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++

Create an application, 1. Create a new solution file named Ch03HandsOnProje...

1. Create a new solution file named Ch03HandsOnProject1. 2. Rename the form and set the filename of the form to frmMain and frmMain.vb, respectively. 3. Set the appropriate p

The view - document view architecture, The View: The view is used for ...

The View: The view is used for visualising. For illustration, while performing word processing, the user works on a sequence of words which compose the text. If a user is perf

Dialog boxes in vb, DIALOG BOXES IN VB The two dialog boxes, namely, th...

DIALOG BOXES IN VB The two dialog boxes, namely, the message box and the input box are usually used in the Visual Basic. The message box is used for displaying the messages to

Loan program, need help with logic part of loan program

need help with logic part of loan program

Functions, write a v.net function called is vowel that returns true for vow...

write a v.net function called is vowel that returns true for vowel letters

How to include list box control in visual basic project, How to Include Lis...

How to Include List Box control in your project A list box is used for representing the users with a data. You can prefer the data from the list box for data entry. No editing

For next loop - vbscript, You can employ For...Next statements to run a blo...

You can employ For...Next statements to run a block of statements a specific number of times. For loops, employ a counter variable whose value is increased or decreased with each r

Repeating statements while a condition is true, Use the While keyword to ve...

Use the While keyword to verify a condition in a Do...Loop statement. You can verify the condition before you enter the loop (as illustrated in the following ChkFirstWhile instance

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

Loop statement from inside the loop, You can exit a Do...Loop using the Exi...

You can exit a Do...Loop using the Exit Do statement. Since usually you desire to exit only in certain situations, such as to ignore an endless loop, you should employ the Exit Do

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