Topcon OPUS A6G2 - Page 531

531
OPUS Projektor Manual
JavaScript
print("Failed to set the display backlight intensity to 50%
:(");
}
getVariableValid - retrieve information if a project variable has a valid value
With this function you can check if a variable has a valid value. Returns true if the variable has
a valid value. Returns false if the variable doesn't have a defined value. Returns "undefined" if
the variable doesn't exist or if the function was not called with one parameter only.
Prototype:
var result = getVariableValid(string nameOfVariable);
The returned value of that function contains the information about the variable.
Examples:
var result = getVariableValid("Speed");
if (result === true)
print("The variable has a valid value.");
else if (result === false)
print("The variable does NOT have a valid value.");
else
print("The variable does not exist or the function was
called inappropriately.");
getProperty - retrieve a property value of a DDO
All graphical objects (DDO => Display Data Object) in a project have a lot of properties. In
some cases these properties can be of interest during runtime in a JavaScript. To retrieve the
value of such a property the function getProperty can be used.
Prototype:
var value = getProperty(number DDO-ID, string propertyName);
The return value of the getProperty function will be either the value of the property or
undefined if something did not work. Since the properties of a DDO consist of various data
types, the returned property value can also be a different data type depending on the property.
Here is a list of all the properties that can be read and/or changed through JavaScript.
Javascript
propertyName
Data type
Ge
t
Set
Object type(s)
Remarks
Absolute Max Value
Integer
x
x
Numeric Fields
Bargraphs
Meter object
Absolute Min Value
Integer
x
x
Numeric Fields
Bargraphs
Meter object
Add To Page
History
Boolean
x
x
Pages
Pages where this is set to false
will not be added to the
browsing history (they will not be
accessable by pressing the
escape key)
Alarm Number
Integer
x
Alarm objects