From e8f72c90f32c94d5836710a41e2a9a88be808f1a Mon Sep 17 00:00:00 2001 From: Kovid Goyal Date: Wed, 4 Oct 2017 23:25:27 +0530 Subject: [PATCH] Add note about needing S key for PNG + compression --- graphics-protocol.asciidoc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/graphics-protocol.asciidoc b/graphics-protocol.asciidoc index f36000cd5..a3a182cbc 100644 --- a/graphics-protocol.asciidoc +++ b/graphics-protocol.asciidoc @@ -87,7 +87,8 @@ In this format any PNG image can be transmitted directly. For example: ``` The PNG format is specified using the `f=100` key. The width and height of -the image will be read from the PNG data itself. +the image will be read from the PNG data itself. Note that if you use both PNG and +compression, then you must provide the `S` key with the size of the PNG data. === Compression