The frame - document view architecture, Visual Basic Programming

Assignment Help:

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.


Related Discussions:- The frame - document view architecture

Create a visual basic application to play Hangman game, Create a Visual Bas...

Create a Visual Basic that allows a user to play a variation of Hangman. User Inputs The user types a letter into the textbox.   Functional Items 1. Read a

Device contexts - windows programming, Device Contexts: The Device Con...

Device Contexts: The Device Context (DC) is represented by the data type Handle to Device Context (HDC). The HDC is a handle to somewhat you can draw on; it can be the whole s

Modeless dialog, MODELESS DIALOG The Dialog boxes are either modal or m...

MODELESS DIALOG The Dialog boxes are either modal or modeless. The modal dialog box should be closed (Unloaded or hidden) before you can continue the working with the rest of t

Repeating a statement until a condition becomes true, You can employ until ...

You can employ until keyword in two ways to verify a condition in a Do...Loop statement. You can verify the condition before you enter the loop (as illustrated in the following Chk

Crop image from tif and paste it on Excel Sheet, I have a tiff image of 25 ...

I have a tiff image of 25 pages. I capture particular square from particular page and past on one excel sheet one by one. it is possible, if yes how. Image have line no and pe

Dynamic link library - dll , DYNAMIC LINK LIBRARY - DLL   The DLL are ...

DYNAMIC LINK LIBRARY - DLL   The DLL are files which can be called when required by the other program that is running in the computer. The DLL files which support the specific

Windows programming, WINDOWS PROGRAMMING The Windows programming is a d...

WINDOWS PROGRAMMING The Windows programming is a developing application using the C and the native Win32 application interface (API) or C++ and the class libraries like Microso

Differences between Property Get, What are the differences between Property...

What are the differences between Property Get, Set and Let? Set - Value assigned to ActiveX Object from the form. Let - Value retried to ActiveX Object from the form. Get- Assigns

Document interfaces - visual basic programming, DOCUMENT INTERFACES   ...

DOCUMENT INTERFACES   A SDI (Single document interface) and the MDI (Multiple document interfaces) are the document interfaces. The MDI based applications can have numerous ch

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd