gui-win32: define Kdel in keyboard.h (thanks hiro)

gui-win32/screen.c

@@ -414,8 +414,7 @@ WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
 			kbdputc(kbdq, Kins);
 			break;
 		case VK_DELETE:
-//			kbdputc(kbdq, Kdel);
-			kbdputc(kbdq, 0x7f);	// should have Kdel in keyboard.h
+			kbdputc(kbdq, Kdel);
 			break;
 		case VK_UP:
 			kbdputc(kbdq, Kup);

include/keyboard.h

@@ -23,6 +23,7 @@ extern	void			closekeyboard(Keyboardctl*);
 
 enum {
     KF= 0xF000, /* Rune: beginning of private Unicode space */
+    Kdel=   0x7F,
     Spec=   0xF800,
     /* KF|1, KF|2, ..., KF|0xC is F1, F2, ..., F12 */
     Khome=  KF|0x0D,