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CC-Tweaked/doc/events/mouse_up.md

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---
module: [kind=event] mouse_up
---
<!--
SPDX-FileCopyrightText: 2021 The CC: Tweaked Developers
SPDX-License-Identifier: LicenseRef-CCPL
-->
This event is fired when a mouse button is released or a held mouse leaves the computer's terminal.
## Return values
1. @{string}: The event name.
2. @{number}: The [mouse button](mouse_click.html#Mouse_buttons) that was released.
3. @{number}: The X-coordinate of the mouse.
4. @{number}: The Y-coordinate of the mouse.
## Example
Prints the coordinates and button number whenever the mouse is released.
```lua
while true do
local event, button, x, y = os.pullEvent("mouse_up")
print(("The mouse button %s was released at %d, %d"):format(button, x, y))
end
```