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

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In the world of C programming language, the clrscr() function holds a significant place when it comes to clearing the panel and screen. As the name suggests, clrscr() is short for “clear screen.” It is a function that allows programmers to swiftly remove all the existing content from the screen, creating a blank canvas for subsequent operations.

By using clrscr(), developers can avoid cluttered and messy displays to ensure a more organized and user-friendly interface. This function is primarily used in console applications where a clean and uncluttered screen is required, enabling users to have a seamless and visually appealing experience.

While there are multiple ways to achieve screen clearance, the clrscr() function is particularly useful due to its simplicity and ease of implementation. In this article, we will delve deeper into understanding the clrscr() function and explore how to effectively utilize it to clear panels and screens in the C programming language.

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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.

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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.

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In conclusion, the clrscr() function in C programming language is a built-in function that is used to clear the console screen or panel. This function is particularly handy when it comes to creating a user-friendly and efficient user interface. It erases all the characters and moves the cursor to the top left corner of the screen. By using the clrscr() function, programmers are able to provide a clean and visually appealing screen for the users, making the program easier to use and navigate. Overall, understanding how to utilize the clrscr() function is crucial in order to effectively clear the panel and screen in C programming language.

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