learning the unix operating system fifth edition free pdf

Ngày tải lên: 25/11/2013, 11:07

... another shell prompt; you can enter UNIX commands again. Previous: 1.2 Syntax of UNIX Command Lines Learning the Unix Operating System Next: 1.4 The Unresponsive Terminal 1.2 Syntax of UNIX ... documentation on UNIX : 7.1. Standard UNIX Documentation DOS, accessing with UNIX : 4.4.6. Files on Other Operating Systems MTOOLS utilities for : 4.4.6. Files on Other Operating Systems dot ... Rights Reserved. The UNIX CD Bookshelf Navigation file:///C|/Documents%20and%20Settings/nmyers/Desktop/learn _unix/ index/idx_i.htm [6/30/2002 3:41:00 PM] Learning the Unix Operating System By Jerry...

Ngày tải lên: 18/03/2014, 00:20

... with system messages—messages generated and dispatched by the system. The Message Protocols appendix of the Be Book defines all the system messages. In short, system messages fall into the following categories: Application ... posted message becomes the next in the queue, the looper invokes DispatchMessage() 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 messages both by the object that created them and by other objects. Figure 9-1. The inheritance hierarchy for the Application...

Ngày tải lên: 17/10/2013, 19:15

... For the Save file panel, the display of the panel comes when the user chooses the Save As item from the File menu. In response to the message issued by 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 Open file 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 this can be changed (either in the BFilePanel...

Ngày tải lên: 20/10/2013, 10:15

... during the execution of a program. An object can be added or deleted from the heap without regard for its placement 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—it is 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...

Ngày tải lên: 26/01/2014, 07:20

... file with the same name as the project (and thus 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 ... any resizing of the window. The final BView constructor parameter determines the types of notifications the view is to receive from the system. The Be constant B_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...

Ngày tải lên: 26/01/2014, 07:20

... to another window. Class Descriptions and the Be Book The definitive source of information for the many classes that make up the BeOS software kits is the Be class reference by the programmers of the ... to them, some of their classes appear throughout the book. See the description of the Support Kit below 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...

Ngày tải lên: 26/01/2014, 07:20

... 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 than to 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...

Ngày tải lên: 26/01/2014, 07:20

... done in the Draw() function, where a 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 as comparing the cursor location (supplied by the system when it automatically invokes MouseDown()) to the area of the region. The ... defines one of the four edges 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 top and bottom...

Ngày tải lên: 26/01/2014, 07:20

... the BWindow hook function Zoom() to shrink or enlarge 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 is determined by the code you include in the BWindow member function MessageReceived(). 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...

Ngày tải lên: 26/01/2014, 07:20

... as the item’s label when the user pulls down the menu in which the item appears. 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 items in the Dogs submenu were added the same way as the items in the Animal menu—by ... all of these items need to be shifted within the window, it would make sense to have all of the items attached to a view within the window rather than to the win- dow itself. Then a call to the...

Ngày tải lên: 26/01/2014, 07:20

... When the contents of the view a scrollbar is attached to exceed the size of the view, the scrollbar’s knob appears and the scrollbar becomes enabled. As the content of the view increases, the ... the window, so the default state for the BStringView text has the text starting 10 pixels from the left edge of the win- dow. Figure 8-6 makes it clear that this isn’t the starting point of the ... snippet produces the text shown in the window in Figure 8-4: BFont theFont(be_plain_font); theFont.SetSize(24.0); theFont.SetRotation(45.0); theView->SetFont(&theFont); theView->MovePenTo(70.0,...

Ngày tải lên: 26/01/2014, 07:20

... of these will be dealt with and the main theories within each will be summarized and a concluding evaluation made. There are also the theories from which, in one sense, all the others derive – the historically ... obvious by now, the aim of this book is to give an overview of theories of emotion and to consider their worth. The structure of the book is simple. The many theories of emotion, and there are at ... judge the worth of a theory. What a theory of emotion should do With these more general concerns as a background, the foreground is taken up with emotion theories themselves. What should they...

Ngày tải lên: 15/02/2014, 15:20

... increase further the overall size of the book and we therefore have eliminated some redundant material. Further, the reader will notice the present subdivision into three volumes, in which the ®rst ... Convergence criteria The assumed shape functions limit the in®nite degrees of freedom of the system, and the true minimum of the energy may never be reached, irrespective of the ®neness of subdivision. ... occurred. The expanding research and ®eld of application of ®nite elements led to the second edition in 1971, the third in 1977 and the fourth in 1989 and 1991. The size of each of these volumes...

Ngày tải lên: 14/03/2014, 15:20

... others. Dennis and More 9 survey the ®eld exten- sively, while Matthies and Strang 10 appear to be the ®rst to use the procedures in the ®nite element context. Further work and assessment of the ... in an identity. Further, the form of Eq. (2.22) guarantees preservation of the symmetry of the original matrix. The nature of the update does not preserve any sparsity in the original matrix. ... time. In the above, and in the sequel, we always use the convention that repeated indices in a term are summed over the range of the index. In addition, a partial derivative with respect to the coordinate...

Ngày tải lên: 14/03/2014, 15:20

... Professor Nigel Weatherill and Dr. Oubay Hassan who have contributed several of the diagrams and colour plates and, in particular, the cover of the book. The recent work on the CBS algorithm has ... and whether or not transiently or incidentally to some other use of this publication) without the written permission of the copyright holder except in accordance with the provisions of the Copyright, Designs ... possible. Any analysis must therefore concentrate on the motion, and the essential independent variable is thus the velocity u or, if we adopt the indicial notation (with the x; y; z axes referred...

Ngày tải lên: 14/03/2014, 15:20

Ngày tải lên: 22/03/2014, 11:20

Ngày tải lên: 07/04/2014, 15:52