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++

Files in a sdi and mdi application, Files in a SDI and MDI Application: ...

Files in a SDI and MDI Application: Both the SDI and MDI projects have 4 implementation files (.cpp extension). These are the files equivalent to the Document Class, View Clas

Numeric data types - visual basic, Numeric data types: The Integer, lo...

Numeric data types: The Integer, long integer are used for entire numbers. Single and doubles are related with the floating point numbers. Currency is related with numbers dea

Tooltip - intrinsic control, ToolTip: The ToolTip property is used to ...

ToolTip: The ToolTip property is used to flash a message regarding a control object when the mouse pointer moves over that object for a couple of seconds. Pick a control and c

Application to count the number of possible triangles, A triangle is equila...

A triangle is equilateral if all three sides are equal, isosceles if any two (but no more than two) sides are equal, and scalene if no two sides are equal. A triangle will be input

Conditional statements, You can control the flow of your script with condit...

You can control the flow of your script with conditional statements & looping statements.  By using conditional statements, you can write VBScript code which makes decisions and re

Files in a visual basic project, FILES IN A VB PROJECT The project file...

FILES IN A VB PROJECT The project file has the.vbp extension. The form in which we draw has the .frm extension; .mod denotes the module file; .cls denotes the class file; .res

Making decisions with select case, The Select Case structure provides an op...

The Select Case structure provides an option to If...Then...Else If for selectively executing one block of statements from amongst multiple blocks of statements. Any Select Case st

Project, I have a project due tomorrow that I am really struggling in. Plea...

I have a project due tomorrow that I am really struggling in. Please help.

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