Graphics and video
Resolutions
Video settings
Hardware
For a list of games, see games with borderless fullscreen windowed support.
Key points
Borderless fullscreen windowed refers to a mode where the game presents the rendered image in a maximized window without borders making it cover the whole monitor. This is opposed to a regular window that uses window decorations around the contents of the window, or fullscreen exclusive mode where the game takes control over the output device and where each application switch required a display mode switch to occur.
This feature is known by a lot of different names between games, such as borderless mode, maximized window, fullscreen window, or any combination thereof. Some titles might also refer to it using less common names, such as scaling or even fullscreen if the game does not support exclusive fullscreen mode.
Notes
forceBorderlessFullscreen false
#UseHook On F12:: WinGet, WindowID, ID, A WinSet, Style, -0xC40000, ahk_id %WindowID% WinMove, ahk_id %WindowID%, , 0, 0, A_ScreenWidth, A_ScreenHeight Return
5. Push F12 while in a game in order to activate the script.
#UseHook On F12:: WinGet, TempWindowID, ID, A If (WindowID != TempWindowID) { WindowID:=TempWindowID WindowState:=0 } If (WindowState != 1) { WinGetPos, WinPosX, WinPosY, WindowWidth, WindowHeight, ahk_id %WindowID% WinSet, Style, -0xC40000, ahk_id %WindowID% WinMove, ahk_id %WindowID%, , 0, 0, A_ScreenWidth, A_ScreenHeight ;Hide Windows Task Bar and Start Button. (Remove the following two lines if you don't want that behaviour) WinHide ahk_class Shell_TrayWnd WinHide Start ahk_class Button } Else { WinSet, Style, +0xC40000, ahk_id %WindowID% WinMove, ahk_id %WindowID%, , WinPosX, WinPosY, WindowWidth, WindowHeight ;Show the task bar again WinShow ahk_class Shell_TrayWnd WinShow Start ahk_class Button } WindowState:=!WindowState return
WinMove, ahk_id %WindowID%, , 0, 0, A_ScreenWidth, A_ScreenHeight
3840x1080
WinMove, ahk_id %WindowID%, , 1920, 0, 1920, 1080
Devices > Keyboard > Windows
Shortcuts > Global Shortcuts > Kwin
Hardware > Keyboard Shortcuts > Window Management
Hardware > Keyboard > Shortcuts > Windows
Another tip that exclusively works on Linux is running your game in a separate X server instance. This allows you to switch between your game and your desktop using Ctrl+Alt+F7 and Ctrl+Alt+F8 (buttons may differ, may be F1 through F12) and it increases performance and stability. To do this, edit the launch options for your game on Steam as follows:
xinit %command% :1
-windowed -noborder
-popupwindow