What is clrscr() function in C programming language and how to clear panel and screen in C

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In the C programming language, the clrscr() function is used to clear the console screen or panel. When programs are run in a console environment, it is common to have previously displayed information on the screen. This can make the output difficult to read and may cause confusion. The clrscr() function allows programmers to clear the console screen, effectively wiping away any previously displayed content, making the console clean and ready for new output.

Clearing the screen is particularly useful in situations when a program requires frequent updates or continuously changing information, such as a game or real-time data display. Without clearing the screen, the output would become cluttered and unclear. By utilizing the clrscr() function, programmers can ensure that the screen is always refreshed and provides a clear and organized interface for users.

Implementing clrscr() in a C program is fairly straightforward. Before using the function, it needs to be included from the “conio.h” header file. Once included, the clrscr() function can be called at any point in the program where a screen refresh is desired. Upon execution, clrscr() will clear the console screen, providing a blank canvas for new output.

In summary, the clrscr() function in the C programming language serves the purpose of clearing and refreshing the console screen. It allows programmers to enhance the readability and user experience of their programs by removing previously displayed information and creating a clean, organized interface for new output. By understanding how to utilize clrscr() effectively, programmers can ensure that their programs provide a seamless and professional user experience.

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The clrscr() function is used to clear the MS-DOS console screen on older C programming language compilers such as Turbo C and Turbo C++. clrscr() is not a standard C function, so if you compile a program that includes the clrscr() function on a modern compiler like GCC or Clang, you will get a “function not declared” error ( undeclared function) or “not declared in this scope.” So what do you need to do when you want to remove the console from your program? clrscr() with the system() function used to clear the screen in C programming language.

Steps

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Add the stdlib.h header file to the code. The system() function is used to pass commands to the terminal or console. This function is declared in the stdlib.h header file. ^{[1] X Research Source}

• The clrscr() function is defined in the conio.h header file. We’ll remove the clrscr() function and replace it with system() , so you can delete the conio.h header file.

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Replace the clrscr() function with system("cls") on Windows. The cls command clears the console screen when executed on the Windows command prompt. The cls command when passed through the system() function clears the screen very effectively.

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Replace the clrscr() function with system("clear") on Linux or macOS. The system() function will pass the clear command to the console. The Linux (as well as macOS) command to clear the console is clear , so the system("clear") function clears the console window. ^{[2] X Research Source}

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This article is co-authored by a team of editors and trained researchers who confirm the accuracy and completeness of the article.

The wikiHow Content Management team carefully monitors the work of editors to ensure that every article is up to a high standard of quality.

This article has been viewed 9,172 times.

The clrscr() function is used to clear the MS-DOS console screen on older C programming language compilers such as Turbo C and Turbo C++. clrscr() is not a standard C function, so if you compile a program that includes the clrscr() function on a modern compiler like GCC or Clang, you will get a “function not declared” error ( undeclared function) or “not declared in this scope.” So what do you need to do when you want to remove the console from your program? clrscr() with the system() function used to clear the screen in C programming language.

In conclusion, the clrscr() function in C programming language is used to clear the console screen and provide a fresh panel for displaying output. This function is commonly utilized to enhance the readability and organization of the output, especially in scenarios where a program generates a significant amount of information on the screen.

By calling the clrscr() function, the content currently displayed on the screen is removed, making space for new input or output. This function helps to prevent clutter and allows for a clearer presentation of information.

To clear both the panel and the screen, the clrscr() function can be called in the C program. Upon executing this function, all text and visual elements on the screen are erased, leaving behind an empty console ready for further input and output operations.

Overall, the clrscr() function is a useful tool in C programming that facilitates the management and organization of output. By clearing the panel and screen, it improves readability and ensures a clean and presentable display of information.

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