Module Sdlkey

module Sdlkey: sig .. end

Keyboard handling and key symbols

Keysyms

type t =

`\|`	`KEY_UNKNOWN`
`\|`	`KEY_BACKSPACE`
`\|`	`KEY_TAB`
`\|`	`KEY_CLEAR`
`\|`	`KEY_RETURN`
`\|`	`KEY_PAUSE`
`\|`	`KEY_ESCAPE`
`\|`	`KEY_SPACE`
`\|`	`KEY_EXCLAIM`
`\|`	`KEY_QUOTEDBL`
`\|`	`KEY_HASH`
`\|`	`KEY_DOLLAR`
`\|`	`KEY_AMPERSAND`
`\|`	`KEY_QUOTE`
`\|`	`KEY_LEFTPAREN`
`\|`	`KEY_RIGHTPAREN`
`\|`	`KEY_ASTERISK`
`\|`	`KEY_PLUS`
`\|`	`KEY_COMMA`
`\|`	`KEY_MINUS`
`\|`	`KEY_PERIOD`
`\|`	`KEY_SLASH`
`\|`	`KEY_0`
`\|`	`KEY_1`
`\|`	`KEY_2`
`\|`	`KEY_3`
`\|`	`KEY_4`
`\|`	`KEY_5`
`\|`	`KEY_6`
`\|`	`KEY_7`
`\|`	`KEY_8`
`\|`	`KEY_9`
`\|`	`KEY_COLON`
`\|`	`KEY_SEMICOLON`
`\|`	`KEY_LESS`
`\|`	`KEY_EQUALS`
`\|`	`KEY_GREATER`
`\|`	`KEY_QUESTION`
`\|`	`KEY_AT`	`(*`	Skip uppercase letters	`*)`
`\|`	`KEY_LEFTBRACKET`
`\|`	`KEY_BACKSLASH`
`\|`	`KEY_RIGHTBRACKET`
`\|`	`KEY_CARET`
`\|`	`KEY_UNDERSCORE`
`\|`	`KEY_BACKQUOTE`
`\|`	`KEY_a`
`\|`	`KEY_b`
`\|`	`KEY_c`
`\|`	`KEY_d`
`\|`	`KEY_e`
`\|`	`KEY_f`
`\|`	`KEY_g`
`\|`	`KEY_h`
`\|`	`KEY_i`
`\|`	`KEY_j`
`\|`	`KEY_k`
`\|`	`KEY_l`
`\|`	`KEY_m`
`\|`	`KEY_n`
`\|`	`KEY_o`
`\|`	`KEY_p`
`\|`	`KEY_q`
`\|`	`KEY_r`
`\|`	`KEY_s`
`\|`	`KEY_t`
`\|`	`KEY_u`
`\|`	`KEY_v`
`\|`	`KEY_w`
`\|`	`KEY_x`
`\|`	`KEY_y`
`\|`	`KEY_z`
`\|`	`KEY_DELETE`	`(*`	End of ASCII mapped keysyms	`*)`
`\|`	`KEY_WORLD_0`	`(*`	International keyboard syms	`*)`
`\|`	`KEY_WORLD_1`
`\|`	`KEY_WORLD_2`
`\|`	`KEY_WORLD_3`
`\|`	`KEY_WORLD_4`
`\|`	`KEY_WORLD_5`
`\|`	`KEY_WORLD_6`
`\|`	`KEY_WORLD_7`
`\|`	`KEY_WORLD_8`
`\|`	`KEY_WORLD_9`
`\|`	`KEY_WORLD_10`
`\|`	`KEY_WORLD_11`
`\|`	`KEY_WORLD_12`
`\|`	`KEY_WORLD_13`
`\|`	`KEY_WORLD_14`
`\|`	`KEY_WORLD_15`
`\|`	`KEY_WORLD_16`
`\|`	`KEY_WORLD_17`
`\|`	`KEY_WORLD_18`
`\|`	`KEY_WORLD_19`
`\|`	`KEY_WORLD_20`
`\|`	`KEY_WORLD_21`
`\|`	`KEY_WORLD_22`
`\|`	`KEY_WORLD_23`
`\|`	`KEY_WORLD_24`
`\|`	`KEY_WORLD_25`
`\|`	`KEY_WORLD_26`
`\|`	`KEY_WORLD_27`
`\|`	`KEY_WORLD_28`
`\|`	`KEY_WORLD_29`
`\|`	`KEY_WORLD_30`
`\|`	`KEY_WORLD_31`
`\|`	`KEY_WORLD_32`
`\|`	`KEY_WORLD_33`
`\|`	`KEY_WORLD_34`
`\|`	`KEY_WORLD_35`
`\|`	`KEY_WORLD_36`
`\|`	`KEY_WORLD_37`
`\|`	`KEY_WORLD_38`
`\|`	`KEY_WORLD_39`
`\|`	`KEY_WORLD_40`
`\|`	`KEY_WORLD_41`
`\|`	`KEY_WORLD_42`
`\|`	`KEY_WORLD_43`
`\|`	`KEY_WORLD_44`
`\|`	`KEY_WORLD_45`
`\|`	`KEY_WORLD_46`
`\|`	`KEY_WORLD_47`
`\|`	`KEY_WORLD_48`
`\|`	`KEY_WORLD_49`
`\|`	`KEY_WORLD_50`
`\|`	`KEY_WORLD_51`
`\|`	`KEY_WORLD_52`
`\|`	`KEY_WORLD_53`
`\|`	`KEY_WORLD_54`
`\|`	`KEY_WORLD_55`
`\|`	`KEY_WORLD_56`
`\|`	`KEY_WORLD_57`
`\|`	`KEY_WORLD_58`
`\|`	`KEY_WORLD_59`
`\|`	`KEY_WORLD_60`
`\|`	`KEY_WORLD_61`
`\|`	`KEY_WORLD_62`
`\|`	`KEY_WORLD_63`
`\|`	`KEY_WORLD_64`
`\|`	`KEY_WORLD_65`
`\|`	`KEY_WORLD_66`
`\|`	`KEY_WORLD_67`
`\|`	`KEY_WORLD_68`
`\|`	`KEY_WORLD_69`
`\|`	`KEY_WORLD_70`
`\|`	`KEY_WORLD_71`
`\|`	`KEY_WORLD_72`
`\|`	`KEY_WORLD_73`
`\|`	`KEY_WORLD_74`
`\|`	`KEY_WORLD_75`
`\|`	`KEY_WORLD_76`
`\|`	`KEY_WORLD_77`
`\|`	`KEY_WORLD_78`
`\|`	`KEY_WORLD_79`
`\|`	`KEY_WORLD_80`
`\|`	`KEY_WORLD_81`
`\|`	`KEY_WORLD_82`
`\|`	`KEY_WORLD_83`
`\|`	`KEY_WORLD_84`
`\|`	`KEY_WORLD_85`
`\|`	`KEY_WORLD_86`
`\|`	`KEY_WORLD_87`
`\|`	`KEY_WORLD_88`
`\|`	`KEY_WORLD_89`
`\|`	`KEY_WORLD_90`
`\|`	`KEY_WORLD_91`
`\|`	`KEY_WORLD_92`
`\|`	`KEY_WORLD_93`
`\|`	`KEY_WORLD_94`
`\|`	`KEY_WORLD_95`
`\|`	`KEY_KP0`	`(*`	Numeric keypad	`*)`
`\|`	`KEY_KP1`
`\|`	`KEY_KP2`
`\|`	`KEY_KP3`
`\|`	`KEY_KP4`
`\|`	`KEY_KP5`
`\|`	`KEY_KP6`
`\|`	`KEY_KP7`
`\|`	`KEY_KP8`
`\|`	`KEY_KP9`
`\|`	`KEY_KP_PERIOD`
`\|`	`KEY_KP_DIVIDE`
`\|`	`KEY_KP_MULTIPLY`
`\|`	`KEY_KP_MINUS`
`\|`	`KEY_KP_PLUS`
`\|`	`KEY_KP_ENTER`
`\|`	`KEY_KP_EQUALS`
`\|`	`KEY_UP`	`(*`	Arrows + Home/End pad	`*)`
`\|`	`KEY_DOWN`
`\|`	`KEY_RIGHT`
`\|`	`KEY_LEFT`
`\|`	`KEY_INSERT`
`\|`	`KEY_HOME`
`\|`	`KEY_END`
`\|`	`KEY_PAGEUP`
`\|`	`KEY_PAGEDOWN`
`\|`	`KEY_F1`	`(*`	Function keys	`*)`
`\|`	`KEY_F2`
`\|`	`KEY_F3`
`\|`	`KEY_F4`
`\|`	`KEY_F5`
`\|`	`KEY_F6`
`\|`	`KEY_F7`
`\|`	`KEY_F8`
`\|`	`KEY_F9`
`\|`	`KEY_F10`
`\|`	`KEY_F11`
`\|`	`KEY_F12`
`\|`	`KEY_F13`
`\|`	`KEY_F14`
`\|`	`KEY_F15`
`\|`	`KEY_NUMLOCK`	`(*`	Key state modifier keys	`*)`
`\|`	`KEY_CAPSLOCK`
`\|`	`KEY_SCROLLOCK`
`\|`	`KEY_RSHIFT`
`\|`	`KEY_LSHIFT`
`\|`	`KEY_RCTRL`
`\|`	`KEY_LCTRL`
`\|`	`KEY_RALT`
`\|`	`KEY_LALT`
`\|`	`KEY_RMETA`
`\|`	`KEY_LMETA`
`\|`	`KEY_LSUPER`	`(*`	Left "Windows" key	`*)`
`\|`	`KEY_RSUPER`	`(*`	Right "Windows" key	`*)`
`\|`	`KEY_MODE`	`(*`	"Alt Gr" key	`*)`
`\|`	`KEY_COMPOSE`	`(*`	Multi-key compose key	`*)`
`\|`	`KEY_HELP`	`(*`	Miscellaneous function keys	`*)`
`\|`	`KEY_PRINT`
`\|`	`KEY_SYSREQ`
`\|`	`KEY_BREAK`
`\|`	`KEY_MENU`
`\|`	`KEY_POWER`	`(*`	Power Macintosh power key	`*)`
`\|`	`KEY_EURO`	`(*`	Some european keyboards	`*)`
`\|`	`KEY_UNDO`	`(*`	Atari keyboard has Undo	`*)`

Concrete type describing keyboard keys ("keysym")

val int_of_key : t -> int

get the SDL keysym of the key

val key_of_int : int -> t

get the key corresponding to a SDL keysym
Raises Invalid_arg if not a valid SDL keysym

val char_of_key : t -> char

Returns a (iso-8859-1) character corresponding to a key
Raises Invalid_arg if corresponding SDL keysym is > 255

val num_keys : int

number of keys in the Sdlkey.t variant type : should be 232

val max_code : int

highest SDL keysym : should be 322

val name : t -> string

Returns a short string describing the key

Keyboard handling

val enable_unicode : bool -> unit

Enable unicode translation of keysyms for keyboard events

val query_unicode : unit -> bool

val disable_key_repeat : unit -> unit

Disable keyboard repeat

val enable_key_repeat : ?delay:int -> ?interval:int -> unit -> unit

Enable keyboard repeat

delay : initial delay in ms between the time when a key is pressed, and keyboard repeat begins

interval : the time in ms between keyboard repeat events

val get_key_state : unit ->
       (int, Bigarray.int8_unsigned_elt, Bigarray.c_layout) Bigarray.Array1.t

Get a snapshot of the current state of the keyboard.
Returns an array of keystates, indexed by the SDL keysyms (cf Sdlkey.int_of_key)

val is_key_pressed : t -> bool

Checks wether a key is currently pressed on the keyboard.

Key modifiers

type mod_state = int

The following values are flags. Use with land, lor, etc.

val kmod_none : mod_state

val kmod_lshift : mod_state

val kmod_rshift : mod_state

val kmod_lctrl : mod_state

val kmod_rctrl : mod_state

val kmod_lalt : mod_state

val kmod_ralt : mod_state

val kmod_lmeta : mod_state

val kmod_rmeta : mod_state

val kmod_num : mod_state

val kmod_caps : mod_state

val kmod_mode : mod_state

val kmod_ctrl : mod_state

val kmod_shift : mod_state

val kmod_alt : mod_state

val kmod_meta : mod_state

val get_mod_state : unit -> mod_state

Get the current key modifier state

val set_mod_state : mod_state -> unit

Set the current key modifier state This does not change the keyboard state, only the key modifier flags.