Casio Naurtech CETerm Ver.5.5 Scripting Guide Bedienungsanleitung Seite 119
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NAURTECH WEB BROWSER AND TERMINAL EMULATION FOR WINDOWS CE AND WINDOWS MOBILE
CETerm Scripting Guide Page 119
JavaScript uses “garbage collection” to reclaim memory no longer in use.
Memory occupied by global variables may never be reclaimed, whereas local
variable memory can be reclaimed after a function call completes. Because the
JavaScript engine in CETerm is not reset frequently like a browser JavaScript
engine, it is more likely that poor programming practices could exhaust memory.
5.9.2 Encapsulate Code in Functions
Whenever possible, put multiple script actions within a function. This should
minimize compilations and make it easier to use local variables as described
above. For example, the following actions could be in a script which is bound to
a key-combination:
CETerm.SetProperty( "session1.scanner.upca.enabled", true );
CETerm.SetProperty( "session1.scanner.msi.enabled", false );
CETerm.SetProperty( "session1.scanner.pdf417.enabled", false );
CETerm.PlayTone( 8, 2000, 200 );
CETerm.PlayTone( 8, 1500, 200 );
CETerm.PostIDA( "IDA_SCAN_APPLYCONFIG", 0 );
Or, the actions could be in a function which is loaded with “Load at Startup”
function enableUPCA()
{
CETerm.SetProperty( "session1.scanner.upca.enabled", true );
CETerm.SetProperty( "session1.scanner.msi.enabled", false );
CETerm.SetProperty( "session1.scanner.pdf417.enabled", false );
CETerm.PlayTone( 8, 2000, 200 );
CETerm.PlayTone( 8, 1500, 200 );
CETerm.PostIDA( "IDA_SCAN_APPLYCONFIG", 0 );
{
and the function call, in a separate script, could be bound to the key-
combination:
enableUPCA();
Using the later approach, the function is only compiled once, not each time the
key is pressed. In general, separating the function definitions from the invocation
is a good practice.
- Naurtech Web Browser 1
- Terminal Emulation Clients 1
- Copyright Notice 2
- Trademarks 2
- Software Version 2
- Table of Contents 3
- Preface 7
- Assumptions 7
- Additional Documentation 8
- Online Knowledgebase 8
- 1.0 Introduction 9
- 1.1 FEATURE HIGHLIGHTS 10
- 2.0 Getting Started 12
- General Settings 13
- Editing Scripts 13
- 2.4 IDA ACTION CODES 16
- 2.6 AUTOMATED LOGIN 19
- 2.7 CUSTOM SCREEN HOT-SPOTS 21
- 2.8.1 Array Literals 23
- 2.8.2 Object Literals 23
- 2.8.3 Complex Literals 23
- 3.1 THE CETERM OBJECT 25
- Methods 25
- SendText ( text, session ) 28
- Properties 30
- 3.2 THE DEVICE OBJECT 30
- ResetIdleTimer ( ) 31
- THE OS OBJECT 33
- PlaySound ( sound, flags ) 34
- Sleep ( delay ) 35
- MemoryStatus 36
- TickCount 36
- THE BROWSER OBJECT 37
- 3.5 THE EVENT OBJECT 38
- 3.6 THE FILE OBJECT 43
- 3.7 THE FTP OBJECT 46
- 3.8 THE GPS OBJECT 50
- 3.9 THE KEYBOARD OBJECT 55
- 3.10 THE MESSAGE OBJECT 60
- 3.11 THE NETWORK OBJECT 61
- 3.12 THE PROCESS OBJECT 63
- 3.13 THE REGISTRY OBJECT 65
- 3.14 THE SCREEN OBJECT 67
- 3.15 THE SERIALPORT OBJECT 69
- Property 74
- 3.16 THE SESSION OBJECT 75
- 3.18 THE WINDOW OBJECT 77
- 4.0 CETerm Script Events 82
- 4.1 THE ONBARCODEREAD EVENT 83
- 4.2 THE ONDOCUMENTDONE EVENT 84
- 4.3 THE ONIBMCOMMAND EVENT 85
- THE ONNAVIGATEERROR EVENT 87
- 4.8 THE ONPROGRAMEXIT EVENT 91
- 4.9 THE ONPROGRAMSTART EVENT 91
- THE ONSERIALPORTEVENT EVENT 92
- 4.16 THE ONSTYLUSDOWN EVENT 96
- 4.18 THE ONVTCOMMAND EVENT 98
- 4.19 THE ONWAKEUP EVENT 99
- Example 100
- 5.1.1 Expect Script 102
- 5.1.2 ExpectMonitor Class 103
- RUNNING AN EXTERNAL PROGRAM 109
- USING TIMERS TO RUN SCRIPTS 109
- 5.6 ACCESSING A FILE 110
- 5.7 ACCESSING THE REGISTRY 111
- 5.8.1 SerialPort Objects 112
- 5.8.2 Setting the PortName 113
- 5.9.1 Use Local Variables 118
- 5.9.3 Limit Execution Time 120
- 5.10 DEBUGGING SCRIPTS 120
- 5.10.1 Show Script Errors 120
- 5.10.2 OS.Alert() 121
- Symbolic Name 122
- Friendly Name 122
- Description 122
- Printable ASCII 122
- Internal Actions (TE only) 123
- Program Actions 124
- General IBM and VT Actions 126
- 5250 Specific Actions 127
- VT Actions 127
- Custom VT Sequences 128
- Windows App Keys 129
- HTML Actions 130
- Special Actions 130
- Appendix 2 - Properties 131
- SESSION PROPERTIES 132
- SCANNER PROPERTIES 133
- COMMON SYMBOLOGY PROPERTIES 134
- CODABAR SYMBOLOGY PROPERTIES 135
- CODE39 SYMBOLOGY PROPERTIES 136
- Last Property Level 137
- SYMBOLOGY NAMES 139
- Symbology Name 140
- LabelType 141
- Character 141
- Hexadecimal 141
- Symbology 141
- Appendix 4 - Constants 143
- BROWSER ERROR CONSTANTS 144
- FILE ATTRIBUTE CONSTANTS 145
- IBM STATUS CONSTANTS 145
- KEYBOARD CONSTANTS 146
- MESSAGEBOX CONSTANTS 147
- PLAYSOUND CONSTANTS 147
- REGISTRY CONSTANTS 148
- SERVICE STATE CONSTANTS 148
- SERIAL PORT CONSTANTS 149
- WINDOW CONSTANTS 151
- Glossary 158
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