diff --git a/putty.h b/putty.h
index fdcd6ca3..83d4932d 100644
--- a/putty.h
+++ b/putty.h
@@ -343,47 +343,6 @@ typedef enum {
     MA_NOTHING, MA_CLICK, MA_2CLK, MA_3CLK, MA_DRAG, MA_RELEASE, MA_MOVE
 } Mouse_Action;
 
-/* Keyboard modifiers -- keys the user is actually holding down */
-
-#define PKM_SHIFT       0x01
-#define PKM_CONTROL     0x02
-#define PKM_META        0x04
-#define PKM_ALT         0x08
-
-/* Keyboard flags that aren't really modifiers */
-#define PKF_CAPSLOCK    0x10
-#define PKF_NUMLOCK     0x20
-#define PKF_REPEAT      0x40
-
-/* Stand-alone keysyms for function keys */
-
-typedef enum {
-    PK_NULL,            /* No symbol for this key */
-    /* Main keypad keys */
-    PK_ESCAPE, PK_TAB, PK_BACKSPACE, PK_RETURN, PK_COMPOSE,
-    /* Editing keys */
-    PK_HOME, PK_INSERT, PK_DELETE, PK_END, PK_PAGEUP, PK_PAGEDOWN,
-    /* Cursor keys */
-    PK_UP, PK_DOWN, PK_RIGHT, PK_LEFT, PK_REST,
-    /* Numeric keypad */                        /* Real one looks like: */
-    PK_PF1, PK_PF2, PK_PF3, PK_PF4,             /* PF1 PF2 PF3 PF4 */
-    PK_KPCOMMA, PK_KPMINUS, PK_KPDECIMAL,       /*  7   8   9   -  */
-    PK_KP0, PK_KP1, PK_KP2, PK_KP3, PK_KP4,     /*  4   5   6   ,  */
-    PK_KP5, PK_KP6, PK_KP7, PK_KP8, PK_KP9,     /*  1   2   3  en- */
-    PK_KPBIGPLUS, PK_KPENTER,                   /*    0     .  ter */
-    /* Top row */
-    PK_F1,  PK_F2,  PK_F3,  PK_F4,  PK_F5,
-    PK_F6,  PK_F7,  PK_F8,  PK_F9,  PK_F10,
-    PK_F11, PK_F12, PK_F13, PK_F14, PK_F15,
-    PK_F16, PK_F17, PK_F18, PK_F19, PK_F20,
-    PK_PAUSE
-} Key_Sym;
-
-#define PK_ISEDITING(k) ((k) >= PK_HOME && (k) <= PK_PAGEDOWN)
-#define PK_ISCURSOR(k)  ((k) >= PK_UP && (k) <= PK_REST)
-#define PK_ISKEYPAD(k)  ((k) >= PK_PF1 && (k) <= PK_KPENTER)
-#define PK_ISFKEY(k)    ((k) >= PK_F1 && (k) <= PK_F20)
-
 enum {
     VT_XWINDOWS, VT_OEMANSI, VT_OEMONLY, VT_POORMAN, VT_UNICODE
 };
@@ -2057,8 +2016,6 @@ void term_clrsb(Terminal *);
 void term_mouse(Terminal *, Mouse_Button, Mouse_Button, Mouse_Action,
                 int, int, bool, bool, bool);
 void term_cancel_selection_drag(Terminal *);
-void term_key(Terminal *, Key_Sym, wchar_t *, size_t, unsigned int,
-              unsigned int);
 void term_lost_clipboard_ownership(Terminal *, int clipboard);
 void term_update(Terminal *);
 void term_invalidate(Terminal *);