trap_keys.cpp

#include <iostream>
#include <string>
#include <stdio.h>

using namespace std;

char const hex[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B','C','D','E','F'};
    
int main(){
    // Testing char: printf("%c",13);
	
    char c;
    c=cin.get();

    // else if(c=='\n') { cout << "Enter pressed!";  }
    if(c==10) { cout << "The enter key was pressed!\n"; /* Trap Enter key. 0x10, \x10 */ }
    else if(c==13) { cout << "Carriage return performed!\n"; }
    else if(c==0x20) { cout << "Space pressed!\n"; /* Trap Space key. */ }
    else if(c==0x41) { cout << "A pressed!\n"; /* Trap A key. */ }
    else if(c==0x42) { cout << "B pressed!\n"; /* Trap B key. */ }
    else if(c==0x43) { cout << "C pressed!\n"; /* Trap C key. */ }
    else if(c==0x44) { cout << "D pressed!\n"; /* Trap D key. */ }
    else { cout << "Something pressed...\n"; /* Trap any key besides the ones from the if statements above. */ }
    if(c!=10 || c==13) { cout << "Converted character to HEX: " << std::hex << int(c) << ".\r\n"; /* Convert character to HEX. */ }
    
    return 0;
}