- int (*sendbuffer) (void);
- void (*size) (int width, int height);
- void (*special) (Telnet_Special code);
- Socket(*socket) (void);
- int (*exitcode) (void);
- int (*sendok) (void);
- int (*ldisc) (int);
+ int (*sendbuffer) (void *handle);
+ void (*size) (void *handle, int width, int height);
+ void (*special) (void *handle, Telnet_Special code);
+ Socket(*socket) (void *handle);
+ int (*exitcode) (void *handle);
+ int (*sendok) (void *handle);
+ int (*ldisc) (void *handle, int);