arrow keys gaming keyboard

#include <stdio.h>
#include <conio.h>

int main() {
    int ch;

    while(1) {
        ch = getch();

        if(ch == 0 || ch == 224) {
            ch = getch();

            switch(ch) {
                case 72:
                    printf("Up arrow key pressed\n");
                    break;
                case 80:
                    printf("Down arrow key pressed\n");
                    break;
                case 75:
                    printf("Left arrow key pressed\n");
                    break;
                case 77:
                    printf("Right arrow key pressed\n");
                    break;
                default:
                    printf("Some other special key pressed\n");
                    break;
            }
        }
    }

    return 0;
}

Explanation:

  • #include <stdio.h>: Includes the standard input/output library for functions like printf.
  • #include <conio.h>: Includes the console input/output library for functions like getch().

  • int main() { ... }: Main function where the program execution begins.

  • int ch;: Declares an integer variable ch to store the input character.

  • while(1) { ... }: Infinite loop to continuously read keyboard input.

  • ch = getch();: Reads a character from the keyboard and stores it in the variable ch.

  • if(ch == 0 || ch == 224) { ... }: Checks if the character is a special key.

  • ch = getch();: Reads the next character to determine the specific arrow key.

  • switch(ch) { ... }: Evaluates the value of ch to determine the arrow key pressed.

  • case 72:: Checks if the up arrow key (ASCII code 72) is pressed and displays a message.

  • case 80:: Checks if the down arrow key (ASCII code 80) is pressed and displays a message.

  • case 75:: Checks if the left arrow key (ASCII code 75) is pressed and displays a message.

  • case 77:: Checks if the right arrow key (ASCII code 77) is pressed and displays a message.

  • default:: Executes if none of the arrow keys are pressed, displaying a generic message for other keys.

  • return 0;: Indicates successful execution and termination of the main function.