Most of a Windows front end. Something's not _quite_ right in the

GDI - there are blobs in the middle of powered lines in Net. But
it's 99% there now.

[originally from svn r4156]

puzzles.h

@@ -24,7 +24,7 @@ enum {
     CURSOR_RIGHT
 };
 
-#define IGNORE(x) ( (x) = (x) )
+#define IGNOREARG(x) ( (x) = (x) )
 
 typedef struct frontend frontend;
 typedef struct midend_data midend_data;