hyprland-wiki/pages/IPC/_index.md
2022-08-12 21:02:50 +02:00

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Hyprland exposes 2 UNIX Sockets, for controlling / getting info about Hyprland
via code / bash utilities.
## Hyprland Instance Signature (HIS)
```
echo $HYPRLAND_INSTANCE_SIGNATURE
```
# /tmp/hypr/\[HIS\]/.socket.sock
Used for hyprctl-like requests. See the
[Hyprctl page](https://github.com/hyprwm/Hyprland/wiki/Using-hyprctl) for
commands.
basically, write `command args`.
# /tmp/hypr/\[HIS\]/.socket2.sock
Used for events. Hyprland will write to each connected client live events like
this:
`EVENT>>DATA\n` (\\n is a linebreak)
e.g.: `workspace>>2`
## Events list:
### workspace
emitted on workspace change. Is emitted ONLY when a user requests a workspace
change, and is not emitted on mouse movements (see `activemon`)
Data: WORKSPACENAME
### focusedmon
emitted on the active monitor being changed.
Data: MONNAME,WORKSPACENAME
### activewindow
emitted on the active window being changed.
Data: WINDOWCLASS,WINDOWTITLE
### fullscreen
emitted when a fullscreen status of a window changes.
Warning: a fullscreen event is not guaranteed to fire on/off once in succession.
A window might do for example 3 requests to be fullscreen'd, which would result
in 3 fullscreen events.
Data: 0/1 (exit fullscreen / enter fullscreen)
### monitorremoved
emitted when a monitor is removed (disconnected)
Data: MONITORNAME
### monitoradded
emitted when a monitor is added (connected)
Data: MONITORNAME
### createworkspace and destroyworkspace
emitted when a workspace is created or removed
Data: WORKSPANCENAME
## How to use socket2 with bash
example script using socket2 events with bash and `socat`:
```
#!/bin/sh
function handle {
if [[ ${1:0:12} == "monitoradded" ]]; then
# do_something
fi
}
socat - UNIX-CONNECT:/tmp/hypr/$(echo $HYPRLAND_INSTANCE_SIGNATURE)/.socket2.sock | while read line; do handle $line; done
```