VBScript Reference Manual for InduSoft Web Studio

InduSoft Web Studio VBScript Reference Manual
Notwithstanding these restrictions, VBScript code within the
ActiveX Event interface still has access to all Global
Procedures, as well as any procedures in the Screen Script
for the same Screen where the ActiveX object is configured.
VBScript code within the ActiveX Event interface is executed whenever one or more of the selected
Event conditions (listed in the Configuration dialog box) occur for the selected ActiveX object. The
execution of the script on the Server executes independently from the execution on Web Thin Clients.
Key Notes:
• Before executing the application, be sure to save (or close) the Screen
after any VBScript is entered. Otherwise it might not be updated. This is
true for all VBScript interfaces.
Background Task Startup Script
In the Tasks Worksheet folder is the Script subfolder which
will contain a default Startup Script icon and any
Background Task Script Groups declared. To edit the
Background Task Startup Script:
1. Click on the Tasks Worksheet folder
2. Click on the Script subfolder.
Any VBScript code placed in this interface will execute when
the Background Task module is started, which occurs when
the IWS application is started. This code will only execute
once, and is meant for initialization purposes.
Variables and Procedures declared in the Background Task
Startup Script are available to the Background Task Script Group, but are not available to any VBScript
interfaces in the Graphic Module. Remember that the Background Task Group Startup Script can
access the procedures declared in Global Procedures.
Since the Background Task Startup Script has no interaction with a Graphics script, the only Server
display I/O functions that can be implemented are MsgBox and InputBox functions.
Since the Background Task Startup Script runs on the IWS Server, there is no effect with Web Thin
Clients.
Background Task Script Groups
The Background Task Script Groups consist of one or more VBScript interface groups that run in the
Background Task. By default, there are no Background Task Script Groups unless added by the
developer. These Script Groups will execute in a background as long as their Execution Field is in a
TRUE state.
Background Task Script Groups have the following limitations:
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