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-->Sets the keyboard focus to the specified window. The window must be attached to the calling thread's message queue.
hWnd
Type: HWND
A handle to the window that will receive the keyboard input. If this parameter is NULL, keystrokes are ignored.
Type: HWND
If the function succeeds, the return value is the handle to the window that previously had the keyboard focus. If the hWnd parameter is invalid or the window is not attached to the calling thread's message queue, the return value is NULL. To get extended error information, call GetLastError function.
This function sends a WM_KILLFOCUS message to the window that loses the keyboard focus and a WM_SETFOCUS message to the window that receives the keyboard focus. It also activates either the window that receives the focus or the parent of the window that receives the focus.
If a window is active but does not have the focus, any key pressed produces the WM_SYSCHAR, WM_SYSKEYDOWN, or WM_SYSKEYUP message. If the VK_MENU key is also pressed, bit 30 of the lParam Exifeditor 1 1 14. parameter of the message is set. Otherwise, the messages produced do not have this bit set.
By using the AttachThreadInput function, a thread can attach its input processing to another thread. This allows a thread to call SetFocus to set the keyboard focus to a window attached to another thread's message queue.
For an example, see Initializing a Dialog Box.
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | winuser.h (include Windows.h) |
| Library | User32.lib |
| DLL | User32.dll |
| API set | ext-ms-win-ntuser-window-l1-1-4 (introduced in Windows 10, version 10.0.14393) |
AttachThreadInput function, GetFocus function, WM_KILLFOCUS, WM_SETFOCUS, WM_SYSCHAR, WM_SYSKEYDOWN, WM_SYSKEYUP, Keyboard Input
| Developer(s) | KDE (Martin Grässlin, et al.) |
|---|---|
| Stable release | 5.20.1 (20 October 2020; 1 day ago) [±][1] |
| Preview release | 5.20 Beta (16 September 2020; 35 days ago) [±][2] |
| 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 is a window manager for the X Window System and also becoming a Wayland compositor.[3][4] It is released as 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.
KWin can be configured by scripting using QML or QtScript, both of which are based on ECMAScript.[5]
| Name | Version | Details |
|---|---|---|
| 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.[6] | |
| 4.5 | Tiling.[7] (removed in version 4.10) | |
| 4.9 | Incompatible API change.[8] | |
| 4.11 | Last release based on KDE Platform 4. Experimental Wayland support.[9] | |
| 5.0 | First release based on KDE Frameworks 5 and Qt 5.[10] | |
| 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.[11] |
There are many window decorations for KWin, including the current default Breeze (shown below), the previous default Oxygen, Microsoft Windows-like Redmond, and Keramik. https://downcfiles762.weebly.com/can-you-win-real-money-on-house-of-fun-slots.html.
Currently available compositing backends include XRender, OpenGL 1.2, OpenGL 2.0, OpenGL 3.1[12] and OpenGL ES 2.0.[13] Play online video slots for free.
As of KDE 4.3 the following effects are built-in:
| Name | Description |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| Snow | Simulate snow falling on the desktop |
| Name | Description |
|---|---|
| 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 |
|---|---|
| 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 |
|---|---|
| Box switch | Display thumbnails of windows in the alt+tab window switcher |
| Cover switch | Apply a Cover Flow-like effect to the alt+tab window switcher |
| Desktop cube | Present each desktop as the facet of a cube |
| Desktop Cube Animation | Animate desktop switching with a cube |
| Desktop grid | Zoom out so all desktops are displayed side-by-side in a grid |
| Flip switch | Flip through windows that are in a stack for the alt+tab window switcher |
| 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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