HP Embedded Capture Device License 1-100 E-LTU Instrukcja Użytkownika Pobierz pdf (Strona 28)

NOTE: The text “myPasswordID” is used here as an example. Any meaningful text of your

choosing may be used.

2. Use the macros at the password field at design time.

●

Scan options: The password field can display on the Scan options screen. To do this, the Scan options

screen must be activated on the Scan screen. In this case, the user will be prompted for the password

while editing the Scan options. A default password can be set up, or it can be readonly / readwrite

according to the scanoptions screen flexibility. Since it is a password field, the content will not display

on the UI.

1.4.7 Conditions, evaluation, & navigation

1.4.7.1 Conditional expression syntax

The following reserved characters may be used to prepare your condition formulas. The main objective is

that any formula returns a Boolean value (true / false) after evaluating the expression.

When the evaluation return is “TRUE” the node will be visible for navigation at workflow level.

If an expression evaluation does not return a Boolean value, it will be considered a “FALSE” return value, and

consequently the following nodes will not take part on the graph workflow.

The use of macros is allowed on any expression. Expressions can be called inside other expressions.

Table 1-8 Conditional expression syntax

Comparison Math String Wildcards (used in

LIKE)

Functions Escape characters

< + (addition) + (concatenate) * CONVERT []

> - (subtraction) LEN

<= * (product) ISNULL

=> / (division) IIF

= % (module) TRIM

IN SUBSTRING

Operators

Concatenation is allowed using Boolean AND, OR, and NOT operators. You can use parentheses to group

clauses and force precedence. The AND operator has precedence over other operators. For example:

(LastName = 'Smith' OR LastName = 'Jones') AND FirstName = 'John'

String operators

To concatenate a string, use the + character. String comparisons are case-sensitive.

Wildcard characters

Both the * and % can be used interchangeably for wildcard characters in a LIKE comparison. If the string in a

LIKE clause contains a * or %, those characters should be enclosed in brackets ([]). If a bracket is in the clause,

each bracket character should be enclosed in brackets (for example [[] or []]). A wildcard is allowed at the

start and end of a pattern, or at the end of a pattern, or at the start of a pattern. For example:

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HP Embedded Capture Device License 1-100 E-LTU Instrukcja Użytkownika Strona 28