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Help => Window => Topic started by: Wolf on June 23, 2015, 02:50:31 pm

Title: Problems regarding keyboard input
Post by: Wolf on June 23, 2015, 02:50:31 pm

I've run into a few problems regarding detecting keyboard input via the KeyPressed event.

• On the international English keyboard layout, that uses AltGr (the right Alt key) to input non-English characters (such as 'ä', 'å', etc), the right Alt key is detected as sf::Keyboard::Unknown rather than sf::Keyboard::RAlt. However, this works fine on the standard US layout.
• The numpad number keys do not work regardless of the keyboard layout, whether num lock is enabled or not. They all return sf::Keyboard::Unknown.
• Switching between keyboard layouts while the game is open does not work, and trying to do so produces the following output (only once):
  
  Quote

  X Extensions:
     Generic Event Extension - First event: 0
     SHAPE - First event: 64
     MIT-SHM - First event: 65
     XInputExtension - First event: 66
     XTEST - First event: 0
     BIG-REQUESTS - First event: 0
     SYNC - First event: 83
     XKEYBOARD - First event: 85
     XC-MISC - First event: 0
     SECURITY - First event: 86
     XFIXES - First event: 87
     RENDER - First event: 0
     RANDR - First event: 89
     XINERAMA - First event: 0
     Composite - First event: 0
     DAMAGE - First event: 91
     MIT-SCREEN-SAVER - First event: 92
     DOUBLE-BUFFER - First event: 0
     RECORD - First event: 0
     DPMS - First event: 0
     Present - First event: 0
     DRI3 - First event: 0
     X-Resource - First event: 0
     XVideo - First event: 93
     XVideo-MotionCompensation - First event: 0
     XFree86-VidModeExtension - First event: 0
     XFree86-DGA - First event: 95
     DRI2 - First event: 102
     GLX - First event: 104
     SGI-GLX - First event: 104
  Unhandled event type: 85
  Report this to the SFML maintainers if possible
• On layouts that use scripts other than Latin (such as Greek, Ukrainian, etc) any letter keys return sf::Keyboard::Unknown, while in my opinion they should return the keys corresponding to the US layout. For example pressing the 'ц' key on the Ukrainian layout should return sf::Keyboard::W, because the 'ц' key is located at the same key as the US 'w'.

I'm using Linux, Xubuntu 14.04, with IBus for multilingual input.

Title: Re: Problems regarding keyboard input
Post by: binary1248 on June 23, 2015, 04:30:08 pm

Quote from: Wolf on June 23, 2015, 02:50:31 pm

On the international English keyboard layout, that uses AltGr (the right Alt key) to input non-English characters (such as 'ä', 'å', etc), the right Alt key is detected as sf::Keyboard::Unknown rather than sf::Keyboard::RAlt. However, this works fine on the standard US layout.

Will have to look into this.

Quote from: Wolf on June 23, 2015, 02:50:31 pm

The numpad number keys do not work regardless of the keyboard layout, whether num lock is enabled or not. They all return sf::Keyboard::Unknown.

#910 (https://github.com/SFML/SFML/pull/910)

Quote from: Wolf on June 23, 2015, 02:50:31 pm

Switching between keyboard layouts while the game is open does not work, and trying to do so produces the following output (only once):

#895 (https://github.com/SFML/SFML/issues/895), #897 (https://github.com/SFML/SFML/pull/897)

Quote from: Wolf on June 23, 2015, 02:50:31 pm

On layouts that use scripts other than Latin (such as Greek, Ukrainian, etc) any letter keys return sf::Keyboard::Unknown, while in my opinion they should return the keys corresponding to the US layout. For example pressing the 'ц' key on the Ukrainian layout should return sf::Keyboard::W, because the 'ц' key is located at the same key as the US 'w'.

#7 (https://github.com/SFML/SFML/issues/7), http://en.sfml-dev.org/forums/index.php?topic=13692.0

Title: Re: Problems regarding keyboard input
Post by: binary1248 on July 14, 2015, 02:08:11 pm

The issue with sf::Keyboard::RAlt should be fixed in #922 (https://github.com/SFML/SFML/pull/922).