learning the unix operating system 5th edition pdf download
Programming the Be Operating System-Chapter 9: Messages and Threads
... with system messages—messages generatedand dispatched by the system. The Message Protocols appendix of the Be Bookdefines all the system messages. In short, system messages fall into the followingcategories:Application ... posted message becomes the next in the queue, the looper invokesDispatchMessage() to pass the message to the target handler. The effect is for the posted message to reach the target handler’s ... sev-eral examples of the creating of messages and the dispatching of these messagesboth by the object that created them and by other objects.Figure 9-1. The inheritance hierarchy for the Application...
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Programming the Be Operating System-Chapter 10: Files
... For the Save file panel, the display of the panel comes when the userchooses the Save As item from the File menu. In response to the message issuedby the system to the appropriate MessageReceived() ... control is in the hands of the user. Once the user confirms a choice (whether it’s a file selection in the Openfile panel, a click on the Save button in the Save file panel, or a click on the Can-cel ... in either type of panel), a message is automatically sent by the system to the panel’s target. By default the panel’s target is the application object, but thiscan be changed (either in the BFilePanel...
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Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt
... during the execution of a program. Anobject can be added or deleted from the heap without regard for itsplacement in the heap, or for the other contents of the heap. The stack, on the other hand, ... such tasks. The zoom-ing and moving of windows is handled by the system, not by the SimpleApp code.This simple demonstration emphasizes the power of the BeOS system software—itis the system software ... window’s tab)• The type of the window (the look and feel of the window)• The behavior of the window (whether it has a resize knob, and so forth)Recall from your C++ background that when the definition...
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Tài liệu Programming the Be Operating System-Chapter 2: BeIDE Projects docx
... file with the same name as the project (andthus the same name as the application that will be built from the project). The header file holds the definition of the class derived from the BApplication ... anyresizing of the window. The final BView constructor parameter determines the types of notifications the view is to receive from the system. The Be constantB_WILL_DRAW means that the view should ... stated that the header file that bears the name of the project should hold the declaration of the project’s application class the class derived from the BApplication class. Here you see that the HelloWorld.h...
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Tài liệu Programming the Be Operating System-Chapter 3: BeOS API Overview doc
... toanother window.Class Descriptions and the Be Book The definitive source of information for the many classes that make up the BeOSsoftware kits is the Be class reference by the programmers of the ... to them, some oftheir classes appear throughout the book. See the description of the Support Kitbelow for a specific example concerning the BLocker class.Application Kit The classes of the ... created in the application constructor, the MyHelloWindow constructor is responsible for creating a new view, adding the view to the new window, and then displaying the new window. The new MyHelloWorld...
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Tài liệu Programming the Be Operating System-Chapter 4: Windows, Views, and Messages doc
... was clicked. The values of the point are in the view’s coor-dinate system. For example, if the cursor was over the very top left corner of the view at the time of the mouse click, the point’s ... If the point (100.1, 49.9) is used instead, the result is the same the win-dow’s corner ends up 100 pixels from the left and 50 pixels from the top of the screen. The above scenario begs the ... the window (to the top view), rather thanto another view, so both views are on the same level in the window’s view hierar-chy. The Draw() function of each view type includes code to frame the...
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Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt
... done in the Draw() function, wherea call to MovePenTo() ensures that the drawing will start in the top left corner of the view (and, because the view is the same size as the window, the top ... FillRegion(fThreeRectRegion);}Implementing the MouseDown() routine for the MyDrawView class is as easy ascomparing the cursor location (supplied by the system when it automaticallyinvokes MouseDown()) to the area of the region. The ... defines one of the fouredges of a rectangle. The values of the left and right members are relative to the left edge of the view that is to hold the rectangle, while the values of the topand bottom...
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Tài liệu Programming the Be Operating System-Chapter 6: Controls and Messages ppt
... the BWindow hook function Zoom() to shrink orenlarge the window. To allocate the handling of a message to one of its views, the window passes the message to the affected view, and the view then ... on it, as for a button), the system passes the applica-tion-defined message to the window. How the window handles the message isdetermined by the code you include in the BWindow member functionMessageReceived().Control ... values to the variables to be used in the control’s con-structor• Create the control using new and the control’s constructor• Attach the control to the window by adding it to one of the window’s...
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Tài liệu Programming the Be Operating System-Chapter 7: Menus docx
... as the item’s label when the user pulls down the menu in which the itemappears. The message parameter assigns a message of a particular type to the menu item.When the user chooses the item, the ... given the variable used to represent the sub-menu the name subMenu, it really is nothing more than a BMenu object. The itemsin the Dogs submenu were added the same way as the items in the Animalmenu—by ... all ofthese items need to be shifted within the window, it would make sense to haveall of the items attached to a view within the window rather than to the win-dow itself. Then a call to the...
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The Book of JavaScript, 2nd Edition pdf
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Tài liệu The Unix Family of Operating pdf
... several versions of Unix. Until a few years ago, there wer e twomain versions: the line of Unix releases that started at AT&T (the latest is System V Release 4), and another from the University ... andwindow systems. Our examples show the bash shell and the GNOME andKDE window environments. We’ve chosen them because they’re popularand make good examples, not because we think they’re always the ... advanced work or set up Unix systems for other users, we rec-ommend learning about a variety of shells and window systems andchoosing the best ones for your needs. The principles explained...
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... architectures.Today, the concept of an extensible operating system is once again gaining acceptance this time as the solutionto the unconstrained growth of UNIX. During the last 20 years operating systems and their ... tasks.Many other operating systems have met with this problem. Often these systems solve the problem by using insideknowledge of the algorithms used to manage secondary storage. Unfortunately, the Mach ... of the 8th Symposium on Operating System Principles, pages 64-75. December, 1981.[16] Rashid, R.F.From RIG to Accent to Mach: The Evolution of a Network Operating System. In Proceedings of the...
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- learning the unix operating system fifth edition free download
- learning the unix operating system fifth edition pdf download
- learning the unix operating system 5th edition pdf
- learning the unix operating system 5th edition
- learning the unix operating system 5th edition free download
- learning the unix operating system 5th edition download
- learning the unix operating system fifth edition download
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