c gui programming with qt4 2nd edition download

... QRegExpValidator(regExp, this)); connect(okButton, SIGNAL(clicked()), this, SLOT(accept())); connect(cancelButton, SIGNAL(clicked()), this, SLOT(reject())); } void GoToCellDialog::on_lineEdit_textChanged() { okButton->setEnabled(lineEdit->hasAcceptableInput()); } In ... value (QDialog::Rejected) otherwise. Recall that when we created the Go to Cell dialog using Qt Designer in Chapter 2, we connected OK to accept() and Cancel to reject(). If the user chooses OK, we set the current ... button. Change its objectName to "cancelButton". 4. Create a vertical spacer and drag it below the Cancel button, then create a More button and drag it below the vertical spacer. Change...

Ngày tải lên: 31/03/2014, 10:21

... long months no one bought a commercial Qt license. In March 1996, the European Space Agency became the second Qt customer, with a purchase of ten commercial licenses. With unwavering faith, Eirik and ... its job. Click Cancel to close the dialog. 32 2. Creating Dialogs 016 QChar ch = first; 017 while (ch <= last) { 018 primaryColumnCombo->insertItem(ch); 019 secondaryColumnCombo->insertItem(ch); 020 ... Making Connections ã Using the Reference Documentation This chapter shows how to combine basic C ++ with the functionality provided by Qt to create a few small graphical user interface (GUI) applications....

Ngày tải lên: 23/03/2014, 22:20

... but we call it with three dierent numerical types. In this case, automatic type conversions permit the function to be called three times. src/functions> g++ overload-not.cpp src/functions> ... s . c p p #include < QTextStream> #include < QCoreApplication> #include < QStringList> int main (int argc, char* argv[]) { QCoreApplication app(argc, argv); QTextStream cout(stdout); QStringList ... i a b l e x accesses its data directly , but the variable px accesses the same data indirectly. is is why the word indirection is often used to characterize the process of accessing data through...

Ngày tải lên: 24/03/2014, 01:21

... Branches 122 A Merge with a Conflict 124 Working with Merge Conflicts 128 Locating Conflicted Files 129 Inspecting Conflicts 129 How Git Keeps Track of Conflicts 134 Finishing Up a Conflict Resolution ... different behavior: # Checkout the tag named "main .c& quot; $ git checkout main .c # Checkout the file named "main .c& quot; $ git checkout main .c Quick Introduction to Using Git To see git in action, ... used git commands are: add Add file contents to the index bisect Find the change that introduced a bug by binary search branch List, create, or delete branches checkout Checkout and switch to...

Ngày tải lên: 06/03/2014, 20:20

... access the class data values of the class to which it belongs, so every Account object can access the class data value minimum balance. Jillís : Acco unt 1304.98 current balance Jack’s : Account 354.00 current ... Account 908.55 current balance Jill’s : Account 1304.98 current balance Account minimum balance 100.00 Jack’s : Account 354.00 current balance Notice the class data value is underlined to show the fact that this value ... John’s : Account 908.55 current balance minimum balance 100.00 Jill’s : Account 1304.98 current balance minimum balance 100.00 Jack’s : Account 354.00 current balance minimum balance 100.00 Figure...

Ngày tải lên: 08/03/2014, 02:20

... 335 Creating POCO Classes 336 Creating an ObjectContext Class to Manage the POCOs 339 Change Tracking with POCOs 341 Understanding the Importance of DetectChanges 341 Loading Related Data with ... and Connections 555 Overriding EntityConnection Defaults 556 Working with Connection Strings Programmatically 557 Opening and Closing Connections 560 Getting the Store Connection from EntityConnection ... Service Operations 474 Creating WCF Data Services with Entities 474 Putting WCF Data Services in Perspective 475 Creating a WCF Data Service 475 Filtering at the Service Level Using QueryInterceptor...

Ngày tải lên: 08/03/2014, 18:20

... resource han- dlers; foreign controls. Chapter 10: Programming with Images Image classes in wxWidgets; programming with wxBitmap; programming with wxIcon; programming with wxCursor; programming with ... yielding. Chapter 18: Programming with wxSocket Socket classes and functionality overview; introduction to sockets and basic socket processing; connecting to a server; socket events; socket status ... Keith Gary Boyce, Chris Breeze, Sylvain Bougnoux, Wade Brainerd, Pete Britton, Ian Brown, C. Buckley, Doug Card, Marco Cavallini, Dmitri Chubraev, Robin Corbet, Cecil Coupe, Stefan Csomor, Andrew...

Ngày tải lên: 17/03/2014, 13:20

... between function calls. Defining the check Cave() Function 19. def checkCave(chosenCave): Now we are defining yet another function named checkCave(). Notice that we put the text chosenCave in between ... circled 1). Line 20 is in a block in a block (marked with a circled 2). And line 23 is the only line in another block in a block (marked with a circled 3). When you type code into IDLE, each ... scope and the local scope. Global Scope and Local Scope We have names for these scopes. The scope outside of all functions is called the glob al scope. The scope inside of a function is called...

Ngày tải lên: 24/03/2014, 03:22

... applications and to the Excel object model itself. We begin with a discussion of object models in general (Chapter 9 ). The succeeding chapters discuss what constitutes an Excel application (Chapter ... 4.7.1 Recording Macros Excel has the capability of recording very simple macros. When we ask Excel to record a macro by selecting Macro Record New Macro from Excel's (not Excel VBA's) ... objects in the Excel object model, such as the Application object (Chapter 16 ), which represents the Excel application itself; the Workbook object (Chapter 17 ), which represents an Excel...

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Ngày tải lên: 26/10/2014, 20:03

... used in comparisons with other characters. Certain characters can be represented in character and string constants by escape sequences like \n (newline); these sequences look like two characters, ... the other is specifically called for. For instance, consider the function squeeze(s ,c) , which removes all occurrences of the character c from the string s. /* squeeze: delete all c from s */ ... A character constant is an integer, written as one character within single quotes, such as 'x'. The value of a character constant is the numeric value of the character in the machine's character...

Ngày tải lên: 16/08/2012, 11:09

... Toronto 2 ELEMENTARY C+ + PROGRAMMING [CHAP. 1 Use their GCC package which includes a C+ + compiler and their Emacs editor. For DOS systems, use their DJGPP which includes a C+ + compiler. 1.2 SOMESIMPLEPROGRAMS Now ... ix AppendixA CharacterCodes 342 A.1 TheASCIICode 342 A.2 Unicode 346 AppendixB StandardC++Keywords 348 AppendixC StandardC++Operators 351 AppendixD StandardC++ContainerClasses 353 D.1 THE vector CLASSTEMPLATE ... standard output device which is usually the computer screen. The last two characters \n represent the newline character. When the output device encounters that character, it advances to the beginning...

Ngày tải lên: 19/03/2014, 14:10

... source, and a finishing point known as the destination, which are both called anchors. Each link that you see on a page that you can click is actually a source anchor, and each source anchor is created ... in Chapter 11. ❑ <meta>, which includes information about the document such as keywords and a description, which are particularly helpful for search applications; this is covered in Chapter ... <br /> element can carry the core attributes as well as an attribute called clear, which can be used with images, and is covered in Appendix I. clear class id style title Creating Preformatted...

Ngày tải lên: 31/03/2014, 16:51

... Unicode character. char literals can be simple, Unicode, or escape characters enclosed by single quote marks. For example, A is a simple character while \u0041 is a Unicode character. Escape characters ... nurses with milk, has hair), but it specializes these characteristics to the familiar characteristics of canine domesticus. A Cat is also a mammal. As such we expect it to share certain characteristics ... each specializes its own particular characteristics and behaviors. Programming C# , 2nd Edition 47 Example 3-12. The do while loop using System; public class Tester { public static...

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