extern void wait_for_sync ();
extern BOOL parse_button ();
+
+/* Keypad command key support. Win32 doesn't have virtual keys defined
+ for the function keys on the keypad (they are mapped to the standard
+ fuction keys), so we define our own. */
+#define VK_NUMPAD_BEGIN 0x92
+#define VK_NUMPAD_CLEAR (VK_NUMPAD_BEGIN + 0)
+#define VK_NUMPAD_ENTER (VK_NUMPAD_BEGIN + 1)
+#define VK_NUMPAD_PRIOR (VK_NUMPAD_BEGIN + 2)
+#define VK_NUMPAD_NEXT (VK_NUMPAD_BEGIN + 3)
+#define VK_NUMPAD_END (VK_NUMPAD_BEGIN + 4)
+#define VK_NUMPAD_HOME (VK_NUMPAD_BEGIN + 5)
+#define VK_NUMPAD_LEFT (VK_NUMPAD_BEGIN + 6)
+#define VK_NUMPAD_UP (VK_NUMPAD_BEGIN + 7)
+#define VK_NUMPAD_RIGHT (VK_NUMPAD_BEGIN + 8)
+#define VK_NUMPAD_DOWN (VK_NUMPAD_BEGIN + 9)
+#define VK_NUMPAD_INSERT (VK_NUMPAD_BEGIN + 10)
+#define VK_NUMPAD_DELETE (VK_NUMPAD_BEGIN + 11)
+
+#ifndef VK_LWIN
+/* Older compiler environments don't have these defined. */
+#define VK_LWIN 0x5B
+#define VK_RWIN 0x5C
+#define VK_APPS 0x5D
+#endif