.TH DEVDRAW 1 .SH NAME devdraw \- draw device simulator .SH SYNOPSIS invoked via .I initdraw (see .MR graphics (3) ) .SH DESCRIPTION .I Devdraw serves a custom graphics protocol and is the only program that talks directly to X window servers. On Macintosh, setting .BI devdrawretina to .BI 1 will cause .I devdraw to use all available physical pixels on a retina display. .SH SOURCE .B \*9/src/cmd/devdraw .SH "SEE ALSO .MR draw (3) , .MR drawfcall (3) , .MR graphics (3) .SH BUGS .I Devdraw should probably present a standard 9P server instead of using its own protocol.