VBScript Reference Manual for InduSoft Web Studio

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VBScript Reference Manual InduSoft Web Studio TextStream Object The VBScript TextStream object facilitates sequential access to a file TextStream Object Methods Properties Description Close Closes an open stream. Read Reads a specified number of characters from a stream. ReadAll Reads an entire stream. ReadLine Reads an entire line from a stream. Skip Skips a specified number of characters when reading a stream. SkipLine Skips the next line when reading a stream. Write Writes a specified string to a stream. WriteBlankLines Writes a specified number of newline characters to a stream. WriteLine Writes a specified string and newline character to a stream. TextStream Object Properties Properties Description AtEndOfLine True if the file pointer is before the end-of-line marker. AtEndOfStream True if the file pointer is at the end of the stream Column The column number of the current character in the stream. Line The current line number of the stream. VBScript TextStream Object Description: The VBScript TextStream object Usage: oTextStream.{property | method} Return: Depends on Property or Method used Remarks Example: In the following code, a is the TextStream object returned by the CreateTextFile method on the FileSystemObject: Set fs = CreateObject("Scripting.FileSystemObject") Set a = fs.CreateTextFile("c:\testfile.txt", True) a.WriteLine("This is a test.") a.close 38 InduSoft, Ltd.
InduSoft Web Studio VBScript Reference Manual COM Objects and Collections In addition to user-defined Class Objects and VBScript Objects and Collections, there are many different COM Objects (and Object Collections) and other system objects based on COM technology that are accessible from VBScript. These Objects include: • ActiveX Controls inserted on an IWS Screen (via Insert OCX tool) • ActiveX Controls instantiated via VBScript • ADODB and ADOX Objects and Collections • Microsoft Office OLE Automation (Word, Excel, Access, Outlook & Components) • WMI • WSH • WSDL • XMLDOM ActiveX Controls Inserted On An IWS Screen InduSoft Web Studio (IWS) serves as an ActiveX control container, which is a parent program that supplies the environment for an ActiveX control to run. Through the IWS development interface (insert OCX tool), one or more ActiveX controls can be added to a screen. The OCX (ActiveX Control) must first be registered, if it was not already done so as part of the installation of the ActiveX control. IWS provides a Register Controls tool (under Tools on the toolbar) to allow registration of ActiveX controls, and to verify if a control has already been registered. After the OCX is inserted on the screen, IWS will assign the control a name. This name can be changed in the Object Properties dialog box, accessed by double clicking on the control in the IWS development environment, but the name of the control must be unique from any other control used by the current IWS application. In the Object Properties dialog box, the Configuration button will provide access to the Properties, Methods and Events accessible for this ActiveX control. In the Configuration dialog box, there is a tab for Events, which allow for the execution of a VBScript code segment if an Event is triggered for the ActiveX control. In the Properties and Methods tabs, parameters, triggers, IWS tags, etc. can be tied to the various Properties and Methods. Microsoft Slider Control 6.0 Configure the Control’s Properties, Methods & Events Select to input VBScript code segments for the ActiveX Control Events InduSoft, Ltd. 39
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VBScript Reference Manual for InduSoft Web Studio

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