- 1 year ago
Checking for keypress while still being able to type into a cin
If you want to check for a keypress while still being able to type into std::cin
, you'll need to use platform-specific libraries or functions, as this functionality is not provided directly by the standard C++ library. Here's an example using the Windows API on Windows systems:
cpp#include <iostream>
#include <conio.h> // Include the conio.h header for _kbhit() and _getch()
int main() {
std::cout << "Type something (press 'q' to quit):\n";
while (true) {
// Check if a key has been pressed
if (_kbhit()) {
char ch = _getch(); // Get the character without echoing it
if (ch == 'q') {
break; // Quit if 'q' is pressed
}
// Handle the keypress
std::cout << "Key pressed: " << ch << std::endl;
}
// Continue reading from std::cin
std::string input;
std::cin >> input;
std::cout << "You entered: " << input << std::endl;
}
return 0;
}
In this example, _kbhit()
is used to check if a key has been pressed, and _getch()
is used to retrieve the pressed character without echoing it to the console. The program continuously checks for keypresses while also allowing input from std::cin
. Pressing 'q' will break out of the loop and end the program.
Keep in mind that this approach is platform-specific and will only work on Windows systems. If you're working on a different platform, you'll need to explore alternative libraries or functions to achieve a similar result.