin, GWL_STYLE, dwStyle);

		// Resize the window so that the client area is the requested width/height

		AdjustWindowRectEx(