typedef void (*DviDevDestroy) __PROTO((void *data));
typedef void (*DviRefresh) __PROTO((DviContext *dvi, void *device_data));
typedef void (*DviSetColor) __PROTO((void *device_data, Ulong, Ulong));
typedef void (*DviDevDestroy) __PROTO((void *data));
typedef void (*DviRefresh) __PROTO((DviContext *dvi, void *device_data));
typedef void (*DviSetColor) __PROTO((void *device_data, Ulong, Ulong));