The Ring programming language version 1.8 book - Part 200 of 202

Ring Documentation, Release 1.8
Scope Rules, 758
How Ring2EXE works?
Distributing Ring Application using Ring2EXE, 813
How to add Combobox and other elements to the cells of
a QTableWidget?
Frequently Asked Questions, 917
How to Close a window then displaying another one?
How to contribute?
Applications, 166
Compiler and Virtual Machine (VM), 166
Documentation, 165
Editors Support, 166
Extensions in C/C++, 166
Ideas and suggestions, 166
Introduction, 164
Libraries in Ring, 166
Samples, 165
Special thanks to contributors, 165
Testing, 165
How to create a Modal Window?
How to create an array of buttons in GUI applications?
How to extend RingQt and add more classes?
How to get the current source file path?
How to get the file size using ftell() and fseek() functions?
How to insert an item to the first position in the list?
How to perform some manipulations on selected cells in
QTableWidget?
How to print keys or values only in List/Dictionary?
How to print lists that contains objects?
How to print new lines and other characters?
How to use many source code files in the project?
How to use NULL and ISNULL() function?
How to use SQLite using ODBC?
HTML Lists
Web Development (CGI Library), 439
HTML Special Characters
HTML Tables
HtmlPage Class
Web Development (CGI Library), 447, 471
HTTP Get Example
HTTP POST Example
Ideas and suggestions
How to contribute?, 166
If Statement
Control Structures - Second Style, 207
Control Structures - Third Style, 210
Ignore new lines after keywords
Syntax Flexibility, 786
Important Information about Ring2EXE
Inheritance
Object Oriented Programming, 323
Inheritance from GUI Classes
Desktop and Mobile Development, 693
Innovative
Applications developed in little hours, 20
Input()
Getting Input, 216
Insert()
Lists, 235
Install Qt for Android
Building RingQt Applications for Mobile, 736
Interactive Debugger
The Trace Library and the Interactive Debugger, 844
Interface to graphics library
Game Engine for 2D Games, 508
Internet Class
Stdlib Classes, 394
Introduction
Features, 25
History, 24
Introduction, 22
Motivation, 23
Performance Tips, 805
Ring and other languages, 24
Is Ring some sort of an improvement of PHP?
IsAlNum()
Data Type, 254
IsAlpha()
Data Type, 254
IsAndroid() Function
System Functions, 277
isattribute()
Reflection and Meta-programming, 346
iscfunction()
isclass()
Index 1961

IsCntrl()
Data Type, 254
IsDigit()
Data Type, 255
IsFreeBSD() Function
isfunction()
isglobal()
IsGraph()
Data Type, 255
isleapyear()
Stdlib Functions, 364
IsLinux() Function
IsList()
Data Type, 253
islocal()
IsLower()
Data Type, 255
IsMacOSX() Function
ismainsourcefile()
ismethod()
IsMSDOS() Function
IsNULL()
Data Type, 253
IsNumber()
Data Type, 252
isobject()
ispackage()
ispackagesclass()
isprime()
IsPrint()
Data Type, 255
isprivateattribute()
isprivatemethod()
IsPunct()
Data Type, 256
IsSpace()
Data Type, 256
isspecial()
IsString()
Data Type, 252
IsUnix() Function
IsUpper()
Data Type, 256
isvowel()
IsWindows() Function
IsWindows64() Function
IsXdigit()
Data Type, 256
JustFileName()
JustFilePath()
Keyboard Events and Colors
Using RingOpenGL and RingFreeGLUT for 3D
Graphics, 568
Keyboard Shortcuts
Form Designer, 750
KeyPress and Mouse Move Events
Language Design
Compact Syntax, 31
Define Declarative Languages, 34
Define Natural Statements, 32
Designed for a clear goal, 29
Encourage Organization, 31
Fast Enough For Many Applications, 38
Introduction, 28
No Global Interpreter (VM) Lock - No GIL, 37
Simple, 29
Smart Garbage Collector, 37
Transparent Implementation, 35
Trying to be natural, 30
Visual Implementation, 36
Why Ring?, 29
Language Functions
Reference, 920
Language Grammar
Reference, 923
Language Keywords
Reference, 919
Language Shell
Demo Programs, 285
lcm()
Left()
Index 1962

Strings, 242
Libraries in Ring
How to contribute?, 166
Library Usage
Objects Library for RingQt Application, 740
linecount()
Lines()
Strings, 243
List Class
Stdlib Classes, 375
List index start from 1
List of changes and new features
What is new in Ring 1.1?, 146
list of functions
Mathematical Functions, 260
list2file()
ListAllFiles() Function
Lists
Access List Items by String Index, 237
Add Items, 231
Copy Lists, 235
Create Lists, 231
Create Multi Dimension Array Using List and Re-
cursion, 238
Delete Item From List, 232
First-Class Lists, 236
Get List Item, 232
Get List Size, 232
Insert(), 235
Introduction, 230
Nested Lists, 235
Passing Lists to Functions, 236
Passing Parameters Arguments Using List Array,
238
Passing Parameters or Arguments Using List, 237
Reverse(), 234
Search, 233
Set List Item, 232
Sort(), 233
Swap Items, 239
Using Lists during definition, 236
Load Package
Program Structure, 229
Load Syntax Files
Loading the Trace library
locals()
Location
Create your first extension, 885
Logical Operators
Operators, 197
Loop Command
Control Structures - First Style, 204
Looping
Control Structures, 211
Control Structures - First Style, 201
Control Structures - Second Style, 208
Low Level Functions
callgc(), 822
Example - The Trace Library, 838
Example - Using the Trace Functions, 834
Introduction, 821
nullpointer(), 824
object2pointer(), 824
pointer2object(), 824
ptrcmp(), 825
ringvm_callfunc(), 834
RingVM_CallList(), 830
RingVM_CFunctionsList(), 826
RingVM_ClassesList(), 826
ringvm_evalinscope(), 833
RingVM_FilesList(), 831
RingVM_FunctionsList(), 826
ringvm_give() function, 842
ringvm_hideerrorMsg(), 833
RingVM_MemoryList(), 828
RingVM_PackagesList(), 827
ringvm_passerror(), 833
ringvm_scopescount(), 833
ringvm_see() function, 841
ringvm_settrace(), 832
ringvm_tracedata(), 832
ringvm_traceevent(), 832
ringvm_tracefunc(), 833
space(), 823
varptr(), 823
Main Function
Functions - First Style, 218
Functions - Second Style, 222
Functions - Third Style, 226
Main Menu
Demo Programs, 285
Make a Cube using RingOpenGL and RingFreeGLUT
Index 1963

Graphics, 605
makedir()
Many Cubes
Using RingOpenGL and RingAllegro for 3D Graph-
ics, 613
Map
Map Class
Map Events
map()
Math Class
Stdlib Classes, 380
Mathematical Functions
Decimals(), 263
Example, 260
Introduction, 259
list of functions, 260
Random(), 262
Unsigned(), 263
Using _ in numbers, 264
Using f after numbers, 264
matrixmulti()
matrixtrans()
MD5()
Security and Internet Functions, 310
Menu Events
Graphics, 581
Menubar and StyleSheet Example
Menubar Designer
Form Designer, 750
Merge binary characters
Strings, 246
mergemethods()
Methods to use Events with Events Filter
methods()
Misc Operators
Operators, 198
Module Organization
Extension, 853
More 3D Samples
Using RingOpenGL and RingAllegro for 3D Graph-
ics, 628
More Beatiful Code
Declarative Programming, 399
More Samples and Tests
Form Designer, 752
More Syntax Flexibility
Motivation
Introduction, 23
Mouse Events
RingLibSDL, 497
Graphics, 577
Movable Label Example
Moving Objects using the Mouse
Moving Text
Multi-language applications
Form Designer Translation, 754
Forms Translation, 755
Introduction, 752
Using String2Constant, 753
Multi-Line literals
Getting Started - First Style, 167
Getting Started - Second Style, 170
Getting Started - Third Style, 173
MurmurHash1 functions
RingMurmurHash Functions Reference, 1125
MySQL Class
Stdlib Classes, 391
MySQL Functions
Create Database, 299
Create Table and Insert Data, 300
Introduction, 297
MySQL_AutoCommit(), 305
MySQL_Close(), 299
MySQL_Columns(), 302
MySQL_Commit(), 305
MySQL_Connect(), 299
MySQL_Error(), 299
MySQL_Escape_String(), 304
MySQL_Info(), 298
MySQL_Init(), 299
MySQL_Inser_ID(), 301
MySQL_Next_Result(), 302
MySQL_Query(), 299
Index 1964

MySQL_Result(), 302
MySQL_Result2(), 303
MySQL_Rollback(), 305
Print Query Result, 302
Restore Image From The Database, 304
Save Image Inside the Database, 304
Transaction Example, 305
MySQL_AutoCommit()
MySQL Functions, 305
MySQL_Close()
MySQL_Columns()
MySQL_Columns() Implementation
Extension, 859
MySQL_Commit()
MySQL_Connect()
MySQL_Error()
MySQL_Escape_String()
MySQL_Info()
MySQL_Init()
MySQL_Inser_ID()
MySQL_Next_Result()
MySQL_Query()
MySQL_Result()
MySQL_Result2()
MySQL_Rollback()
Natural Language Programming
BraceError() Method, 408
BraceExprEval Method, 407
BraceStart and BraceEnd Methods, 406
Change the ’=’ operator to ’is’, 404
Change the Ring Keyword ’And’, 402
Change the Ring Operator ’+’, 403
Clean Natural Code, 409
Example, 401
History, 401
Introduction, 400
Real Natual Code, 407
Using Eval() with our Natural Code, 405
Natural Library - Demo Program
Using the Natural Library, 411
Nested Lists
Lists, 235
New Classes names - Index Start from 1
New Command: Load Package
New Functions
New Functions and Changes
New Style to Ring Notepad
New Tool: Folder2qrc
New Tool: Ring2EXE
newlist()
No Explicit End For Statements
No Global Interpreter (VM) Lock - No GIL
Language Design, 37
No Run
Command Line Options, 803
Not Case-Sensitive
Notepad Application
Notes to extensions creators
nullpointer()
Low Level Functions, 824
Number()
Data Type, 257
Numbers and Bytes
Files, 274
Object and Drawing
Object Library Source Code
Object Oriented Programming
Access Objects Using Braces, 318
Classes and Objects, 316
Composition, 319
Default value for object attributes, 330
Dynamic Attributes, 323
Find() and List of Objects, 325
Index 1965

Inheritance, 323
Introduction, 315
Operator Overloading, 321
Packages, 324
Printing Objects, 324
Private Attributes and Methods, 320
Setter and Getter, 320
Sort() and List of Objects, 326
Using Self.Attribute, 327
Using This in the class region as Self, 328
Using This.Attribute and This.Method(), 328
object2pointer()
objectid()
Objects inside lists
Declarative Programming, 395
Objects Library for RingQt
Objects Library for RingQt Application
Example, 740
Introduction, 739
Library Usage, 740
Object Library Source Code, 744
Open_WindowAndLink() Function, 743, 744
Open_WindowInPackages() Function, 744
ODBC Class
Stdlib Classes, 390
ODBC Functions
Execute Query and Print Result, 293
Introduction, 288
odbc_autocommit(), 295
odbc_close(), 290
odbc_colcount(), 292
odbc_columns(), 294
odbc_commit(), 295
odbc_connect(), 291
odbc_datasources(), 290
odbc_disconnect(), 292
odbc_drivers(), 289
odbc_execute(), 292
odbc_fetch(), 293
odbc_getdata(), 293
odbc_init(), 289
odbc_rollback(), 295
odbc_tables(), 293
Open and Close Connection, 292
Print List of ODBC Data Sources, 291
Print List of ODBC Drivers, 290
Save and Restore Images, 296
Transactions and Using Commit and Rollback, 295
odbc_autocommit()
ODBC Functions, 295
odbc_close()
ODBC Functions, 290
odbc_colcount()
ODBC Functions, 292
odbc_columns()
ODBC Functions, 294
odbc_commit()
ODBC Functions, 295
odbc_connect()
ODBC Functions, 291
odbc_datasources()
ODBC Functions, 290
odbc_disconnect()
ODBC Functions, 292
odbc_drivers()
ODBC Functions, 289
odbc_execute()
ODBC Functions, 292
odbc_fetch()
ODBC Functions, 293
odbc_getdata()
ODBC Functions, 293
odbc_init()
ODBC Functions, 289
odbc_rollback()
ODBC Functions, 295
odbc_tables()
ODBC Functions, 293
Open and Close Connection
ODBC Functions, 292
Open_WindowAndLink() Function
Objects Library for RingQt Application, 743, 744
Open_WindowInPackages() Function
Operator Overloading
Operators
Arithmetic Operators, 197
Assignment Operators, 198
Bitwise Operators, 198
Introduction, 196
Logical Operators, 197
Misc Operators, 198
Operators Precedence, 198
Relational Operators, 197
Using the Natural Library, 415
Operators Precedence
Operators, 198
Options
OSCopyFile() Function
OSCopyFolder() Function
OSCreateOpenFolder() Function
Index 1966

OSDeleteFile() Function
OSDeleteFolder() Function
OSRenameFile() Function
Other Widgets Events
packagename()
Packages
packages()
packagesclasses()
Page Class
palindrome()
Pass Error
Passing Lists to Functions
Lists, 236
Passing Parameters Arguments Using List Array
Lists, 238
Passing Parameters or Arguments Using List
Lists, 237
Performance
Performance Tips
Arithmetic Operations, 808
Calling Functions and Methods, 809
Creating Lists, 807
Introduction, 804, 805
Using len() and For Loops, 808
permutation()
Perror()
Files, 270
Philosophy behind data types in Ring
Play Sound
RingLibSDL, 498
Playing Sound
Graphics and Game Programming, 487
pointer2object()
Post Request
RingLibCurl, 472
Practical
Applications developed in little hours, 21
Prefix for Functions Names
Code Generator, 867
PrevFileName() Function
Print files in Zip file
RingZip, 476
Print List of ODBC Data Sources
ODBC Functions, 291
Print List of ODBC Drivers
ODBC Functions, 290
Print Query Result
print()
Print2Str() Function
Printing Final Intermediate Code
Printing Instruction Operation Code
Printing Intermediate Code
Printing Objects
Printing Rules
Printing Tokens
Printing using QPrinter
Private Attributes and Methods
prodlist()
Program Structure
Introduction, 228
Load Package, 229
Source Code File Sections, 229
Using Many Source Code Files, 229
Project Folder
Building Games For Android, 558
Project Layers
Protecting the Source Code
Distributing Ring Application, 811
ptrcmp()
Pure Functions
Functional Programming, 331
puts()
Index 1967

QAbstractButton Class
RingQt Classes Reference, 932
QAbstractItemView Class
QAbstractScrollArea Class
QAbstractSlider Class
QAbstractSocket Class
QAbstractSpinBox Class
QAction Class
QAllEvents Class
QApp Class
QAxBase Class
QAxObject Class
QBitmap Class
QBluetoothAddress Class
QBluetoothDeviceDiscoveryAgent Class
QBluetoothDeviceInfo Class
QBluetoothHostInfo Class
QBluetoothLocalDevice Class
QBoxLayout Class
QBrush Class
QBuffer Class
QButtonGroup Class
QByteArray Class
QCalendarWidget Class
QCamera Class
QCameraImageCapture Class
QCameraViewﬁnder Class
QCheckBox Class
QColor Class
QColorDialog Class
QComboBox Class
QCompleter Class
QCompleter2 Class
QCompleter3 Class
QCoreApplication Class
QCursor Class
QDate Class
QDateEdit Class
QDateTime Class
QDateTimeEdit Class
QDesktopServices Class
QDesktopWidget Class
QDial Class
QDialog Class
QDir Class
QDirModel Class
QDockWidget Class
QEvent Class
QFile Class
QFileDevice Class
QFileDialog Class
QFileInfo Class
QFileSystemModel Class
QFont Class
QFontDialog Class
Index 1968

QFontMetrics Class
QFrame Class
QFrame2 Class
QFrame3 Class
QGradient Class
QGraphicsVideoItem Class
QGridLayout Class
QGuiApplication Class
QHBoxLayout Class
QHeaderView Class
QHostAddress Class
QHostInfo Class
QIcon Class
QImage Class
QInputDialog Class
QIODevice Class
QJsonArray Class
QJsonDocument Class
QJsonObject Class
QJsonParseError Class
QJsonValue Class
QKeySequence Class
QLabel Class
QLayout Class
QLCDNumber Class
QLinearGradient Class
QLineEdit Class
QLineEdit Events and QMessageBox
QListView Class
QListWidget Class
QListWidgetItem Class
QMainWindow Class
QMatrix4x4 Class
QMdiArea Class
QMdiSubWindow Class
QMediaObject Class
QMediaPlayer Class
QMediaPlaylist Class
QMenu Class
QMenuBar Class
QMessageBox Class
QMessagebox Example
QMutex Class
QMutexLocker Class
QNetworkAccessManager Class
QNetworkProxy Class
QNetworkReply Class
QNetworkRequest Class
QObject Class
QOpenGLBuffer Class
QOpenGLContext Class
QOpenGLDebugLogger Class
QOpenGLFramebufferObject Class
QOpenGLFunctions Class
Index 1969

QOpenGLFunctions_3_2_Core Class
QOpenGLPaintDevice Class
QOpenGLShader Class
QOpenGLShaderProgram Class
QOpenGLTexture Class
QOpenGLTimerQuery Class
QOpenGLVersionProﬁle Class
QOpenGLVertexArrayObject Class
QOpenGLWidget Class
QPaintDevice Class
QPainter Class
QPainter2 Class
QPainterPath Class
QPen Class
QPicture Class
QPixmap Class
QPixmap2 Class
QPlainTextEdit Class
QPoint Class
QPointF Class
QPrinter Class
QProcess Class
QProgressBar Class
QPushButton Class
QQmlError Class
QQuaternion Class
QQuickWidget Class
QRadioButton Class
QRect Class
QRegion Class
QRegularExpression Class
QRegularExpressionMatch Class
QRegularExpressionMatchIterator Class
QScreen Class
QScrollArea Class
QScrollBar Class
QSerialPort Class
QSerialPortInfo Class
QSize Class
QSlider Class
QSpinBox Class
QSplashScreen Class
QSplitter Class
QSqlDatabase Class
QSqlDriver Class
QSqlDriverCreatorBase Class
QSqlError Class
QSqlField Class
QSqlIndex Class
QSqlQuery Class
QSqlRecord Class
QStackedWidget Class
QStandardPaths Class
QStatusBar Class
Index 1970

The Ring programming language version 1.8 book - Part 200 of 202

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The Ring programming language version 1.8 book - Part 200 of 202