You can change the default hotkey if it is already used in the game. Some games run with elevated rights so hotkeys tracking may not work. In such cases, consider running this app as an administrator (run second launch option in Steam or create new shortcut with -admin parameter) or use the "Scale In 5 sec." button.
Useful if hotkey doesn't work with your game. Click the button and activate the game window within 5 seconds. To unscale a game, simply minimize by Alt-Tab combination and click the "Unscale" button.
Calculates the maximum integer scale factor that can be used to fit the game on the screen. If you do not need the use of a non-integer scale factor or the "Force Resolution" option, you can use this option in order not to calculate the scale factor every time.
Set the desired scale factor. The most commonly used value is '2'. It is well suited for games running full HD resolution on a 4k display or old games running on a full HD display.
Larger values are suitable for low resolution games and displays with large resolutions.
Value '1.5', although not integer, can be useful if the game does not fit on the screen when scaled 2.0x.
The value '1' means no scaling. Choose it if you just want to make game borderless with black bars around it.
You can also select a custom scaling factor. But keep in mind that using non-integer values may result in image distortion.
In some situations, you can use a larger integer scale factor to fill the screen more, but the game may slightly exceed the height of the screen. With the alignment option you can decide which part of the image will be cropped.
This setting changes the resolution of the game so that when it scales, it takes up full screen.
Useful for games that do not allow to set the resolution while in windowed mode (mostly modern games).
Not suitable for games that have fixed resolution (mostly old games).
This setting enables fullscreen anti-aliasing. Affects performance. It is recommended to turn off anti-aliasing in the game if you enable this setting.
It is recommended to leave this option enabled to prevent the cursor from leaving the game window. This setting is useful if you have multiple displays and you want to use the system on other monitors while you are playing.
Takes cursor speed into account. Decreases the mouse sensitivity so that the mouse speed corresponds to normal.
This setting is useful for old games where the mouse is not used.
Enables support for multiple displays (you can use the other displays while you play). In this case, it does not force vertical sync, so you may want to enable it in the game. Multiple display support is implemented through a different API and is slower. You may not notice it, but it is recommended not to enable it for modern 3D games.
Lossless Scaling v. 1.2.6 Demo