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Windowed full-screen is preferable because it allows quick alt-tabbing without hiding the game display (which is nice with two monitors). How is the setting enabled?

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windowed full screen? do you mean -noborder? – Simon Sheehan Jun 27 '11 at 22:52
@Simon I'm not sure what you mean by -noborder. I would try passing it as an argument to the client, but there is a separate launcher for it. – Dave Andersen Jun 28 '11 at 13:35
Steam has it, and if you launch a game through steam you can use -noborder and then -w and -h to specify height and width – Simon Sheehan Jun 28 '11 at 13:41
@SimonSheehan That only applies to games that use the Source engine. – mkarasek Jun 28 '11 at 19:44
up vote 11 down vote accepted

I never played LoL, but, according to a quick google search, there are two ways:

  1. Run the game in windowed mode, set the resolution so that it matches exactly your desktop resolution, then hide the window borders using ShiftWindow.
  2. Put BorderlessWindow=1 in your Config\gam‌​e.cfg and you should have no need for ShiftWindow. (source)

Again, I never played League of Legends, I just googled this information and have no idea if any of this will work.

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I do play LoL, and can second this answer. In fact, with a duel-monitor setup myself, I just use step 1, but I guess removing the border would give you the extra like ten pixels on top, I suppose. – Ketura Jun 28 '11 at 8:07
ShiftWindow looks interesting, but I prefer using the configuration method. The path you listed does not seem correct, but making the change to this file seems to work: C:\Riot Games\League of Legends\RADS\solutions\lol_game_client_sln\releases\\deploy\DATA\CFG\gam‌​e.cfg Hopefully the location doesn't change when the version number changes. If you update your answer, I will accept it. – Dave Andersen Jun 28 '11 at 13:57
Done. Glad I could help. :) – Ludonaut Jun 28 '11 at 15:00
No longer valid. See answer by Angel Neev. New location: C:\Riot Games\League of Legends\Config\game.cfg set windowed = 1, borderlesswindow = 1 – Lemmings19 Dec 10 '12 at 6:14

The new location is C:\Riot Games\League of Legends\Config. Search there for the game.cfg file and change:

  • Windowed from 0 to 1
  • BorderlessWindow from 0 to 1
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Verified current and working Dec. 9, 2012. – Lemmings19 Dec 10 '12 at 6:13

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