Device context - visual c++, Visual Basic Programming

Assignment Help:

DEVICE CONTEXT

The device context provides the essential drawing tools and the platform to draw. It helps to draw the text, shapes, lines etc. To create the device context, the MFC provides different classes like CDC and CClientDC.

The CDC is the most primary class to draw in MFC. It provides all of the fundamental drawing steps.

The CClientDC class is used for drawing in the client region of a window.

The Device context is a windows data structure which supports the device independent output.

The function of device context is best elaborated by the figure.

624_role of device context.png

Figure: The Role of Device Context

The logical display is a virtual device and Actual display is the physical device. The programmers do not require worrying about the medium in which he is writing the output. The device context takes care of the output medium.


Related Discussions:- Device context - visual c++

Check whether a number is palindrome or not, Function IsPalindrome(str) ...

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,

Very Very Boards, This is from the book Programming in Visual Basic 2010 by...

This is from the book Programming in Visual Basic 2010 by Julia Case Bradley and Anita C. Millspaugh. The assignment is located in Chapter 3 on page 154. Before I type it in, I wou

Messages - visual basic programming, MESSAGES The Windows-based applica...

MESSAGES The Windows-based applications do not make explicit function calls to acquire input. They wait for the system to pass the input to them. The system passes input to the

While loop - vbscript, In VBScript, the While...Wend statement is provided ...

In VBScript, the While...Wend statement is provided for those who are familiar along its usage. However, due to the lack of flexibility in While...Wend, it is suggested that you us

Select case - control statement, Select Case: The Select Case is used ...

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

Creation of the menu in visual basic, Creation of the Menu in VB 1. Ini...

Creation of the Menu in VB 1. Initiate a new project by choosing a file and then new project. 2. Now select the Standard EXE as the Project type. 3. Build the Form1 activ

Module - dialog box in visual basic, MODULE The Modules are the collect...

MODULE The Modules are the collection of VB statements. Modules are used to simplify the program development. To add a module to your project, choose the project tabpage, and t

Create an application for hospital management, 1.   Make project in Visual ...

1.   Make project in Visual Studio 2008. 2.   Controller Class is used for functioning. 3.   Login Form where three people can login like manager, staff and receptionist we c

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