- •The ministry of education and science of ukraine kharkiv national university of radio electronics
- •1. The Basics of Microsoft Foundation Classes
- •Mfc general information
- •A Framework of mfc-program
- •Creating the Application Class
- •Creating the Frame-Window Class
- •Declaring a Message Map and instantiation of application object global instance
- •Defining a Message Map
- •Messages and their processing in mfc-programs
- •Writing Message Map Functions
- •Message boxes and menus in mfc-programs
- •2. Dialog windows
- •2.1 Modal and modeless dialog windows
- •2.2 The control elements of dialog window
- •CListBox::AddString (lpctstr lpszItem ); // Call this member function to add a string (lpszItem) to a list box;
- •3. Additional control elements in mfc-programs. Working with icons, cursors, raster images
- •3.1 Additional control elements
- •Radio buttons
- •Afx_msg void cWnd::OnVScroll( uint nSbCode, uint nPos, cScrollBar* pScrollBar ); afx_msg void cWnd::OnHScroll( uint nSbCode, uint nPos, cScrollBar* pScrollBar );
- •Afx_msg void OnVScroll( uint nSbCode, uint nPos, cScrollBar* pScrollBar );
- •Working with icons, cursors, raster images
- •The icons and cursor registration
- •Icon and cursor loading
- •4. The elements of text processing in mfc
- •The redrawing problem decision
- •5. The Elements of working with graphics
- •5.1 The graphics functions.
- •Working with brushes
- •5.2 The mapping modes and output regions
- •6. Common control elements
- •Windows Common Controls
- •6.2 The toolbar using
- •On resizing, the message wm_size is sent and the standard handler OnSize() is called.
- •The working with Spins
- •The working with slider
- •To set the range (minimum and maximum positions) for the slider in a slider control use the following function:
- •The working with progress bar
- •The tree control using in mfc programs
- •Adding elements to the tree
- •The status bars usage
- •Bool cStatusBarCtrl::SetParts( int nParts, int* pWidths );
- •Tab controls using in mfc-programs
- •Int cTabCtrl::GetCurSel(); To Selects a tab in a tab control use SetCurSel() function:
- •Int cTabCtrl::SetCurSel( int nItem );
- •The property sheets and wizards
- •7. Thread multitasking and it’s implementation in mfc
- •7.1 The basic features of multitasking
- •7.2 The Synchronization
- •7.3 The working with semaphore
- •7. 4 The working with event object
- •8. The concept of Document view
- •8.1 Introduction to document conception
- •The control of documents storing
- •8.2 The dynamic creation of objects
- •The application framework creation
- •The main window and application classes creation
- •Listing 8.1 The example of main window class in Document / View concept
- •Listing 8.2 The example of document class in Document / View concept
- •8.3 The document framework creation
- •8.4 The initiation of application
- •8.5 The standard id’s, used in Document / View concept
- •9. The special types of menu and their implementation in mfc
- •9.1 The description of special menu styles
- •The mechanism to make changes in menus
- •9.2 The dynamic and floating menus implementation
- •CMenu::CreatePopupMenu
- •The example programs to work with dynamic menus
- •10. The system of help
- •10.1 The basic information on help structures
- •The call of help
- •The file of help
- •The Help file creating
- •The example of rtf file
- •10.2 The Help system including to the mfc-program
- •Parameters:
- •Return Values: If the function succeeds, the return value is nonzero. If the function fails, the return value is zero.
- •10.3 The handlers of help messages
- •The processing of help calls
- •Wm_commandhelp message processing
- •10.4 Wm_contextmenu message processing
- •11. Manipulating Device-Independent Bitmaps
- •11.1 The types of bitmap
- •11.2 The structures included to bitmap
- •Introducing the cDib Class
- •11.3 Programming the cDib Class
- •Loading a dib into Memory
- •Other cDib Member Functions
- •Creating ShowDib program
- •Modifying ShowDib's Resources
- •Adding Code to ShowDib
- •Examining the OnFileOpen() Function
- •Examining the OnDraw() Function
- •12. The elements of Database Programming
- •12.1 Understanding Database Concepts
- •Accessing a Database
- •12.2 Mfc odbc Classes
- •Registering the Database
- •Creating the Basic Employee Application
- •Creating the Database Display
- •Adding and Deleting Records
- •12.4 Sorting and Filtering
- •12.5 Odbc versus dao
- •13. Remote Automation
- •13.1 The introduction to Remote Automation
- •13.2 The Remote Automation Connection Manager and user components
- •13.3 Automation
- •Automation Clients
- •13.4 ActiveX
- •ActiveX Document Servers
- •ActiveX Document Containers
- •ActiveX Document Views
- •13.5 ActiveX Documents
- •ActiveX Controls
- •Interaction Between Controls with Windows and ActiveX Control Containers
- •13.6 Optimization of ActiveX Controls
- •13.7 Automation Servers
- •13.8 Connection Points
- •14. Microsoft DirectX and the main items of its using
- •14.2 The Component Object Model
- •IUnknown Interface
- •DirectX com Interfaces
- •DirectDraw Architecture
- •Other DirectDraw Features
- •Width and Pitch
- •14.5 Support for 3d Surfaces in DirectX
- •14.6 Direct3d Integration with DirectDraw
- •Direct3d Device Interface
- •Direct3d Texture Interface
- •The Basics of DirectDraw
- •Step 6: Writing to the Surface.The first half of the wm_timer message in ddex1 is devoted to writing to the back buffer, as shown in the following example:
- •Loading Bitmaps on the Back Buffer
- •Step 1: Creating the Palette. The ddex2 sample first loads the palette into a structure by using the following code:
- •Step 4: Flipping the Surfaces. Flipping surfaces in the ddex2 sample is essentially the same process as that in the first example. Blitting from an Off-Screen Surface
- •Step 1: Creating the Off-Screen Surfaces. The following code is added to the doInit function in ddex3 to create the two off-screen buffers:
- •Color Keys and Bitmap Animation
- •Dynamically Modifying Palettes
- •Optimizations and Customizations
- •Blitting with Color Fill
- •Determining the Capabilities of the Display Hardware
- •Storing Bitmaps in Display Memory
- •Triple Buffering
- •15. General information on OpenGl
- •15.1 Common information
- •Primitives and Commands
- •OpenGl Graphic Control
- •Execution Model
- •15.2 Basic OpenGl Operation
- •OpenGl Correctness Tips
- •15.3 OpenGl example program
- •Ph.D. Assosiate prof. Tsimbal Alexander m. System software, summary of lectures.
14.2 The Component Object Model
Most APIs in the DirectX SDK are composed of objects and interfaces based on the COM. The COM is a foundation for an object-based system that focuses on reuse of interfaces, and it is the model at the heart of OLE programming. It is also an interface specification from which any number of interfaces can be built. It is an object model at the operating-system level.
Many DirectX APIs are instantiated as a set of OLE objects. You can consider an object to be a black box that represents the hardware and requires communication with applications through an interface. The commands sent to and from the object through the COM interface are called methods. For example, the IDirectDraw2::GetDisplayMode method is sent through the IDirectDraw2 interface to get the current display mode of the display adapter from the DirectDraw object.
Objects can bind to other objects at run time, and they can use the implementation of interfaces provided by the other object. If you know an object is an OLE object, and if you know which interfaces that object supports, your application (or another object) can determine which services the first object can perform. One of the methods all OLE objects inherit, the QueryInterface method, lets you determine which interfaces an object supports and creates pointers to these interfaces.
IUnknown Interface
All COM interfaces are derived from an interface called IUnknown. This interface provides DirectX with control of the object's lifetime and the ability to navigate multiple interfaces. IUnknown has three methods:
AddRef, which increments the object's reference count by 1 when an interface or another application binds itself to the object.
QueryInterface, which queries the object about the features it supports by requesting pointers to a specific interface.
Release, which decrements the object's reference count by 1. When the count reaches 0, the object is deallocated.
AddRef and Release maintain an object's reference count. For example, if you create a DirectDrawSurface object, the object's reference count is set to 1. Every time a function returns a pointer to an interface for that object, the function then must call AddRef through that pointer to increment the reference count. You must match each AddRef call with a call to Release. Before the pointer can be destroyed, you must call Release through that pointer. After an object's reference count reaches 0, the object is destroyed and all interfaces to it become invalid.
QueryInterface determines whether an object supports a specific interface. If an object supports an interface, QueryInterface returns a pointer to that interface. You then can use the methods contained in that interface to communicate with the object. If QueryInterface successfully returns a pointer to an interface, it implicitly calls AddRef to increment the reference count, so your application must call Release to decrement the reference count before destroying the pointer to the interface.