The ASCII Character Set in VS .NET

Making QR Code ISO/IEC18004 in VS .NET The ASCII Character Set

Appendix A
QR Code ISO/IEC18004 Recognizer In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET applications.
Drawing Quick Response Code In Visual Studio .NET
Using Barcode generation for .NET Control to generate, create Quick Response Code image in VS .NET applications.
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QR Decoder In .NET
Using Barcode decoder for .NET Control to read, scan read, scan image in .NET framework applications.
Bar Code Generator In VS .NET
Using Barcode drawer for .NET framework Control to generate, create barcode image in .NET framework applications.
The ASCII Character Set
Reading Barcode In .NET Framework
Using Barcode scanner for .NET Control to read, scan read, scan image in .NET applications.
Draw QR In C#
Using Barcode printer for Visual Studio .NET Control to generate, create QR Code image in .NET applications.
The first 128 characters are the most commonly used. They are tabulated below. ASCII Value Character
Making Quick Response Code In .NET
Using Barcode encoder for ASP.NET Control to generate, create QR Code ISO/IEC18004 image in ASP.NET applications.
Drawing QR In Visual Basic .NET
Using Barcode encoder for VS .NET Control to generate, create QR Code image in VS .NET applications.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US
1D Barcode Generation In Visual Studio .NET
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Encoding Code 3/9 In .NET
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ASCII Value Character
Generating Code 128A In .NET
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Generating Code11 In Visual Studio .NET
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32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Generating GTIN - 13 In Objective-C
Using Barcode generator for iPhone Control to generate, create GS1 - 13 image in iPhone applications.
Code-128 Creation In .NET Framework
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ASCII Value Character
ECC200 Encoder In Objective-C
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Bar Code Decoder In Java
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64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _
Drawing ANSI/AIM Code 128 In None
Using Barcode generation for Font Control to generate, create ANSI/AIM Code 128 image in Font applications.
Printing EAN-13 Supplement 5 In VS .NET
Using Barcode creation for ASP.NET Control to generate, create EAN-13 Supplement 5 image in ASP.NET applications.
ASCII Value Character
Encoding Barcode In Visual Studio .NET
Using Barcode creator for ASP.NET Control to generate, create barcode image in ASP.NET applications.
Code 39 Extended Maker In Objective-C
Using Barcode creator for iPhone Control to generate, create Code-39 image in iPhone applications.
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 ` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ DEL
(space)
! " # $ % & ' ( ) * + , . / 0 1 2 3 4 5 6 7 8 9 : ; < = >
Note: The first 32 characters and the last character are control characters. Usually, they are not printed.
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Appendix B
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Incompatibilities with Visual Basic.NET
Like all commercial software products, Visual Basic is revised periodically to include new features, and occasionally to modify existing features that users have found problematic. Normally, these revisions have minimal effect on the underlying fundamentals of the language. Hence, introductory textbooks describing Visual Basic fundamentals usually remain valid over several years, spanning multiple revisions with minimal disruption. As this book is about to go to press, however, Microsoft has published a preliminary set of specifications describing its next release of Visual Basic, which will be know as Visual Basic.NET. Microsoft intends to introduce significant changes in this forthcoming release, in order to provide greater compatibility between Visual Basic and other programming languages in Microsoft s Visual Studio suite. Many of these changes involve advanced features within Visual Basic and will therefore have little or no impact on the material discussed in this book. However, certain of the proposed new features are incompatible with the long-standing Visual Basic fundamentals presented in this book. The more significant incompatibilities, based upon Microsoft s preliminary specifications, are briefly summarized below. 1. 2. 3. 4. 5. The Visual Basic environment has a different appearance in Visual Basic.NET. Some control properties are changed and some new properties added in Visual Basic.NET. The location and appearance of the menu editor is changed in Visual Basic.NET. The Variant data type is replaced by the Object data type in Visual Basic.NET. Integer constants are redefined as follows. (a) Ordinary integer constants (two bytes) are referred to as short integers in Visual Basic.NET. (b) Long integer constants (four bytes) are referred to simply as integers in Visual Basic.NET. (c) Visual Basic.NET also supports eight-byte integers, referred to as long integers. 6. Visual Basic.NET strongly encourages the use of named constants rather than numerical values or variables with assigned values. Arrays must be defined differently in Visual Basic.NET, as indicated below. (a) All arrays must have a lower bound of zero. Thus, the Dim statement
Dim x(10) As Integer
defines a 10-element integer array whose subscript values run from 0 to 9. (b) The ReDim statement can be used only with variables that are explicitly declared as arrays. The array declaration must precede the ReDim statement. (c) Option Base 1 is not supported in Visual Basic.NET. Moreover, the use of Option Base 0 is unnecessary and is strongly discouraged.
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