Window capturing does not account for rounding

[Dolfost]

When capturing window it would look nice without the wallpaper (my wallpapers are just plain black) behind rounding and the active window line just like MacOS screenshot tool.

What I expect

What I get

[Dolfost]

I did some research an got to know that this is an wayland limitation. It only can capture square regions. Anyways, we can set rounding and border to 0, make out screenshot, and then set rounding and border back to it's original values. I am working on it for my own script. If it will come up with usable solution, I will try to open an PR.

[Dolfost]

So I wrote a little script to help me screenshot windows without borders (and unfortunately without rounding) and reset settings back:

#!/bin/bash
# take an screenshot of the active window without border and rounding
# takes directory argument where to save

ACTIVE_WIN=$(hyprctl activewindow -j)
if [[ -z "$ACTIVE_WIN" ]]; then
    echo "No active window found."
    exit 1
fi

X=$(jq -r '.at[0]' <<< "$ACTIVE_WIN")
Y=$(jq -r '.at[1]' <<< "$ACTIVE_WIN")
W=$(jq -r '.size[0]' <<< "$ACTIVE_WIN")
H=$(jq -r '.size[1]' <<< "$ACTIVE_WIN")

ROUNDING=$(hyprctl getoption decoration:rounding -j | jq -r '.int')
BORDER=$(hyprctl getoption general:border_size -j | jq -r '.int')

echo "Active window at $X,$Y size ${W}x${H}"
echo "Current rounding=$ROUNDING border=$BORDER"

hyprctl keyword decoration:rounding 0
hyprctl keyword general:border_size 0

sleep 0.1

OUTFILE="$1/window_$(date +%F_%H-%M-%S).png"

if command -v grim >/dev/null; then
    grim -g "${X},${Y} ${W}x${H}" "$OUTFILE"
elif command -v hyprshot >/dev/null; then
    hyprshot -o "$OUTFILE" -m region -r "${X},${Y},${W},${H}"
else
    echo "Error: neither grim nor hyprshot found."
fi

hyprctl keyword decoration:rounding "$ROUNDING"
hyprctl keyword general:border_size "$BORDER"

echo "Screenshot saved to: $OUTFILE"

notify-send -a screenshot -u low "  window saved at" $OUTFILE

[alonso-herreros]

I made a rewrite of Hyprshot called Hyprcap a few months ago, and I've also thought about implementing this exact feature (tracked in issue #8), but haven't tried that yet.

@Dolfost I'd like to take some inspiration from your script in the future if you don't mind (or you can even submit a PR yourself adding this feature)