linux 下的 kbhit功能示例。

wide288

看书上的例子，抄下来给朋友当圣诞礼物了。;)
书名是《Beginning Linux Programming Third Edition》
246页左右的位置。

1. 
   
2. #include <stdio.h>
   
3. #include <termios.h>
   
4. #include <term.h>
   
5. #include <curses.h>
   
6. #include <unistd.h>
   
7. static struct termios initial_settings, new_settings;
   
8. static int peek_character = -1;
   
9. void init_keyboard();
   
10. void close_keyboard();
    
11. int kbhit();
    
12. int readch();
    
13. 
    
14. int main()
    
15. {
    
16.   int ch = 0;
    
17. 
    
18.   init_keyboard();
    
19.   while(ch != 'q'){
    
20.     printf("looping\n");
    
21.     sleep(1);
    
22.     if(kbhit()){
    
23.       ch = readch();
    
24.       printf("you hit %c\n", ch);
    
25.     }
    
26.   }
    
27.   close_keyboard();
    
28.   exit(0);
    
29. }
    
30. 
    
31. void init_keyboard()
    
32. {
    
33.   tcgetattr(0, &initial_settings);
    
34.   new_settings = inital_settings;
    
35.   new_settings.c_lflag &= ~ICANON;
    
36.   new_settings.c_lflag &= ~ECHO;
    
37.   new_settings.c_lflag &= ~ISIG;
    
38.   new_settings.c_cc[VMIN] = 1;
    
39.   new_settings.c_cc[VTIMB] = 0;
    
40.   tcsetattr(0, TCSANOW, &new_settings);
    
41. }
    
42. 
    
43. void close_keyboard()
    
44. {
    
45.   tcsetattr(0, TCSANOW, &initial_settings);
    
46. }
    
47. 
    
48. int kbhit()
    
49. {
    
50.   char ch;
    
51.   int nread;
    
52. 
    
53.   if(peek_character != -1)
    
54.     return 1;
    
55.   new_settings.c_cc[VMIN] = 0;
    
56.   tcsetattr(0, TCSANOW, &new_settings);
    
57.   nread = read(0, &ch, 1);
    
58.   new_settings.c_cc[VMIN] = 1;
    
59.   tcsetattr(0, TCSANOW, &new_settings);
    
60.   if(nread == 1){
    
61.     peek_character = ch;
    
62.     return 1;
    
63.   }
    
64.   return 0;
    
65. }
    
66. 
    
67. int readch()
    
68. {
    
69.   char ch;
    
70. 
    
71.   if(peek_character != -1){
    
72.     ch = peek_character;
    
73.     peek_character = -1;
    
74.     return ch;
    
75.   }
    
76.   read(0, &ch, 1);
    
77.   return ch;
    
78. }
    

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ywchen2000

终端图形编程?????
楼主在翻译这本书马???

ywchen2000

studystudy

wide288

我不是写书名了吗