Difference between revisions of "Extensions.HMI.IsScreenClosedEvent"
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== OTL Syntax == | == OTL Syntax == | ||
<syntaxhighlight lang="java" enclose="div" style="font-size: medium;"> | <syntaxhighlight lang="java" enclose="div" style="font-size: medium;"> | ||
| − | BooleanTerm | + | BooleanTerm HMI.IsScreenClosedEvent(EventValue event, ScreenVariable screen); |
</syntaxhighlight> | </syntaxhighlight> | ||
== Description == | == Description == | ||
| − | The '''IsScreenClosedEvent''' term accepts an '''EventValue''' term yielding an '''Event''' object that has been raised by the OTX runtime, as a result of declaring a '''Screen''' object as an event source by using the term [[Extensions.HMI.ScreenClosedEventSource|'''ScreenClosedEventSource''']]. The term | + | The '''IsScreenClosedEvent''' term accepts an '''EventValue''' term yielding an '''Event''' object that has been raised by the OTX runtime, as a result of declaring a '''Screen''' object as an event source by using the term [[Extensions.HMI.ScreenClosedEventSource|'''ScreenClosedEventSource''']]. The term will return '''TRUE''' if and only if the '''Event''' originates from a [[Extensions.HMI.ScreenClosedEventSource|'''ScreenClosedEventSource''']] term. In case an optional '''ScreenVariable''' is specified, the term will return '''TRUE''' if and only if the '''Event''' was fired because that particular '''Screen''' was closed. |
{{TermReturnValue| [[Core.DataTypes.SimpleDataType.Boolean|Boolean]] | This value is TRUE if the event of a [[Extensions.HMI.ScreenClosedEventSource|ScreenClosedEventSource]] term comes.}} | {{TermReturnValue| [[Core.DataTypes.SimpleDataType.Boolean|Boolean]] | This value is TRUE if the event of a [[Extensions.HMI.ScreenClosedEventSource|ScreenClosedEventSource]] term comes.}} | ||
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{| {{TableHeader}} | {| {{TableHeader}} | ||
{{TableRowPropertiesHeader}} | {{TableRowPropertiesHeader}} | ||
| − | {{TableRowPropertie1| Event | [[Extensions.EventHandling.Event|Event]] | [[Value]] | - | [1] | Represents the Event whose type | + | {{TableRowPropertie1| Event | [[Extensions.EventHandling.Event|Event]] | [[Value]] | - | [1] | Represents the Event whose type will be tested.}} |
{{TableRowPropertie2| Screen | [[Extensions.HMI.Screen|Screen]] | [[Variable]] | - | [0..1] | Optionally specifies the particular Screen which fired the event.}} | {{TableRowPropertie2| Screen | [[Extensions.HMI.Screen|Screen]] | [[Variable]] | - | [0..1] | Optionally specifies the particular Screen which fired the event.}} | ||
|} | |} | ||
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== OTL Examples == | == OTL Examples == | ||
<syntaxhighlight lang="java" enclose="div" style="font-size: medium;"> | <syntaxhighlight lang="java" enclose="div" style="font-size: medium;"> | ||
| + | /// Signatures | ||
| + | |||
package HMI.ScreenSignature ScreenSignature1(ref Integer ScreenInOutParameter1); | package HMI.ScreenSignature ScreenSignature1(ref Integer ScreenInOutParameter1); | ||
Latest revision as of 02:36, 13 September 2019
Contents
Classification
| Name | IsScreenClosedEvent |
| Short Description | Checks whether the event of a ScreenClosedEventSource term comes |
| Class | Term |
| Extension | OTX HMI extension |
| Group | HMI related terms |
| Exceptions | - |
| Checker Rules | - |
| Standard Compliant | Yes |
OTL Syntax
BooleanTerm HMI.IsScreenClosedEvent(EventValue event, ScreenVariable screen);Description
The IsScreenClosedEvent term accepts an EventValue term yielding an Event object that has been raised by the OTX runtime, as a result of declaring a Screen object as an event source by using the term ScreenClosedEventSource. The term will return TRUE if and only if the Event originates from a ScreenClosedEventSource term. In case an optional ScreenVariable is specified, the term will return TRUE if and only if the Event was fired because that particular Screen was closed.
Return Value
The Term returns the value, see table below.
In OTX, Terms are categorized according to its return data type!
| Data Type | Description |
| Boolean | This value is TRUE if the event of a ScreenClosedEventSource term comes. |
Properties
| Name | Data Type | Class | Default | Cardinality | Description |
| Event | Event | Value | - | [1] | Represents the Event whose type will be tested. |
| Screen | Screen | Variable | - | [0..1] | Optionally specifies the particular Screen which fired the event. |
OTL Examples
/// Signatures
package HMI.ScreenSignature ScreenSignature1(ref Integer ScreenInOutParameter1);
/// Global Declarations
public procedure main()
{
/// Local Declarations
HMI.Screen ScreenHandle1;
Integer Integer1;
EventHandling.EventSource EventSource1;
Boolean Boolean1 = false;
EventHandling.Event Event1;
/// Flow
HMI.OpenScreen(ScreenHandle1, ScreenSignature1, {ScreenInOutParameter1 = Integer1}, false);
EventSource1 = HMI.ScreenClosedEventSource(ScreenHandle1);
HMI.CloseScreen(ScreenHandle1);
EventHandling.WaitForEvent({EventSource1}, Event1);
Boolean1 = HMI.IsScreenClosedEvent(Event1, ScreenHandle1);
}