自学教程：C++ GetWindowStyle函数代码示例

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 controlsvoid 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 functionWNDCLASS winclass;	// this will hold the class we createHWND	 hwnd;		// generic window handleMSG		 msg;		// generic messageHDC      hdc;       // generic dcPAINTSTRUCT ps;     // generic paintstruct// first fill in the window class stucturewinclass.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 classif (!RegisterClass(&winclass))	return(0);// create the window, note the test to see if WINDOWED_APP is// true to select the appropriate window flagsif (!(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 parmsreturn(0);// save the window handle and instance in a globalmain_window_handle = hwnd;main_instance      = hinstance;// resize the window so that client is really width x heightif (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 matterRECT window_rect = {0,0,WINDOW_WIDTH-1,WINDOW_HEIGHT-1};// make the call to adjust window_rectAdjustWindowRectEx(&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 renderShowWindow(main_window_handle, SW_SHOW);} // end if windowed// perform all game console specific initializationGame_Init();// disable CTRL-ALT_DEL, ALT_TAB, comment this line out // if it causes your system to crashSystemParametersInfo(SPI_SCREENSAVERRUNNING, TRUE, NULL, 0);// enter main event loopwhile(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
C++ GetWindowStyleFlag函数代码示例
C++ GetWindowRect函数代码示例