linux 处理键盘 鼠标事件

1.读取键盘的值，进行相应的处理。

#include <stdio.h>
#include <linux/input.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

int main()
{
int fd_kb;

struct input_event event_kb;

fd_kb = open("/dev/input/event1", O_RDONLY); //键盘输入
if(fd_kb <= 0)
{
printf("open device error\n");
return 0;
}

while(1)
{
if(read(fd_kb, &event_kb, sizeof(event_kb)) == sizeof(event_kb))
{
if (event_kb.type == EV_KEY)
{
//if (event_kb.value == 0 || event_kb.value == 1)//1表示按下，0表示释放，会检测到两次
if (event_kb.value == 1)//键按下
{
//printf("key %d %s\n", event_kb.code, (event_kb.value) ? "Pressed" : "Released");
if(event_kb.code == KEY_ESC)
break;
if(event_kb.code == KEY_Q)
printf("q\n");
if(event_kb.code == KEY_W)
printf("w\n");
if(event_kb.code == KEY_E)
printf("e\n");
if(event_kb.code == KEY_R)
printf("r\n");
}

}

}

}
close(fd_kb);
return 0;
}

2.获取并处理鼠标左键按下，右键按下，滚轮按下，滚轮上下滑动事件

#include <stdio.h>
#include <linux/input.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

int main()
{
int fd_mouse;

struct input_event event_mouse;

fd_mouse = open("/dev/input/event4", O_RDONLY); //鼠标输入
if(fd_mouse <= 0)
{
printf("open device error\n");
return 0;
}

while(1)
{
if(read(fd_mouse, &event_mouse, sizeof(event_mouse)) == sizeof(event_mouse))
{
if(event_mouse.type = EV_REL)
{
if(event_mouse.code == REL_WHEEL)
printf("REL_WHEEL %d\n", event_mouse.value);//-1表示下滑，1表示上滑
}

if(event_mouse.code == BTN_LEFT && event_mouse.value==1)//左键按下，1表示按下，0表示释放。不然会检测到两次
printf("left down: %d\n", event_mouse.code);

if(event_mouse.code == BTN_RIGHT && event_mouse.value==1)
printf("right down: %d\n", event_mouse.code);

if(event_mouse.code == BTN_MIDDLE && event_mouse.value==1)
printf("middle down: %d\n", event_mouse.code);

}
}
close(fd_mouse);
return 0;
}

重要的参考资料：
1.http://staratsky.iteye.com/blog/1734631
2.http://blog.chinaunix.net/uid-20666855-id-4905405.html
3.http://blog.csdn.net/shijian408/article/details/26578007