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The Frame:
As the name suggests, the frame is a combination of the building blocks, structure and the borders of an item. The frame gives the "physical" presence to a window. The frame defines the position of an object with regards to the Windows desktop. The frame gives borders to a window, borders which the user can grab to size, move & resize the object. The frame is also a type of desk which holds the tools required on an application.
The application cannot exist without a frame. To provide a frame to an application, you can derive a class from the CFrameWnd.
The MFC provides a mechanism for notifying the views of modifications to a document through the UpdateAllViews member function of the CDocument class. The UpdateAllViews function traverse the list of views attached to the document. The function calls the OnUpdate of the CViewClass . Invalidate (TRUE) in OnUpdate clears the client region of the view and calls the OnDraw()function of the view class. The Document View architecture permits the variables in the document class to be exhibited in the view class using the GetDocument() function in the view class.
Executesql: The ExecuteSQL is used for executing the query on the database. The CRecordset uses the RFX mechanism to replace data between field data members of the record set
Function IsPalindrome(str) Dim iStart,iEnd,ctr,blnPalin str=trim(str) blnPalin=true iEnd=len(str) iCnt=round(iEnd / 2) iStart=1 for ctr=1 to cint(iCnt) if(mid(str,iEnd,
create an application that performs the following operation with the employee file created by the application in programming challenge 1: uses an open dialog box to allow the user
Graphics Device Interface - GDI: The GDI is a windows API. The GDI uses a set of generic graphics objects to draw to the screen, to the memory and printers. Therefore the p
Beyond the simple string or numeric classifications, Variant can make added distinctions regarding the specific nature of numeric information. For instance, you can have numeric in
You can employ For...Next statements to run a block of statements a specific number of times. For loops, employ a counter variable whose value is increased or decreased with each r
INTRODUCTION to VISUAL C++ PROGRAMMING This section introduces you to develop the applications using VC++. The Single document interface (SDI), multiple document interface (MDI
The View: The view is used for visualising. For illustration, while performing word processing, the user works on a sequence of words which compose the text. If a user is perf
FILE SYSTEM CONTROLS There are 3 file system controls as shown in figure. The drive list box, directory list box & the file list box. The drive list box control is used to exhi
In this unit you have learned how to develop Web pages which use VBScript. You have learned to insert logic to your Web pages as along with any other programming application. You h
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