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++

Benefits of using dynamic link library, Benefits of Using DLLs: The dy...

Benefits of Using DLLs: The dynamic linking has the following advantages which are as shown below: It saves memory and decreases the swapping. Many processes can use a s

Gdi object cpen, Illustration of GDI object CPen: 1. Generate a SDI ap...

Illustration of GDI object CPen: 1. Generate a SDI application. And name it as gdipen. 2. Press ctrl (control key) and W altogether to invoke the class wizard. 3. Choose

Account Balance, The user has to enter a starting balance, the dollar amoun...

The user has to enter a starting balance, the dollar amount of deposits, and the dollar amount of withdrawals. the program then has to calculate the balance

Features of user interface design, FEATURES OF USER INTERFACE DESIGN Th...

FEATURES OF USER INTERFACE DESIGN The features like how will the software's are used? Who will be the users? What will be the life of the software? During its lifetime how ofte

Design the lookup tables for coding a message, Task 1 - Design the DATEX o...

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

Restricting the vocabulary - visual interface design, Restricting The Vocab...

Restricting The Vocabulary: The properly formed vocabulary is like an inverted pyramid. All easy to learn communication system follow this pattern. The canonical vocabulary in

Tab order - dialog, Tab Order: The tab order stands for the order in w...

Tab Order: The tab order stands for the order in which the controls receive focus when the user clicks the tab key. The CTRL + D can be used to set the tab order of controls.

Vbscript variables, A variable is convenient placeholder which refers to a ...

A variable is convenient placeholder which refers to a computer memory location where you can store program information which may change when your script is running. For instance,

Descriptive variable and procedure names, The body of variable or procedure...

The body of variable or procedure name must use mixed case and complete as essential to define its purpose. Additionally, procedure names must begin with a verb, such as CloseDialo

How to replace the text from textbox to another., I''m doing a project on v...

I''m doing a project on vb.NET. I''m stuck with this place where I should replace the text to different characters from textbox1 to textbox2 without changing text in textbox1. For

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