1 .TH DRAWFCALL 3
2 .SH NAME
3 convM2W, convW2M, drawfcallfmt, readwsysmsg, sizeW2M \- window system protocol
4 .SH SYNOPSIS
5 .nf
6 .PP
7 .ft L
8 #include <u.h>
9 #include <libc.h>
10 #include <draw.h>
11 #include <mouse.h>
12 #include <cursor.h>
13 #include <drawfcall.h>
14 .ft P
15 .ta \w'\fLuint 'u
16 .PP
17 .B
18 uint	convM2W(uchar *ap, uint nap, Wsysmsg *w)
19 .PP
20 .B
21 uint	convW2M(Wsysmsg *w, uchar *ap, uint nap)
22 .PP
23 .B
24 int	drawfcallfmt(Fmt*)
25 .PP
26 .B
27 int	readwsysmsg(int fd, uchar *buf, uint nbuf)
28 .PP
29 .B
30 uint	sizeW2M(Wsysmsg *w)
31 .SH DESCRIPTION
32 These routines are analogues of the routines described in 
33 .MR fcall (3) .
34 They manipulate graphics device protocol messages
35 rather than 9P protocol messages.
36 The graphics device protocol is used for internal 
37 communication between the
38 .MR devdraw (1)
39 graphics server
40 and the
41 .MR draw (3)
42 library.
43 A
44 .B Wsysmsg
45 is the C structure corresponding to a protocol message.
46 .PP
47 The protocol is intentionally undocumented and may change.
48 .SH SOURCE
49 .B \*9/src/libdraw/drawfcall.c
50 .SH SEE ALSO
51 .MR devdraw (1) ,
52 .MR draw (3) ,
53 .MR graphics (3)