SDL.Init

Documentation

initialize :: (Foldable f, Functor m, MonadIO m) => f InitFlag -> m ()

Initializes SDL and the given subsystems. Do not call any SDL functions prior to this one, unless otherwise documented that you may do so.

You may call this function again with additional subsystems to initialize.

Throws SDLException if initialization fails.

initializeAll :: (Functor m, MonadIO m) => m ()

Equivalent to initialize [minBound .. maxBound].

data InitFlag

Constructors

InitTimer

InitAudio

InitVideo

InitJoystick

InitHaptic

InitGameController

InitEvents

Instances

Bounded InitFlag

Methods

minBound :: InitFlag

maxBound :: InitFlag

Enum InitFlag

Methods

succ :: InitFlag -> InitFlag

pred :: InitFlag -> InitFlag

toEnum :: Int -> InitFlag

fromEnum :: InitFlag -> Int

enumFrom :: InitFlag -> [InitFlag]

enumFromThen :: InitFlag -> InitFlag -> [InitFlag]

enumFromTo :: InitFlag -> InitFlag -> [InitFlag]

enumFromThenTo :: InitFlag -> InitFlag -> InitFlag -> [InitFlag]

Eq InitFlag

Methods

(==) :: InitFlag -> InitFlag -> Bool

(/=) :: InitFlag -> InitFlag -> Bool

Data InitFlag

Methods

gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> InitFlag -> c InitFlag

gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c InitFlag

toConstr :: InitFlag -> Constr

dataTypeOf :: InitFlag -> DataType

dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c InitFlag)

dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c InitFlag)

gmapT :: (forall b. Data b => b -> b) -> InitFlag -> InitFlag

gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> InitFlag -> r

gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> InitFlag -> r

gmapQ :: (forall d. Data d => d -> u) -> InitFlag -> [u]

gmapQi :: Int -> (forall d. Data d => d -> u) -> InitFlag -> u

gmapM :: Monad m => (forall d. Data d => d -> m d) -> InitFlag -> m InitFlag

gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> InitFlag -> m InitFlag

gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> InitFlag -> m InitFlag

Ord InitFlag

Methods

compare :: InitFlag -> InitFlag -> Ordering

(<) :: InitFlag -> InitFlag -> Bool

(<=) :: InitFlag -> InitFlag -> Bool

(>) :: InitFlag -> InitFlag -> Bool

(>=) :: InitFlag -> InitFlag -> Bool

max :: InitFlag -> InitFlag -> InitFlag

min :: InitFlag -> InitFlag -> InitFlag

Read InitFlag

Methods

readsPrec :: Int -> ReadS InitFlag

readList :: ReadS [InitFlag]

readPrec :: ReadPrec InitFlag

readListPrec :: ReadPrec [InitFlag]

Show InitFlag

Methods

showsPrec :: Int -> InitFlag -> ShowS

show :: InitFlag -> String

showList :: [InitFlag] -> ShowS

Generic InitFlag

Associated Types

type Rep InitFlag :: * -> *

Methods

from :: InitFlag -> Rep InitFlag x

to :: Rep InitFlag x -> InitFlag

ToNumber InitFlag Word32

Methods

toNumber :: InitFlag -> Word32

type Rep InitFlag

type Rep InitFlag = D1 (MetaData "InitFlag" "SDL.Init" "sdl2-2.4.0.1-JrcuLoapSXVLRmXtawChdv" False) ((C1 (MetaCons "InitTimer" PrefixI False) (U1 :: * -> *) :+: (C1 (MetaCons "InitAudio" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "InitVideo" PrefixI False) (U1 :: * -> *))) :+: ((C1 (MetaCons "InitJoystick" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "InitHaptic" PrefixI False) (U1 :: * -> *)) :+: (C1 (MetaCons "InitGameController" PrefixI False) (U1 :: * -> *) :+: C1 (MetaCons "InitEvents" PrefixI False) (U1 :: * -> *))))

quit :: MonadIO m => m ()

Quit and shutdown SDL, freeing any resources that may have been in use. Do not call any SDL functions after you've called this function, unless otherwise documented that you may do so.

version :: (Integral a, MonadIO m) => m (a, a, a)

The major, minor, and patch versions of the SDL library linked with. Does not require initialization.