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Sets or returns context ID for topic in Help File. If Help file is indicated in the VBScript Err Object HelpFile Property, the HelpContext property is utilized to display automatically the Help topic identified. If HelpFile and HelpContext both are empty, the value of the VBScript Err Object Number Property is verified. If it corresponds to VBScript run-time error value, then the VBScript Help context ID for error is utilized. If the Number property does not correspond to VBScript error, the contents screen Help file is displayed for VBScript.
Syntax Err.HelpContext [= contextID]
Argument: contextID A valid identifier for Help topic into the Help file. Optional.
A For Each...Next loop is similar to a For...Next loop. Rather than repeating the statements a particular number of times, For Each...Next loop repeats group of statements for each
Data types: The New data types were defined by using the typedef or #define statements. This was to allow the transition from 16 bit to 32 bit system. Some of the fresh data t
Describe different validation controls of VB.net?
If Then Else: The control statement If Then Else is used for computing a condition and taking the action based on the condition. If the condition is true then the section will
FILES IN A VB PROJECT The project file has the.vbp extension. The form in which we draw has the .frm extension; .mod denotes the module file; .cls denotes the class file; .res
THE MFC CLASSES The CDocument, CWinAppCFrameWnd and CView are derived from the CObject and they give the majority of the structure and functionality.
This section will discuss the fundamentals of VBScript and define concepts such as datatypes, loops and others. VBScript Data Types VBScript contain only one data type called
DIALOG The dialog is a window which contains controls. The Dialog boxes are the form of input and output. The control can be placed on the dialog box for communicating. If y
Message Handling: 1. The message is send to the window. And it is sent to the Window Procedure. 2. The message map holds all the message handlers. 3. The window procedur
1. Create a new solution file named Ch03HandsOnProject1. 2. Rename the form and set the filename of the form to frmMain and frmMain.vb, respectively. 3. Set the appropriate p
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