SDL_HINT_KEYCODE_OPTIONS - Man Page

A variable that controls keycode representation in keyboard events.

Header File

Defined in SDL3/SDL_hints.h

Synopsis

#include "SDL3/SDL.h"

#define SDL_HINT_KEYCODE_OPTIONS SDL_KEYCODE_OPTIONS"

Description

This variable is a comma separated set of options for translating keycodes in events:

· "none": Keycode options are cleared, this overrides other options.

· "hide_numpad": The numpad keysyms will be translated into their
 non-numpad versions based on the current NumLock state. For example,
  SDLK_KP_4
would become SDLK_4
if
  SDL_KMOD_NUM
is set in the event modifiers, and
  SDLK_LEFT
if it is unset.

· "french_numbers": The number row on French keyboards is inverted, so
 pressing the 1 key would yield the keycode SDLK_1 , or '1',
 instead of SDLK_AMPERSAND , or '&'

· "latin_letters": For keyboards using non-Latin letters, such as Russian
 or Thai, the letter keys generate keycodes as though it had an en_US
 layout. e.g. pressing the key associated with
  SDL_SCANCODE_A
on a Russian keyboard would yield 'a'
 instead of a Cyrillic letter.

The default value for this hint is "french_numbers,latin_letters"

Some platforms like Emscripten only provide modified keycodes and the options are not used.

These options do not affect the return value of

SDL_GetKeyFromScancode () or

SDL_GetScancodeFromKey (), they just apply to the keycode included in key events.

This hint can be set anytime.

Availability

This hint is available since SDL 3.2.0.

Referenced By

SDL_KeyboardEvent.3type(3).

SDL 3.2.2 Simple Directmedia Layer SDL3 FUNCTIONS