将CGKeyCode转换为字符

Question

我一直无法知道如何将CGKeyCode转换为相应的字符。

那么你怎么做呢？

Answer 1

这是the RUI project中的一个函数，它具有部分表格。

char * keyStringForKeyCode(int keyCode) 
{ 
    // Proper key detection seems to want a switch statement, unfortunately 
    switch (keyCode) { 
     case 0: return("a"); 
     case 1: return("s"); 
     case 2: return("d"); 
     case 3: return("f"); 
     case 4: return("h"); 
     case 5: return("g"); 
     case 6: return("z"); 
     case 7: return("x"); 
     case 8: return("c"); 
     case 9: return("v"); 
     // what is 10? 
     case 11: return("b"); 
     case 12: return("q"); 
     case 13: return("w"); 
     case 14: return("e"); 
     case 15: return("r"); 
     case 16: return("y"); 
     case 17: return("t"); 
     case 18: return("1"); 
     case 19: return("2"); 
     case 20: return("3"); 
     case 21: return("4"); 
     case 22: return("6"); 
     case 23: return("5"); 
     case 24: return("="); 
     case 25: return("9"); 
     case 26: return("7"); 
     case 27: return("-"); 
     case 28: return("8"); 
     case 29: return("0"); 
     case 30: return("]"); 
     case 31: return("o"); 
     case 32: return("u"); 
     case 33: return("["); 
     case 34: return("i"); 
     case 35: return("p"); 
     case 36: return("RETURN"); 
     case 37: return("l"); 
     case 38: return("j"); 
     case 39: return("'"); 
     case 40: return("k"); 
     case 41: return(";"); 
     case 42: return("\\"); 
     case 43: return(","); 
     case 44: return("/"); 
     case 45: return("n"); 
     case 46: return("m"); 
     case 47: return("."); 
     case 48: return("TAB"); 
     case 49: return("SPACE"); 
     case 50: return("`"); 
     case 51: return("DELETE"); 
     case 52: return("ENTER"); 
     case 53: return("ESCAPE"); 

     // some more missing codes abound, reserved I presume, but it would 
     // have been helpful for Apple to have a document with them all listed 

     case 65: return("."); 

     case 67: return("*"); 

     case 69: return("+"); 

     case 71: return("CLEAR"); 

     case 75: return("/"); 
     case 76: return("ENTER"); // numberpad on full kbd 

     case 78: return("-"); 

     case 81: return("="); 
     case 82: return("0"); 
     case 83: return("1"); 
     case 84: return("2"); 
     case 85: return("3"); 
     case 86: return("4"); 
     case 87: return("5"); 
     case 88: return("6"); 
     case 89: return("7"); 

     case 91: return("8"); 
     case 92: return("9"); 

     case 96: return("F5"); 
     case 97: return("F6"); 
     case 98: return("F7"); 
     case 99: return("F3"); 
     case 100: return("F8"); 
     case 101: return("F9"); 

     case 103: return("F11"); 

     case 105: return("F13"); 

     case 107: return("F14"); 

     case 109: return("F10"); 

     case 111: return("F12"); 

     case 113: return("F15"); 
     case 114: return("HELP"); 
     case 115: return("HOME"); 
     case 116: return("PGUP"); 
     case 117: return("DELETE"); // full keyboard right side numberpad 
     case 118: return("F4"); 
     case 119: return("END"); 
     case 120: return("F2"); 
     case 121: return("PGDN"); 
     case 122: return("F1"); 
     case 123: return("LEFT"); 
     case 124: return("RIGHT"); 
     case 125: return("DOWN"); 
     case 126: return("UP"); 

     default: 
      // Unknown key, bail and note that RUI needs improvement 
      fprintf(stderr, "%ld\tKey\t%c (DEBUG: %d)\n", currenttime, keyCode); 
      exit(EXIT_FAILURE); 
    } 
}