The Ring programming language version 1.6 book - Part 189 of 189

1. Ring Documentation, Release 1.6
Language Design, 34
Tree Class
Stdlib Classes, 348
Triangle Rotation
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 528
Trim()
Strings, 216
TrimAll()
Stdlib Functions, 337
TrimLeft()
Stdlib Functions, 337
TrimRight()
Stdlib Functions, 338
TrueType Fonts
Graphics and Game Programming, 455
Try/Carch/Done
Eval() and Debugging, 254
Trying to be natural
Language Design, 29
Type Hints Library
What is new in Ring 1.5?, 80
Type()
Data Type, 225
Ungetc()
Files, 243
Unsigned()
Mathematical Functions, 235
Update the Android SDK
Building RingQt Applications for Mobile, 695
Upload Files
Web Development (CGI Library), 396
URL Encode
Web Development (CGI Library), 401
Use TTF Fonts
RingLibSDL, 464
User Types
The Type Hints Library, 741
Users registration and Login
Web Development (CGI Library), 423
Using ’<’ and ’:’ operators as ’from’ keyword
What is new in Ring 1.3?, 113
Using ’case’ as ’on’ in switch statements
Syntax Flexibility, 738
Using ’def’ as ’func’ in functions/methods definition
Syntax Flexibility, 738
Using ’end’ keyword after Packages/Classes/Functions
Syntax Flexibility, 739
Using ’endpackage’/’endclass’/’endfunc’ keywords after
Packages/Classes/Functions
Syntax Flexibility, 739
Using ’put’ and ’get’ as ’see’ and ’give’
Syntax Flexibility, 738
Using () around the function parameters
Syntax Flexibility, 732
Using ? to print expression then new line
Getting Started - First Style, 144
What is new in Ring 1.6?, 46
in the start of the variable name
Syntax Flexibility, 735
Using && and || operators
What is new in Ring 1.6?, 45
Using _ in numbers
Mathematical Functions, 236
Using Atom
Using Other Code Editors, 167
Using Bootstrap Library using Functions
Web Development (CGI Library), 417
Using Bootstrap Library using Objects
Web Development (CGI Library), 418
Using braces { } in Packages/Classes/Functions
Syntax Flexibility, 739
Using Braces to access objects inside Class Methods
Scope Rules, 716
Using braces to escape from the current object scope
Scope Rules, 724
Using braces to start and end different control structures
Syntax Flexibility, 737
Using C/C++ Compiler and Linker
Distributing Ring Application, 760
Using configuration file that wrap C++ library
Code Generator, 820
Using CR as Carriage return
What is new in Ring 1.6?, 45
Using Emacs Editor
Using Other Code Editors, 169
Using Eval() with our Natural Code
Natural Language Programming, 374
Using f after numbers
Mathematical Functions, 236
Using Fonts
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 549
Using Geany
Using Other Code Editors, 166
Using Layout
Desktop and Mobile Development, 591
Using Layouts
Form Designer, 711
Using Lists during definition
Lists, 211
Using Many Source Code Files
Program Structure, 205
Using Notepad++
Using Other Code Editors, 165
Using NULL instead of NULLPointer()
What is new in Ring 1.2?, 121
Index 1853

2. Ring Documentation, Release 1.6
Using Object.Attribute
Scope Rules, 713
Using Other Code Editors
Introduction, 164
Using Atom, 167
Using Emacs Editor, 169
Using Geany, 166
Using Notepad++, 165
Using Sublime Text 2, 168
Using Visual Studio IDE, 169
Using QCheckBox
Desktop and Mobile Development, 618
Using QComboBox Class
Desktop and Mobile Development, 599
Using QDateEdit
Desktop and Mobile Development, 613
Using QDesktopWidget Class
Desktop and Mobile Development, 653
Using QDial
Desktop and Mobile Development, 614
Using QDockWidget
Desktop and Mobile Development, 606
Using QFrame
Desktop and Mobile Development, 623
Using QInputDialog Class
Desktop and Mobile Development, 644
Using qLCDNumber
Desktop and Mobile Development, 641
Using QProgressBar
Desktop and Mobile Development, 610
Using QProgressBar and Timer
Desktop and Mobile Development, 633
Using QRadioButton and QButtonGroup
Desktop and Mobile Development, 619
Using QSlider
Desktop and Mobile Development, 611
Using QSpinBox
Desktop and Mobile Development, 611
Using QTableWidget
Desktop and Mobile Development, 609
Using QTabWidget
Desktop and Mobile Development, 607
Using QTreeView and QFileSystemModel
Desktop and Mobile Development, 597
Using QTreeWidget and QTreeWidgetItem
Desktop and Mobile Development, 598
Using QWebView
Desktop and Mobile Development, 617
Using Ring2EXE
Building RingQt Applications for Mobile, 698
Distributing Ring Application using Ring2EXE, 761
Using RingOpenGL and RingAllegro for 3D Graphics
3D Cube and Texture, 570
Introduction, 569
Many Cubes, 574
TicTacToe 3D Game, 579
Using RingOpenGL and RingFreeGLUT for 3D Graphics
Drawing using RingOpenGL, 524
Frames Per Second, 557
Introduction, 521
Keyboard Events and Colors, 529
Make a Cube using RingOpenGL and RingFreeG-
LUT, 566
Menu Events, 542
Mouse Events, 538
Samples Source (Authors), 522
The Camera, 532
The First Triangle, 525
The First Window using RingFreeGLUT, 523
Triangle Rotation, 528
Using Fonts, 549
What is RingFreeGLUT?, 523
What is RingOpenGL?, 522
Window Resize Event, 526
Using RingZip Classes
RingZip, 445
Using Self.Attribute
Object Oriented Programming, 298
Using Self.Attribute in the Class Region to define new at-
tributes
What is new in Ring 1.1?, 131
Using Semi-colon after and between statements
Syntax Flexibility, 734
Using Sublime Text 2
Using Other Code Editors, 168
Using Tab instead of char(9)
What is new in Ring 1.6?, 44
Using the
operator as not
What is new in Ring 1.6?, 45
Using the ’else’ keyword as ’other’ in switch statement
Syntax Flexibility, 735
Using the ’elseif’ keyword as ’but’ in if statement
Syntax Flexibility, 735
Using the ’end’ keyword in different control structures
Syntax Flexibility, 736
Using the Interactive Debugger
The Trace Library and the Interactive Debugger, 792
Using the Natural Library
Defining Commands, 382
Defining commands using classes, 385
Introduction, 379
Natural Library - Demo Program, 380
Operators, 384
Using the QColorDialog Class
Desktop and Mobile Development, 640
Using the QFileDialog Class
Desktop and Mobile Development, 635
Index 1854

3. Ring Documentation, Release 1.6
Using the QListWidget Class
Desktop and Mobile Development, 594
Using the QTextEdit Class
Desktop and Mobile Development, 593
Using the QTimer Class
Desktop and Mobile Development, 632
Using the tool
Code Generator, 811
Using This.Attribute in nested Braces inside the Class
Methods
What is new in Ring 1.1?, 131
Using Types inside Code
The Type Hints Library, 742
Using Visual Studio IDE
Using Other Code Editors, 169
value()
Stdlib Functions, 325
Variables
Deep Copy, 171
Dynamic Typing, 171
Introduction, 170
Weakly Typed, 172
Variables Scope
Functions - First Style, 195
Functions - Second Style, 199
Functions - Third Style, 203
varptr()
Low Level Functions, 771
Version() Function
System Functions, 252
Video-Music-Player Application
Applications developed in little hours, 9
What is new in Ring 1.5?, 48
Virtual Machine Instructions
Reference, 1815
Visual Implementation
Language Design, 35
Weakly Typed
Variables, 172
Web Development (CGI Library)
Application Class, 435
Configure the Apache web server, 387
Cookies, 399
CRUD Example using MVC, 421
Database, ModelBase & ControllerBase classes, 429
Generating Pages using Objects, 411
Gradient, 410
Hash Functions, 405
Hello World Program using the Web Library, 388
HTML Lists, 408
HTML Special Characters, 404
HTML Tables, 409
HtmlPage Class, 416, 440
HTTP Get Example, 389
HTTP POST Example, 394
Introduction, 386
Page Class, 436
Random Image, 407
Ring CGI Hello World Program, 388
ScriptFunctions Class, 438
StyleFunctions Class, 438
Templates, 402
Upload Files, 396
URL Encode, 401
Users registration and Login, 423
Using Bootstrap Library using Functions, 417
Using Bootstrap Library using Objects, 418
Web Library Features, 389
WebLib API, 434
WebPage Class, 439
Web Library Features
Web Development (CGI Library), 389
WebLib API
Web Development (CGI Library), 434
WebPage Class
Web Development (CGI Library), 439
Weight History Application
Desktop and Mobile Development, 661
Werdy Application
Applications developed in little hours, 12
What about predefined parameters or optional parameters
in functions?
Frequently Asked Questions, 1791
What about the Boolean values in Ring?
Frequently Asked Questions, 1783
What are the advantages to using Ring over C# or Java?
Frequently Asked Questions, 1781
What are the advantages to using Ring over Lisp or
Smalltalk?
Frequently Asked Questions, 1778
What are the advantages to using Ring over native C or
C++?
Frequently Asked Questions, 1779
What are the advantages to using Ring over Python and
Ruby?
Frequently Asked Questions, 1780
What are the advantages to using Ring over Tcl and Lua?
Frequently Asked Questions, 1780
What happens when we create a new object?
Frequently Asked Questions, 1787
What is new in Ring 1.1?
Better Code Generator for Extensions, 131
Better Documentation, 131
Better Natural Language Programming Support, 123
Game Engine for 2D Games, 129
Generate/Execute Ring Object Files (*.ringo), 124
Index 1855

4. Ring Documentation, Release 1.6
Introduction, 122
List of changes and new features, 123
New Functions and Changes, 126
RingLibSDL, 129
RingSQLite, 130
StdLib functions and classes written in Ring, 127
Syntax Flexibility, 124
Using Self.Attribute in the Class Region to define
new attributes, 131
Using This.Attribute in nested Braces inside the
Class Methods, 131
What is new in Ring 1.2?
Better Call Command, 121
Better Functions, 118
Better Quality, 121
Better Ring Notepad, 118
Better RingQt, 118
Display Warnings Option, 121
Introduction, 116
List of changes and new features, 117
New Functions, 117
Objects Library for RingQt, 119
RingLibCurl, 120
Using NULL instead of NULLPointer(), 121
What is new in Ring 1.3?
Better Loop|Exit Command, 112
Better Ring Notepad, 108
Better RingQt, 104
Better StdLib, 112
Embedding Ring in Ring without sharing the State,
114
Form Designer, 115
Introduction, 103
List of changes and new features, 104
New Functions, 113
Return Self by Reference, 113
Ring mode for Emacs Editor, 111
RingZip Library, 114
Using ’<’ and ’:’ operators as ’from’ keyword, 113
What is new in Ring 1.4.1?
What is new in Ring 1.4?, 100
What is new in Ring 1.4?
Better RingQt, 99
Better StdLib, 97
Better WebLib, 97
Change: Basic Extensions are separated from
RingVM, 92
Convert between Numbers and Bytes, 96
Introduction, 91
List of changes and new features, 92
New Style to Ring Notepad, 95
Qt Class Convertor, 99
RingREPL, 95
The Natural Library, 93
What is new in Ring 1.4.1?, 100
What is new in Ring 1.5.1?
What is new in Ring 1.5?, 81
What is new in Ring 1.5.2?
What is new in Ring 1.5?, 86
What is new in Ring 1.5.3?
What is new in Ring 1.5?, 87
What is new in Ring 1.5.4?
What is new in Ring 1.5?, 90
What is new in Ring 1.5?
Better Code Generator for Extensions, 72
Better Documentation Generator for Extensions, 73
Better Objects Library, 59
Better Quality, 81
Better Ring Notepad, 50
Better RingQt, 57
Better StdLib, 53
Better WebLib, 54
Calculator Application, 49
Introduction, 47
List of changes and new features, 48
More Syntax Flexibility, 79
Ring VM - Tracing Functions, 73
RingFreeGLUT Extension, 59
RingOpenGL Extension, 68
Trace Library and Interactive Debugger, 77
Type Hints Library, 80
Video-Music-Player Application, 48
What is new in Ring 1.5.1?, 81
What is new in Ring 1.5.2?, 86
What is new in Ring 1.5.3?, 87
What is new in Ring 1.5.4?, 90
Windows StartUp Manager Application, 49
What is new in Ring 1.6?
Better Ring For Android, 38
Better Ring Notepad, 41
Better RingQt, 43
Better RingREPL, 44
Better RingVM, 44
Better Scripts for building Ring, 40
Better StdLib, 44
Employee Application, 37
Introduction, 36
List of changes and new features, 37
New Tool: Folder2qrc, 39
New Tool: Ring2EXE, 38
RingConsoleColors Extension, 40
RingMurmurHash Extension, 40
Using ? to print expression then new line, 46
Using && and || operators, 45
Using CR as Carriage return, 45
Using Tab instead of char(9), 44
Using the
operator as not, 45
Index 1856

5. Ring Documentation, Release 1.6
What is RingFreeGLUT?
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 523
What is RingOpenGL?
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 522
What is the difference between Ring and Python? And is
Ring Open Source?
Frequently Asked Questions, 1779
Where can I write a program and execute it?
Frequently Asked Questions, 1790
Which of 3 coding styles are commonly used or recom-
mended by the community?
Frequently Asked Questions, 1808
While Loop
Control Structures - First Style, 177
Control Structures - Third Style, 187
Why do we need Yet Another Programming Language
(YAPL)?
Frequently Asked Questions, 1777
Why I get a strange result when printing nl with lists?
Frequently Asked Questions, 1792
Why I get Calling Function without definition Error?
Frequently Asked Questions, 1803
Why Ring is largely focussed on UI creation?
Frequently Asked Questions, 1778
Why Ring is not case-sensitive
Frequently Asked Questions, 1785
Why Ring is weakly typed?
Frequently Asked Questions, 1778
Why Ring uses ’See’, ’Give’, ’But’ and ’Ok’ Keywords?
Frequently Asked Questions, 1782
Why Ring?
Language Design, 28
Why setClickEvent() doesn’t see the object methods di-
rectly?
Frequently Asked Questions, 1803
Why the ability to define your own languages Instead of
just handing over the syntax so you can parse it
using whatever code you like?
Frequently Asked Questions, 1781
Why the Assignment operator uses Deep copy?
Frequently Asked Questions, 1786
Why the window title bar is going outside the screen?
Frequently Asked Questions, 1797
Why this example use the GetChar() twice?
Frequently Asked Questions, 1794
Why Type Hints?
The Type Hints Library, 741
Why we don’t use () after the qApp class name?
Frequently Asked Questions, 1797
Why you can specify the number of loops you want to
break out of?
Frequently Asked Questions, 1782
Window Flags
Form Designer, 710
Window Resize Event
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 526
Windows StartUp Manager Application
Applications developed in little hours, 11
What is new in Ring 1.5?, 49
Windowsnl() Function
System Functions, 250
Wrap structures
Code Generator, 813
Wrapping C++ Classes
Code Generator, 819
Write file using Write()
Files, 238
Writing Comments
Getting Started - First Style, 145
Getting Started - Second Style, 147
Getting Started - Third Style, 149
Zip Class Reference
RingZip, 447
ZipEntry Class Reference
RingZip, 447
Index 1857