| .TH DRAWFCALL 3 |
| .SH NAME |
| convM2W, convW2M, drawfcallfmt, readwsysmsg, sizeW2M \- window system protocol |
| .SH SYNOPSIS |
| .nf |
| .PP |
| .ft L |
| #include <u.h> |
| #include <libc.h> |
| #include <draw.h> |
| #include <mouse.h> |
| #include <cursor.h> |
| #include <drawfcall.h> |
| .ft P |
| .ta \w'\fLuint 'u |
| .PP |
| .B |
| uint convM2W(uchar *ap, uint nap, Wsysmsg *w) |
| .PP |
| .B |
| uint convW2M(Wsysmsg *w, uchar *ap, uint nap) |
| .PP |
| .B |
| int drawfcallfmt(Fmt*) |
| .PP |
| .B |
| int readwsysmsg(int fd, uchar *buf, uint nbuf) |
| .PP |
| .B |
| uint sizeW2M(Wsysmsg *w) |
| .SH DESCRIPTION |
| These routines are analogues of the routines described in |
| .IR fcall (3). |
| They manipulate graphics device protocol messages |
| rather than 9P protocol messages. |
| The graphics device protocol is used for internal |
| communication between the |
| .IR devdraw (1) |
| graphics server |
| and the |
| .IR draw (3) |
| library. |
| A |
| .B Wsysmsg |
| is the C structure corresponding to a protocol message. |
| .PP |
| The protocol is intentionally undocumented and may change. |
| .SH SOURCE |
| .B \*9/src/libdraw/drawfcall.c |
| .SH SEE ALSO |
| .IR devdraw (1), |
| .IR draw (3), |
| .IR graphics (3) |
