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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.
THE MFC CLASSES The CDocument, CWinAppCFrameWnd and CView are derived from the CObject and they give the majority of the structure and functionality.
MESSAGE LOOP The message loop is the code in the Win 32 based application. It retrieves messages from the application's message queue and passes these to the related window
Select Case: The Select Case is used for handling the multiple paths. The Select Case computes the expression and depending on the value of the equivalent Case statement execu
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
For reason of readability & consistency, employ the following prefixes along with descriptive names for variables in your VBScript code. S ub type Prefi
ARCHITECTURE OF WIN 32 PROGRAM Figure: working of Win 3 program The hardware events in the figure are the mouse associated events like the mouse move, left
Task 1 - Design the DATEX operator's user interfaces for: 1. Preparing messages. 2. Sending messages. 3. Viewing received messages. 4. Optionally view the details of the codin
Visual Processing: Our mind groups the things into patterns and this allows us to process the visual information. Understanding and applying how the human mind processes the v
Check Box: The check box control takes the value as on or off or grayed. The grayed one is neither on nor off. The user can transform the setting of the grayed check box.
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