VBScript Reference Manual for InduSoft Web Studio

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VBScript Reference Manual InduSoft Web Studio Cos Description Returns the cosine of an angle. Usage realVal = Cos(number) Arguments number The number argument can be any valid numeric expression that expresses an angle in radian Return Returns the cosine of an angle as a Variant subtype Double. Result is in radians. Remarks The Cos function takes an angle and returns the ratio of two sides of a right triangle. The ratio is the length of the side adjacent to the angle divided by the length of the hypotenuse. The result lies in the range -1 to 1. To convert degrees to radians, multiply degrees by pi /180. To convert radians to degrees, multiply radians by 180/pi. See also Atn, Sin, and Tan Example Dim MyAngle, MySecant MyAngle = 1.3 ' Define angle in radians. MySecant = 1 / Cos(MyAngle) ' Calculate secant. Angle = (30 * 3.14159/180) ‘ Convert 30 degrees into radians AngleCos = Cos(Angle) ‘ Compute cosine of angle CreateObject Description Creates and returns a reference to an Automation object. Usage Set objName = CreateObject(servername.typename [, location]) Arguments servername Required. The name of the application providing the object. typename Required. The type or class of the object to create. location Optional. The name of the network server where the object is to be created. Return An object reference Remarks The servername and typename together are often referred to as a ProgID, or Programmatic ID. A ProgID may actually have multiple parts (e.g. servername.typename.version)To avoid confusion, note that the parameter servername refers to a Microsoft COM server (automation server) applications such as Microsoft Access, Excel, Word. Other COM servers such as ADO.NET can be referenced. Automation servers provide at least one type of object. For example, a wordprocessing application may provide an application object, a document object, and a toolbar object. To create an Automation object, assign the object returned by CreateObject to an object variable. This code starts the application that creates the object (in this case, a Microsoft Excel spreadsheet). Dim ExcelSheet Set ExcelSheet = CreateObject("Excel.Sheet") Once an object is created, refer to it in VBScript code using the object variable you defined. As shown in the following example, you can access properties and methods of the new object using the object variable, ExcelSheet, and other Excel objects, including the Application object and the ActiveSheet.Cells collection. ExcelSheet.Application.Visible = True ' Make Excel object. visible ExcelSheet.ActiveSheet.Cells(1,1).Value = "ABC" ‘ Place text in row 1, col 1 ExcelSheet.SaveAs "C:\DOCS\TEST.XLS" ' Save the sheet. ExcelSheet.Application.Quit ‘ Close Excel Set ExcelSheet = Nothing ' Release the object variable. Creating an object on a remote server can only be accomplished when Internet security is turned off. You can create an object on a remote networked computer by passing the name of the computer to the servername argument of CreateObject. That name is the same as the machine name portion of a share name. For a network share named "\\myserver\public", the servername is "myserver". In addition, you can specify servername using DNS format or an IP address. 122 InduSoft, Ltd.
InduSoft Web Studio VBScript Reference Manual Example The following code returns the version number of an instance of Excel running on a remote network computer named "myserver". An error occurs if the specified remote server does not exist or cannot be found. Dim XLApp Set XLApp = CreateObject("Excel.Application", "MyServer") GetVersion = XLApp.Version CSng Description Returns an expression that has been converted to a Variant of subtype Single Usage sngVal = CSng(expression) Arguments expression The expression argument is any valid expression Return A single-precision real value Remarks CSng provides an internationally aware conversion from any other data type to a Single subtype. For example, different decimal separators are properly recognized depending on the locale setting of your system, as are different thousand separators. If expression lies outside the acceptable range for the Single subtype, an error occurs See Also CBool, CByte, CCur, CDbl, CInt, CLng, CStr Example Dim MyDouble1, MyDouble2, Dim MySingle1, MySingle2 'MyDouble1, MyDouble2 are Doubles. MyDouble1 = 75.3421115 MyDouble2 = 75.3421555 MySingle1 = CSng(MyDouble1) 'MySingle1 contains 75.34211. MySingle2 = CSng(MyDouble2) 'MySingle2 contains 75.34216. CStr Description Returns an expression that has been converted to a Variant of subtype String Usage strVal = CStr(expression) Arguments expression The expression argument is any valid expression Return A string value Remarks You should use the CStr function instead of Str to provide internationally aware conversions from any other data type to a String subtype. For example, different decimal separators are properly recognized depending on the locale setting of your system. The data in expression determines what is returned according to the following table: If expression is CStr returns Boolean A String containing True or False Date A String containing a date in the short-date format of your system Null A run-time error Empty A zero-length String (“”) Error A String containing the word Error followed by the error number Other numeric A String containing the number See Also CBool, CByte, CCur, CDbl, CInt, CLng, CSng Example Dim MyDouble, MyString MyDouble = 437.324 ' MyDouble is a Double. MyString = CStr(MyDouble) ' MyString contains the string "437.324". InduSoft, Ltd. 123
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VBScript Reference Manual for InduSoft Web Studio

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