Keyboard handling patch from RDB: the Windows Application key is now

always Compose (we have no better use for it), and Ctrl-Alt can be
made to act like AltGr (but it's never Compose even when AltGr is).

[originally from svn r1033]

putty.h

@@ -205,6 +205,7 @@ typedef struct {
     int scroll_on_key;
     int scroll_on_disp;
     int compose_key;
+    int ctrlaltkeys;
     char wintitle[256];                /* initial window title */
     /* Terminal options */
     int savelines;