VBScript Reference Manual for InduSoft Web Studio - ICP DAS

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VBScript Reference ManualInduSoft Web StudioTextStream ObjectThe VBScript TextStream object facilitates sequential access to a fileTextStream Object MethodsProperties DescriptionCloseCloses an open stream.ReadReads a specified number of characters from a stream.ReadAllReads an entire stream.ReadLine Reads an entire line from a stream.SkipSkips a specified number of characters when reading a stream.SkipLine Skips the next line when reading a stream.WriteWrites 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 PropertiesProperties DescriptionAtEndOfLine True if the file pointer is before the end-of-line marker.AtEndOfStream True if the file pointer is at the end of the streamColumn The column number of the current character in the stream.LineThe current line number of the stream.VBScript TextStream ObjectDescription: The VBScript TextStream objectUsage: oTextStream.{property | method}Return: Depends on Property or Method usedRemarksExample: In the following code, a is the TextStream object returned by the CreateTextFile method on theFileSystemObject:Set fs = CreateObject("Scripting.FileSystemObject")Set a = fs.CreateTextFile("c:\testfile.txt", True)a.WriteLine("This is a test.")a.close38 InduSoft, Ltd.
InduSoft Web StudioVBScript Reference ManualCOM Objects and CollectionsIn addition to user-defined Class Objects and VBScript Objects and Collections, there are manydifferent COM Objects (and Object Collections) and other system objects based on COM technologythat 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• XMLDOMActiveX Controls Inserted On An IWS ScreenInduSoft Web Studio (IWS) serves as an ActiveX control container, which is a parent program thatsupplies the environment for an ActiveX control to run. Through the IWS development interface (insertOCX tool), one or more ActiveX controls can be added to a screen. The OCX (ActiveX Control) mustfirst be registered, if it was not already done so as part of the installation of the ActiveX control. IWSprovides 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 bechanged in the Object Properties dialog box, accessed by double clicking on the control in the IWSdevelopment environment, but the name of the control must be unique from any other control used bythe current IWS application. In the Object Properties dialog box, the Configuration button will provideaccess to the Properties, Methods and Events accessible for this ActiveX control. In the Configurationdialog box, there is a tab for Events, which allow for the execution of a VBScript code segment if anEvent 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 6.0Configure the Control’s Properties,Methods & EventsSelect to input VBScript codesegments for the ActiveXControl EventsInduSoft, Ltd. 39
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