Tài liệu Programming the Be Operating System-Chapter 3: BeOS API Overview doc

... determined by the status of the Argv Only checkbox. While these two items appear grouped together in the Application Flags area, they aren’t related. Neither, either, or both can be checked at the same ... Source Code 2 2. BeIDE Projects The BeOS CD-ROM includes the BeIDE Be s integrated development environ- ment (IDE) that’s used for creating Be applications. This programm...

Ngày tải lên: 26/01/2014, 07:20

... Book, double-click on the Chapter 4 document and scroll to the start of the BWindow class description. 88 Chapter 3: BeOS API Overview Overview The Overview section of the BWindow class description ... accompanies the listing of each data member. The specifics of how these data members are used by a BRect object appear in discussions of 86 Chapter 3: BeOS API Ov...

Ngày tải lên: 26/01/2014, 07:20

... version would be executed and the window would close—but the 1 Chapter 1 In this chapter: • Features of the BeOS • Structure of the BeOS • Software Kits and Their Classes • BeOS Programming Fundamentals • ... will be rectified in the balance of this book. Starting, in fact, with the next chapter. BeOS Programming Environment The programming tool you’ll be usi...

Ngày tải lên: 26/01/2014, 07:20

... chapter of the Be Book, the Kernel Kit chapter. The beep() global function plays the system beep. Sound (and thus the beep() function) is a topic covered in the Media Kit chapter of the Be Book. View ... altered—as they are here with the writing of the string “Quitting ” the view needs to be updated before the changes become visible onscreen. If the changes are ma...

Ngày tải lên: 26/01/2014, 07:20

... 10.0); The call to MovePenTo() moves the pen to the location 30 pixels from the left of the view and 40 pixels from the top of the view. That places the pen at the point (30.0, 40.0). The call ... StrokeRect(rect12); Shapes Be claims that the BeOS is an operating system for the graphics community. So it’s hoped that the BeOS makes it easy for programmers to s...

Ngày tải lên: 26/01/2014, 07:20

... *buttonBeep1Name = "Beep1"; const char *buttonBeep2Name = "Beep2"; const char *buttonBeep1Label = "Beep One"; const char *buttonBeep2Label = "Beep Two"; In the ... immediately change the setting. Instead, when the user dismisses the window the checkbox resides in, the value of the checkbox can be queried and the setting of the progra...

Ngày tải lên: 26/01/2014, 07:20

... to determine the item’s current label before changing it to a new string. The type of label-changing shown in the above snippet is a good candidate for the use of both Label() and SetLabel(). If the user ... BUTTON_BEEP_MSG: beep(); break; case MENU_BEEP_1_MSG: beep(); break; default: BWindow::MessageReceived(message); } } Because a click on the Beep One button and a selec...

Ngày tải lên: 26/01/2014, 07:20

... that the first parameter to the BMenuItem constructor, label, specifies the new menu item’s label the text the user sees in the menu. The second parameter, message, associates a message with the ... example. The arrows would not be in the window either—I’ve added them to make it clear that the coordinates of the textBounds rectangle are relative to the viewFrame rec...

Ngày tải lên: 26/01/2014, 07:20

... message and the target of the message don’t have to be one and the same, they can be as shown in this snippet (read the Application-Defined Messages 357 identical to the version used in the Chapter ... calls the BLooper function DispatchMessage() for the next message in the queue. When your posted message becomes the next in the queue, the looper invokes DispatchMes...

Ngày tải lên: 17/10/2013, 19:15

... of the program being used. The BeOS is no exception. In Figure 10-1, you see the standard Save file panel. The Open file panel looks similar to the Save file panel, with the primary difference being ... /boot/myDir/). The BEntry func- tion GetPath() is used to store the BEntry information as a BPath object. Here the BPath object path is first set to the directory, then...

Ngày tải lên: 20/10/2013, 10:15