convM2W, convW2M, drawfcallfmt, readwsysmsg, sizeW2M - window system protocol
#include <u.h>
#include <libc.h>
#include <draw.h>
#include <mouse.h>
#include <cursor.h>
#include <drawfcall.h>
uint convM2W(uchar *ap, uint nap, Wsysmsg *w)
uint convW2M(Wsysmsg *w, uchar *ap, uint nap)
int drawfcallfmt(Fmt*)
int readwsysmsg(int fd, uchar *buf, uint nbuf)
uint sizeW2M(Wsysmsg *w)
These routines are analogues of the routines described in They manipulate
graphics device protocol messages rather than 9P protocol messages. The
graphics device protocol is used for internal communication between the
graphics server and the library. A Wsysmsg is the C structure
corresponding to a protocol message.
The protocol is intentionally undocumented and may change.