一个在linux下的键盘字符识别程序

本文主要是介绍一个在linux下的键盘字符识别程序，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

一软件说明：在linux下ubuntu9.11下运行：gcc keypad1.c -o keypad1 lcurses
:./keypad1

二可以用这个软件锻炼自己的打字说平，每按下一个键盘上面的字符。屏幕上就会显示该字符。

代码：//该程序用于锻炼键盘打字水平
#include <unistd.h>
#include <stdlib.h>
#include <curses.h>

#define LOCAL_ESCAPE_KEY 27

int main()
{
int key;

initscr();
crmode();
keypad(stdscr,TRUE);

noecho();
clear();
mvprintw(5,5,"Key pad demonstration. Press 'q' to quit");
move(7,5);
refresh();
key=getch();

while(key!=ERR && key!='q'){
    move(7,5);
    clrtoeol();

   if((key>='A'&&key<='Z')||(key>='a'&&key<='z')){
    printw("key was %c",(char)key);
    }
else if((key>='0'&&key<='9')){
    printw("key was %c",(char)key);
    }
    else
     {
      switch(key){
        case LOCAL_ESCAPE_KEY:printw("%s","Escape key");break;
        case KEY_END:printw("%s","END_KEY");break;
        case KEY_BEG:printw("%s","BEG_KEY");break;
        case KEY_RIGHT:printw("%s","RIGHT_KEY");break;
        case KEY_LEFT:printw("%s","LEFT_KEY");break;
        case KEY_UP:printw("%s","UP_KEY");break;
        case KEY_DOWN:printw("%s","DOWN_KEY");break;
        case 9:printw("%s","Tab key");break;
        case 13:printw("%s","Enter key");break;
        case 20:printw("%s","Caps Lock");break;
        case 10:printw("%s","ENTER");break;
        case 17:printw("%s","ctrl");break;
        case 18:printw("%s","Alt");break;
        case 32:printw("%s","VK_SPACE");break;
        case 8:printw("%s","back");break;
        case 91:printw("%s","[");break;
        case 92:printw("%s","|);break;
        case 93:printw("%s","]");break;
        case 96:printw("%s","~");break;
        case 45:printw("%s","-");break;
        case 262:printw("%s","Home");break;
        case 263:printw("%s","Backspace");break;
        case 331:printw("%s","insert");break;
        case 339:printw("%s","Page Up");break;
        case 338:printw("%s","Page down");break;
        case 330:printw("%s","Delete");break;

        case 39:printw("%s"," feihao ");break;
        case 61:printw("%s"," = ");break;
        case 59:printw("%s",":");break;
        case 44:printw("%s","<");break;
        case 46:printw("%s",">");break;
        case 47:printw("%s","?");break;
        default:printw("Unmatched-%d",key);break;
        }
      }

    refresh();
    key=getch();
}

endwin();
exit(EXIT_SUCCESS);
}