jimon

int clicks=0;
int times=0;
.....
if mousehit()
{
times += getTime();
clicks++;
}
.....
if (times>max_time)
{
times=0;
clicks=0;
}

if (clicks == 2)
{
printf("DOUBLE CLICK !!! WOW !!! OMG !!! user mega respect!\n");
}