Piano 예제

piano.zip

#include <stdio.h>

#include <Windows.h>

char key_base[] = { 'a', 's', 'd', 'f', 'j', 'k', 'l', ';' };

double base_frequency[] = { 261.63, 293.66, 329.63, 349.23, 392.00, 440.00, 493.88, 523.25 };

double key2frequncy(char& c)

{

int idx = sizeof(key_base) / sizeof(char);

for (int i = 0; i < idx; ++i) {

if (key_base[i] == c)

return base_frequency[i];

}

return 0.0;

}

void main(void)

{

char c;

//int idx = sizeof(base_frequency) / sizeof(double);

//for (int i = 0; i < idx; ++i)

// Beep((DWORD)base_frequency[i], 500);

do {

c = getchar(); fflush(stdin);

Beep((DWORD)key2frequncy(c), 500);

} while (c != 'q');

}