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4.0 CETerm Script Events
This section describes the script events within the CETerm script engine. These
events provide ways to trigger event handlers when various conditions occur in
CETerm. The event handlers are arbitrary scripts.
The event model in CETerm uses specific event handler names to bind events to
handlers. If the event handler function (e.g., “OnBarcodeRead”) is defined in the
script engine, it will be executed when the event occurs. There is no special
command required to register or bind the function to the event. Event handlers
can be re-defined at any time. If the handler is no longer needed, the function
can be re-defined as empty.
Events play a very important role for scripting in CETerm. Just as in the standard
web browser, a script cannot run continuously, or it will prevent user interaction
and other program actions. The script engine acts like a “virtual user”. When a
script is executing, CETerm will seem unresponsive. Typically, a script will do a
little bit of work and then exit. This way, CETerm is always ready to respond to
the user or host actions. Events and timers are used to start or re-start a script to
do the next bit of work.
The “expect” script described in Section 2.6 is a good example of using a timer to
automate multiple steps. The events described in this section are the second
major technique for running a script to satisfy a condition.
Event
Fired when…
OnBarcodeRead
Barcode read.
OnDocumentDone
New web page loads.
OnIBMCommand
Receives special command in IBM data stream.
OnKeyboardStateChange
Keyboard state changes in TE session.
OnNavigateError
Web navigation fails.
OnNavigateRequest
Web navigation begins.
OnNetCheckFailed
Fails to complete network check to host.
OnProgramExit
CETerm exits.
OnProgramStart
CETerm first starts.
OnSerialPortEvent
Serial port status changes.
OnSessionConnect
Session connects to host.
OnSessionDisconnect
User disconnects session from host.
OnSessionDisconnected
Session disconnected by host.
OnSessionReceive
TE session receives data from host.
OnSessionSwitch
Active session changes.
OnStylusDown
Stylus tap on screen.
OnTriggerEvent
Hardware trigger status changes.
OnVTCommand
Receives special command in VT data stream.
OnWakeup
Device resumes after a suspend.
- 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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