KWin is a window manager for the X Window System and a Wayland compositor.
It is released as a part of KDE Plasma 5, for which it is the default window manager. KWin can also be used on its own or with other desktop environments.
Wiki English | |
Developer(s) | KDE (Martin Grässlin, et al.) |
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Stable release | |
Repository | |
Written in | C++ (Qt) |
Operating system | Linux, BSD, other Unix-like |
Type | |
License | GNU General Public License |
Website | https://userbase.kde.org/KWin |
KWin can be configured by scripting using QML or QtScript, both of which are based on ECMAScript.
Name | Version | Details |
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KWM | 1.0 | |
KWin | 2.0 | Extended support for themes and window effects. |
3.0 | Improved support for the extended ICCCM standards from freedesktop.org. | |
4.0 | Compositing support and Compiz-like effects.[citation needed] | |
4.4 (02/2010) | Maximizing and tiling by snapping to the screen-edges, grouping and tabbing. | |
4.5 | Tiling. (removed in version 4.10) | |
4.9 | Incompatible API change. | |
4.11 | Last release based on KDE Platform 4. Experimental Wayland support. | |
5.0 | First release based on KDE Frameworks 5 and Qt 5. | |
5.12 | Released February 2018, KWin/X11 got feature frozen, meaning no new X11 specific features will be added. Martin Flöser stated that new features are easy and straight forward with the Wayland back-end, but require considerably more development to add the same feature to the X11 back-end. |
There are many window decorations for KWin, including the current default Breeze (shown below), the previous default Oxygen, Microsoft Windows-like Redmond, and Keramik.
Currently available compositing backends include OpenGL 1.2, OpenGL 2.0, OpenGL 3.1 and OpenGL ES 2.0.
As of KDE 4.3 the following effects are built-in:
Name | Description |
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Invert | Inverts the color of the desktop and windows |
Looking glass | A screen magnifier that looks like a fish eye lens |
Magnifier | Magnify the section of the screen that is near the mouse cursor |
Sharpen | Makes the entire desktop look sharper |
Snap Helper | Helps locate the centre of the screen when moving a window |
Track mouse | Display a mouse cursor locating effect when activated |
Zoom | Magnify the entire desktop |
Name | Description |
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Explosion | Make windows explode when they are closed |
Fade | Make windows smoothly fade in and out when they are shown or hidden |
Fade Desktop | Fade between virtual desktops when switching between them |
Fall apart | Close windows fall into pieces |
Highlight Windows | Highlight the appropriate window when hovering over taskbar entries |
Login | Smoothly fade to the desktop when logging in |
Logout | Desaturate the desktop when displaying the logout dialog |
Magic Lamp | Simulate a magic lamp when minimizing windows |
Minimize animation | Animate the minimizing of windows |
Mouse mark | Allows you to draw lines over your desktop |
Scale In | Animate the appearance of windows |
Sheet | Make modal dialogues smoothly fly in and out when shown or hidden |
Slide | Slide windows across the screen when switching virtual desktops |
Sliding popups | Sliding animation for Plasma Popups |
Taskbar Thumbnails | Display window thumbnails when hovering over taskbar entries |
Thumbnail aside | Display window thumbnails on the edge of the screen |
Translucency | Make windows translucent under different conditions |
Wobbly windows | Deform windows while they are moving |
Name | Description |
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Snow | Simulate snow falling on the desktop |
Name | Description |
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Dialog parent | Darkens the parent windows of the currently active dialogue |
Dim Inactive | Darken inactive windows |
Dim screen for administrator mode | Darkens the entire screen when requesting root privileges |
Slide Back | Slide back windows losing focus |
Name | Description |
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Show FPS | Show kwins performance in the corner of the screen |
Show Paint | Highlight areas of the desktop that have been recently updated |
Name | Description |
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Box switch | Removed in latest versions, no longer available. |
Cover switch | Removed in latest versions, no longer available. |
Desktop cube | Removed in latest versions, no longer available. |
Desktop Cube Animation | Removed in latest versions, no longer available. |
Desktop grid | Zoom out so all desktops are displayed side-by-side in a grid |
Flip switch | Removed in latest versions, no longer available. |
Present windows | Zoom out until open windows can be displayed side by side |
Resize Window | Effect to outline geometry while resizing a window |
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