JPEG Quality Factor – preset 1 .................................................................. 74
Window Dimensions – preset 1................................................................... 74
Brightness – preset 1 .................................................................................. 75
Contrast – preset 1 ..................................................................................... 75
Zoom – preset 1.......................................................................................... 76
Color Depth – preset 1................................................................................ 77
Image Preset 2............................................................................................ 78
Image Format – preset 2............................................................................. 78
Resolution – preset 2 .................................................................................. 78
JPEG Quality Factor – preset 2 .................................................................. 78
Window Dimensions – preset 2................................................................... 79
Brightness – preset 2 .................................................................................. 80
Contrast – preset 2 ..................................................................................... 80
Zoom – preset 2.......................................................................................... 81
Color Depth – preset 2................................................................................ 82
Image Preset 3............................................................................................ 83
Image Format – preset 3............................................................................. 83
Resolution – preset 3 .................................................................................. 83
JPEG Quality Factor – preset 3 .................................................................. 83
Window Dimensions – preset 3................................................................... 84
Brightness – preset 3 .................................................................................. 85
Contrast – preset 3 ..................................................................................... 85
Zoom – preset 3.......................................................................................... 86
Color Depth – preset 3................................................................................ 87
Image Preset 4............................................................................................ 88
Image Format – preset 4............................................................................. 88
Resolution – preset 4 .................................................................................. 88
JPEG Quality Factor – preset 4 .................................................................. 88
Window Dimensions – preset 4................................................................... 89
Brightness – preset 4 .................................................................................. 90
Contrast – preset 4 ..................................................................................... 90
Zoom – preset 4.......................................................................................... 91
Color Depth – preset 4................................................................................ 92
4.3 Advanced Data Format ............................................................................... 93
4.3.1 Format Definition......................................................................................... 94
Method 1 - Extracting Information from Barcode......................................... 95
Method 2 - Manipulating the Barcode Data............................................... 100
4.3.2 Match Conditions ...................................................................................... 111
4.3.3 Format Enable/Disable ............................................................................. 113
4.3.4 Mismatch Result ....................................................................................... 114
5 REFERENCES ......................................................................................... 115
5.1 RS232 – USB COM .................................................................................. 115
5.1.1 ACK/NACK Protocol ................................................................................. 115
5.1.2 RX Timeout ............................................................................................... 115
5.2 USB Keyboard .......................................................................................... 116
vii