yetangitu/GfxTablet
1
0
Fork 0
mirror of https://github.com/rfc2822/GfxTablet synced 2025-10-03 01:29:17 +02:00
Code Issues Releases Wiki Activity

Merge pull request #46 from techtonik/patch-1

Browse source 
Fix protocol description
This commit is contained in:
rfc2822 2014-01-06 12:27:35 -08:00
commit ff865c297b
1 changed files with 12 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

25
doc/protocol.txt
View file

@ -1,4 +1,3 @@
Network protocol used by GfxTablet
@ -8,21 +7,21 @@ Version 1
GfxTablet app sends UDP packets to port 40118 of the destination host.
Packet structure:
Packet structure, uses network byte order (big endian):
9 octets "GfxTablet"
1 ushort version number
1 ushort type:
0 motion event (hovering)
1 button event (finger, pen etc. touches surface)
9 bytes "GfxTablet"
1 word version number
1 byte type:
0 motion event (hovering)
1 button event (finger, pen etc. touches surface)
1 ushort x (using full range: 0..65535)
1 ushort y (using full range: 0..65535)
1 ushort pressure (using full range 0..65535, 32768 == pressure 1.0f on Android device)
1 word x (using full range: 0..65535)
1 word y (using full range: 0..65535)
1 word pressure (using full range 0..65535, 32768 == pressure 1.0f on Android device)
when type == button event:
when type == button event:
1 byte number of button, starting with 0
1 byte button status:
0 button is down
1 button is up
0 button is down
1 button is up