linux读取键盘输入值方法

1、使用GTK中的GdkEvent
     GdkEvent *event;
     event = gdk_event_new (GDK_KEY_PRESS);              //按键按下
     event->key.send_event = TRUE;
     event->key.keyval = GDK_1;
     event->key.window = window;
     gtk_main_do_event (event);
     gdk_event_free (event);
     event = gdk_event_new (GDK_KEY_RELEASE);          //按键弹起
     event->key.send_event = TRUE;
     event->key.keyval = GDK_1;
     event->key.window = window;
     gtk_main_do_event (event);
     gdk_event_free (event);
这种方法并不适合所有情况，例如编辑框显示不了字符，按键消息倒是能收到，不
知道是不是我的程序有问题，欢迎大家指正。

2.使用Xlib
     #include <X11/extensions/XTest.h>
     #include <X11/keysym.h>
     Display *disp = XOpenDisplay (NULL);
     keysym = XK_1;
     //True为按下，False为弹起
     XTestFakeKeyEvent (disp, XKeysymToKeycode (disp, keysym), True,
CurrentTime);
     XTestFakeKeyEvent (disp, XKeysymToKeycode (disp, keysym), False,
CurrentTime);
     XCloseDisplay (disp);
编译的时候要加上-lXtst选项，这种情况依赖于XLib。

3、直接写键盘设备
     #include <linux/input.h>
     /* open keyboard */
     fd_kb = open ("/dev/input/event0", O_RDWR);
     struct input_event event;
     event.code = KEY_1;
     event.type = EV_KEY;
     event.value = 1;                 //1表示按下，0表示释放，2表示长按
     gettimeofday (&event.time ......



1)#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <string.h>
#include <fcntl.h>
#include <linux/input.h>


int main(int argc, char **argv)
{
int fd;
int a;
int i;
int flag11;
unsigned char strOutput[8];

struct input_event inmyself;
fd=open("/dev/input/event1",O_RDWR);
if(fd==-1){printf ("open keyboard err:%d\n",fd);}

while(1){
goon:        flag11=read(fd, &inmyself, sizeof(inmyself));
         if(fd==-1){printf ("read keyboard err:%d\n",fd);}
         else
//{for(i=0;i<8;i++)
         {
         printf ("\n\n####################\n");
         printf ("type :%d\n",inmyself.type);
         printf ("code :%d\n",inmyself.code);
         printf ("value :%d\n",inmyself.value);
         printf ("####################\n\n");
}
if (inmyself.value) goto goon;

if(inmyself.code == 1)
     break;
//}
}
         close(fd);

         return 0;
}