Argox PA-20 Basic Programming Manual Manuale Utente Pagina 38
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PT-Basic Programming Manual Ver. 1.00 37/143
LOCK
Purpose：
To hold all the activated event triggers until they are released
by UNLOCK.
Syntax：
LOCK
Example：
ON KEY(1) GOSUB F1
ON KEY(2) GOSUB F2
…
F1:
LOCK
PRINT "press F1"
UNLOCK
RETURN
F2:
PRINT "press F2"
RETURN
In this example, the BASIC program can trap the KEY(1)
and KEY(2) events and reroute to the subroutines F1 and F2
respectively. In F1, the command LOCK disable all the
activated event triggers so that the subroutine F1 will not be
interrupted by a new upcoming KEY(1) and KEY(2) event.
On the other hand, since LOCK is not called in F2, any new
coming KEY(1) and KEY(2) event will interrupt the ongoing
F2, and therefore, may affect the expected results.
Description：
This command can prevent nesting of event triggers. All the
activated event triggers will be disabled until UNLOCK is
called.
- PA-20/PA-2010 1
- PA-21/PA-2110 Basic 1
- Programming Manual 1
- Preface 2
- Table of Contents 3
- 3/143 4
- 4/143 5
- 1 How to run BASIC program 6
- 6/143 7
- Information 8
- 2 Program Structure 9
- Array Variables 10
- Assignment Operator 11
- Arithmetic Operator 11
- Relational Operator 11
- Logical Operator 11
- 2.4 Operator Precedence 12
- 2.5 Labels 12
- 2.6 Subroutines 13
- 2.7 Exit program 14
- 2.8 Special notes 14
- 3 Command Sets 15
- 15/143 16
- SET_PRECISION 17
- 17/143 18
- 18/143 19
- ON … GOSUB … 20
- ON … GOTO … 21
- FOR … NEXT 22
- WHILE … WEND 23
- 23/143 24
- 24/143 25
- TRIM_LEFT$ 26
- TRIM_RIGHT$ 26
- 26/143 27
- 27/143 28
- STRING$ 29
- OFF ALL 30
- OFF ESC 30
- OFF COM 30
- OFF HOUR 31
- OFF KEY 31
- OFF MINUTE 32
- OFF READER 32
- OFF TIMER 33
- ON COM GOSUB 33
- ON ESC GOSUB 34
- ON HOUR GOSUB 34
- ON KEY GOSUB 35
- ON MINUTE GOSUB 35
- ON READER GOSUB 36
- ON TIMER GOSUB 37
- 37/143 38
- 38/143 39
- 3.6 System commands 40
- 40/143 41
- POWER_ON 42
- RESTART 42
- SYSTEM_INFORMATION 42
- SYS_SUSPEND 43
- CHECK_AID 43
- 3.7 Reader commands 44
- SLEEP_READER 45
- GET_READER_DATA$ 45
- GET_READER_DATALEN 46
- READER_CONFIG_START 46
- READER_CONFIG_END 46
- READER_SENDCMD 47
- READER_SENDCMD_LASER 47
- READER_QUERY$ 48
- READER_QUERY_LASER$ 48
- 48/143 49
- SIM_SCANKEY_PRESS 50
- READER_SETFROMFILE 50
- 3.8 Beeper commands 51
- SET_BUZZER_VOL 52
- DAY_OF_WEEK 53
- 53/143 54
- 3.10 LED Command 55
- 3.11 Keypad commands 56
- INPUT_S 57
- INPUT_S_ CARRYENT 58
- INPUT_S_VIBRATE 58
- INPUT_S_SLEEP 59
- INPUT_MODE 59
- KEY_CLICK 59
- ALPHA_LOCK 60
- GET_ALPHA_LOCK 60
- GET_KEY_CLICK 60
- KEYPAD_BL_TIMER 61
- KEYPAD_BL 61
- DEF_PKEY 62
- SCANKEYPWON 63
- GET_SCANKEYPWON 63
- 3.12 LCD Commands 64
- CURSOR_Y 65
- FILL_RECT 65
- ICON_ZONE_PRINT 66
- CLR_RECT 66
- SHOW_IMAGE 67
- CLR_EOL 67
- 3.13 Font 68
- DISPFONT_INFO_WIDTH 69
- 3.14 TextBlock 70
- 3.14.1 TextBlock commands 71
- DEFINETEXTBLOCK_COLOR 71
- DEFINETEXTBLOCK_IMAGE 72
- SETTEXTBLOCK 73
- RESETTEXTBLOCK 73
- PRINTTEXTBLOCK 73
- GETTEXTBLOCKCUR_X 73
- GETTEXTBLOCKCUR_Y 74
- SETTEXTBLOCKCUR 74
- SHOWTEXTBLOCKCURSOR 74
- TEXTBLOCK_SETBGCOLOR 74
- TEXTBLOCK_SETBGIMAGE 75
- TEXTBLOCK_MODE 75
- SWITCHTEXTBLOCK 75
- Standard Commands 76
- OPENOUT 77
- 77/143 78
- BGETEXT 79
- 79/143 80
- 80/143 81
- GET_FILE_ERROR 82
- DBMS Commands 83
- DBMS_INIT_SEARCH 83
- DBMS_INIT_SEARCHADV 84
- DBMS_CLOSE_SEARCH 85
- DBMS_APPEND_DATA 85
- DBMS_DEL_DATA 86
- DBMS_EMPTY 86
- DBMS_FIND_RECORD 86
- DBMS_FIND_RECORD_B 86
- DBMS_GET_COUNT 87
- DBMS_GET_DATA$ 87
- DBMS_UPDATE_DATA 87
- 3.16 Vibrator commands 88
- CLOSE_COM 89
- OPEN_COM 89
- SET_COM 89
- READ_COM$ 90
- WRITE_COM 91
- GET_CTS 91
- SET_RTS 92
- CLEAR_COM 92
- COM_DELIMITER 92
- FILE_TRANS 93
- FILE_TRANS_REALTIME 93
- FILE_TRANS_BAUD 94
- FILE_TRANS_INTERFACE 94
- 3.18 Memory commands 95
- BT_START 96
- BT_STOP 96
- BT_OPEN 97
- BT_CLOSE 97
- BT_WRITE 97
- 97/143 98
- BT_READ$ 99
- BT_GETLOCALINFO$ 99
- 99/143 100
- BT_SETLOCALSET 101
- BT_INQUIRY 101
- BT_GETDEVICEINFO 102
- BT_DISCONNECTALERT 102
- GET_BT_ERROR 103
- 3.20 USB commands 104
- COPYFILETOPDT 105
- BACKUPDATAFILETOPC 105
- SIM_SETSCANNERTYPE 105
- 4 Appendices 106
- 106/143 107
- 107/143 108
- Commands for event trapping 109
- System commands 109
- Reader commands 110
- Buzzer commands 110
- Calendar and timer commands 110
- LED command 111
- Keypad commands 111
- LCD Commands 112
- User font commands 112
- TextBlock commands 113
- File manipulation commands 114
- Vibrator commands 115
- Communication port commands 115
- Memory commands 115
- Bluetooth commands 116
- USB commands 116
- Appendix B 117
- 117/143 118
- 118/143 119
- 119/143 120
- 120/143 121
- 121/143 122
- 122/143 123
- 123/143 124
- 124/143 125
- 125/143 126
- 126/143 127
- 127/143 128
- 128/143 129
- 129/143 130
- 130/143 131
- 131/143 132
- Appendix C 133
- 133/143 134
- 134/143 135
- 135/143 136
- 136/143 137
- 137/143 138
- 138/143 139
- 139/143 140
- Note1: 141
- 141/143 142
- Appendix D 143
- Parameter for Color 143
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