如何判断键盘击键？

liwz123 2003-06-13 01:42:18

如题。
我知道在windows里有个_kbhit的函数来判断，但在linux下如何判断？
望高手请教。

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mingjava 2003-06-14

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好像只能捕获字母对方向键有点无能为力，我运行了一下。

另外录入有点错误，
int readcn();//should change to int readch();

int main(void)
{
int ch = 0;

init_keyboard();

/* Looping, press q to quit */
while (ch != 'q') {
printf("Looping\n");
sleep(1);
if (kbhit()) {
ch = readcn();//should change ro ch = readch();

谁有判断方向键按下的函数谢谢

Joran 2003-06-13

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我给你敲进来，干脆。
#include <stdio.h>
#include <termios.h>
#include <term.h>
#include <curses.h>
#include <unistd.h>

static struct termios initial_settings;
static struct termios new_settings;
static int peek_character = -1;
void init_keyboard();
void close_keyboard();
int kbhit();
int readcn();

int main(void)
{
int ch = 0;

init_keyboard();

/* Looping, press q to quit */
while (ch != 'q') {
printf("Looping\n");
sleep(1);
if (kbhit()) {
ch = readcn();
printf("You hit %c\n", ch);
}
}

close_keyboard();
exit(0);

}

void init_keyboard()
{
tcgetattr(0, &initial_settings);
new_settings = initial_settings;
new_settings.c_lflag &= ~ICANON;
new_settings.c_lflag &= ~ECHO;
new_settings.c_lflag &= ~ISIG;
new_settings.c_cc[VMIN] = 1;
new_settings.c_cc[VTIME] = 0;
tcsetattr(0, TCSANOW, &new_settings);
}

void close_keyboard()
{
tcsetattr(0, TCSANOW, &initial_settings);
}

int kbhit()
{
char ch;
int nread;

if (peek_character != -1) {
return 1;
}
new_settings.c_cc[VMIN] = 0;
tcsetattr(0, TCSANOW, &new_settings);
nread = read(0, &ch, 1);
new_settings.c_cc[VMIN] = 1;
tcsetattr(0, TCSANOW, &new_settings);

if (nread == 1) {
peek_character = ch;
return 1;
}

return 0;
}

int readch()
{
char ch;

if (peek_character != -1) {
ch = peek_character;
peek_character = -1;
return ch;
}
read(0, &ch, 1);
return ch;
}