Safe Haskell	None
Language	GHC2021

SDL3.Sys.Bindgen.Properties.Unsafe

Synopsis

sDL_GetGlobalProperties :: IO SDL_PropertiesID
sDL_CreateProperties :: IO SDL_PropertiesID
sDL_CopyProperties :: SDL_PropertiesID -> SDL_PropertiesID -> IO CBool
sDL_LockProperties :: SDL_PropertiesID -> IO CBool
sDL_UnlockProperties :: SDL_PropertiesID -> IO ()
sDL_SetPointerPropertyWithCleanup :: SDL_PropertiesID -> PtrConst CChar -> Ptr Void -> SDL_CleanupPropertyCallback -> Ptr Void -> IO CBool
sDL_SetPointerProperty :: SDL_PropertiesID -> PtrConst CChar -> Ptr Void -> IO CBool
sDL_SetStringProperty :: SDL_PropertiesID -> PtrConst CChar -> PtrConst CChar -> IO CBool
sDL_SetNumberProperty :: SDL_PropertiesID -> PtrConst CChar -> Sint64 -> IO CBool
sDL_SetFloatProperty :: SDL_PropertiesID -> PtrConst CChar -> CFloat -> IO CBool
sDL_SetBooleanProperty :: SDL_PropertiesID -> PtrConst CChar -> CBool -> IO CBool
sDL_HasProperty :: SDL_PropertiesID -> PtrConst CChar -> IO CBool
sDL_GetPropertyType :: SDL_PropertiesID -> PtrConst CChar -> IO SDL_PropertyType
sDL_GetPointerProperty :: SDL_PropertiesID -> PtrConst CChar -> Ptr Void -> IO (Ptr Void)
sDL_GetStringProperty :: SDL_PropertiesID -> PtrConst CChar -> PtrConst CChar -> IO (PtrConst CChar)
sDL_GetNumberProperty :: SDL_PropertiesID -> PtrConst CChar -> Sint64 -> IO Sint64
sDL_GetFloatProperty :: SDL_PropertiesID -> PtrConst CChar -> CFloat -> IO CFloat
sDL_GetBooleanProperty :: SDL_PropertiesID -> PtrConst CChar -> CBool -> IO CBool
sDL_ClearProperty :: SDL_PropertiesID -> PtrConst CChar -> IO CBool
sDL_EnumerateProperties :: SDL_PropertiesID -> SDL_EnumeratePropertiesCallback -> Ptr Void -> IO CBool
sDL_DestroyProperties :: SDL_PropertiesID -> IO ()

Documentation

sDL_GetGlobalProperties :: IO SDL_PropertiesID Source #

Get the global SDL properties.

Returns: a valid property ID on success or 0 on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_GetGlobalProperties, defined at SDL3/SDL_properties.h 118:46

Since: 3.2.0

sDL_CreateProperties :: IO SDL_PropertiesID Source #

Create a group of properties.

All properties are automatically destroyed when SDL_Quit() is called.

Returns: an ID for a new group of properties, or 0 on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_DestroyProperties
C declaration: SDL_CreateProperties, defined at SDL3/SDL_properties.h 134:46

Since: 3.2.0

sDL_CopyProperties Source #

Arguments

:: SDL_PropertiesID	`src` the properties to copy.
-> SDL_PropertiesID	`dst` the destination properties.
-> IO CBool

Copy a group of properties.

Copy all the properties from one group of properties to another, with the exception of properties requiring cleanup (set using SDL_SetPointerPropertyWithCleanup()), which will not be copied. Any property that already exists on dst will be overwritten.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread. This function acquires simultaneous mutex locks on both the source and destination property sets.
C declaration: SDL_CopyProperties, defined at SDL3/SDL_properties.h 155:34

Since: 3.2.0

sDL_LockProperties Source #

Arguments

:: SDL_PropertiesID	`props` the properties to lock.
-> IO CBool

Lock a group of properties.

Obtain a multi-threaded lock for these properties. Other threads will wait while trying to lock these properties until they are unlocked. Properties must be unlocked before they are destroyed.

The lock is automatically taken when setting individual properties, this function is only needed when you want to set several properties atomically or want to guarantee that properties being queried aren't freed in another thread.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_UnlockProperties
C declaration: SDL_LockProperties, defined at SDL3/SDL_properties.h 179:34

Since: 3.2.0

sDL_UnlockProperties Source #

Arguments

:: SDL_PropertiesID	`props` the properties to unlock.
-> IO ()

Unlock a group of properties.

Thread safety: It is safe to call this function from any thread.
See also: sDL_LockProperties
C declaration: SDL_UnlockProperties, defined at SDL3/SDL_properties.h 192:34

Since: 3.2.0

sDL_SetPointerPropertyWithCleanup Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> Ptr Void	`value` the new value of the property, or NULL to delete the property.
-> SDL_CleanupPropertyCallback	`cleanup` the function to call when this property is deleted, or NULL if no cleanup is necessary.
-> Ptr Void	`userdata` a pointer that is passed to the cleanup function.
-> IO CBool

Set a pointer property in a group of properties with a cleanup function that is called when the property is deleted.

The cleanup function is also called if setting the property fails for any reason.

For simply setting basic data types, like numbers, bools, or strings, use SDL_SetNumberProperty, SDL_SetBooleanProperty, or SDL_SetStringProperty instead, as those functions will handle cleanup on your behalf. This function is only for more complex, custom data.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPointerProperty, sDL_SetPointerProperty, SDL_CleanupPropertyCallback
C declaration: SDL_SetPointerPropertyWithCleanup, defined at SDL3/SDL_properties.h 247:34

Since: 3.2.0

sDL_SetPointerProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> Ptr Void	`value` the new value of the property, or NULL to delete the property.
-> IO CBool

Set a pointer property in a group of properties.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPointerProperty, sDL_HasProperty, sDL_SetBooleanProperty, sDL_SetFloatProperty, sDL_SetNumberProperty, sDL_SetPointerPropertyWithCleanup, sDL_SetStringProperty
C declaration: SDL_SetPointerProperty, defined at SDL3/SDL_properties.h 270:34

Since: 3.2.0

sDL_SetStringProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> PtrConst CChar	`value` the new value of the property, or NULL to delete the property.
-> IO CBool

Set a string property in a group of properties.

This function makes a copy of the string; the caller does not have to preserve the data after this call completes.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetStringProperty
C declaration: SDL_SetStringProperty, defined at SDL3/SDL_properties.h 290:34

Since: 3.2.0

sDL_SetNumberProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> Sint64	`value` the new value of the property.
-> IO CBool

Set an integer property in a group of properties.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetNumberProperty
C declaration: SDL_SetNumberProperty, defined at SDL3/SDL_properties.h 307:34

Since: 3.2.0

sDL_SetFloatProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> CFloat	`value` the new value of the property.
-> IO CBool

Set a floating point property in a group of properties.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetFloatProperty
C declaration: SDL_SetFloatProperty, defined at SDL3/SDL_properties.h 324:34

Since: 3.2.0

sDL_SetBooleanProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to modify.
-> CBool	`value` the new value of the property.
-> IO CBool

Set a boolean property in a group of properties.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetBooleanProperty
C declaration: SDL_SetBooleanProperty, defined at SDL3/SDL_properties.h 341:34

Since: 3.2.0

sDL_HasProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> IO CBool

Return whether a property exists in a group of properties.

Returns: true if the property exists, or false if it doesn't.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPropertyType
C declaration: SDL_HasProperty, defined at SDL3/SDL_properties.h 356:34

Since: 3.2.0

sDL_GetPropertyType Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> IO SDL_PropertyType

Get the type of a property in a group of properties.

Returns: the type of the property, or SDL_PROPERTY_TYPE_INVALID if it is not set.
Thread safety: It is safe to call this function from any thread.
See also: sDL_HasProperty
C declaration: SDL_GetPropertyType, defined at SDL3/SDL_properties.h 372:46

Since: 3.2.0

sDL_GetPointerProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> Ptr Void	`default_value` the default value of the property.
-> IO (Ptr Void)

Get a pointer property from a group of properties.

By convention, the names of properties that SDL exposes on objects will start with "SDL.", and properties that SDL uses internally will start with "SDL.internal.". These should be considered read-only and should not be modified by applications.

Returns: the value of the property, or default_value if it is not set or not a pointer property.
Thread safety: It is safe to call this function from any thread, although the data returned is not protected and could potentially be freed if you call SDL_SetPointerProperty() or SDL_ClearProperty() on these properties from another thread. If you need to avoid this, use SDL_LockProperties() and SDL_UnlockProperties().
See also: sDL_GetBooleanProperty, sDL_GetFloatProperty, sDL_GetNumberProperty, sDL_GetPropertyType, sDL_GetStringProperty, sDL_HasProperty, sDL_SetPointerProperty
C declaration: SDL_GetPointerProperty, defined at SDL3/SDL_properties.h 405:36

Since: 3.2.0

sDL_GetStringProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> PtrConst CChar	`default_value` the default value of the property.
-> IO (PtrConst CChar)

Get a string property from a group of properties.

Returns: the value of the property, or default_value if it is not set or not a string property.
Thread safety: It is safe to call this function from any thread, although the data returned is not protected and could potentially be freed if you call SDL_SetStringProperty() or SDL_ClearProperty() on these properties from another thread. If you need to avoid this, use SDL_LockProperties() and SDL_UnlockProperties().
See also: sDL_GetPropertyType, sDL_HasProperty, sDL_SetStringProperty
C declaration: SDL_GetStringProperty, defined at SDL3/SDL_properties.h 429:42

Since: 3.2.0

sDL_GetNumberProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> Sint64	`default_value` the default value of the property.
-> IO Sint64

Get a number property from a group of properties.

You can use SDL_GetPropertyType() to query whether the property exists and is a number property.

Returns: the value of the property, or default_value if it is not set or not a number property.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPropertyType, sDL_HasProperty, sDL_SetNumberProperty
C declaration: SDL_GetNumberProperty, defined at SDL3/SDL_properties.h 451:36

Since: 3.2.0

sDL_GetFloatProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> CFloat	`default_value` the default value of the property.
-> IO CFloat

Get a floating point property from a group of properties.

You can use SDL_GetPropertyType() to query whether the property exists and is a floating point property.

Returns: the value of the property, or default_value if it is not set or not a float property.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPropertyType, sDL_HasProperty, sDL_SetFloatProperty
C declaration: SDL_GetFloatProperty, defined at SDL3/SDL_properties.h 473:35

Since: 3.2.0

sDL_GetBooleanProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> PtrConst CChar	`name` the name of the property to query.
-> CBool	`default_value` the default value of the property.
-> IO CBool

Get a boolean property from a group of properties.

You can use SDL_GetPropertyType() to query whether the property exists and is a boolean property.

Returns: the value of the property, or default_value if it is not set or not a boolean property.
Thread safety: It is safe to call this function from any thread.
See also: sDL_GetPropertyType, sDL_HasProperty, sDL_SetBooleanProperty
C declaration: SDL_GetBooleanProperty, defined at SDL3/SDL_properties.h 495:34

Since: 3.2.0

sDL_ClearProperty Source #

Arguments

:: SDL_PropertiesID	`props` the properties to modify.
-> PtrConst CChar	`name` the name of the property to clear.
-> IO CBool

Clear a property from a group of properties.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_ClearProperty, defined at SDL3/SDL_properties.h 509:34

Since: 3.2.0

sDL_EnumerateProperties Source #

Arguments

:: SDL_PropertiesID	`props` the properties to query.
-> SDL_EnumeratePropertiesCallback	`callback` the function to call for each property.
-> Ptr Void	`userdata` a pointer that is passed to `callback`.
-> IO CBool

Enumerate the properties contained in a group of properties.

The callback function is called for each property in the group of properties. The properties are locked during enumeration.

Returns: true on success or false on failure; call SDL_GetError() for more information.
Thread safety: It is safe to call this function from any thread.
C declaration: SDL_EnumerateProperties, defined at SDL3/SDL_properties.h 546:34

Since: 3.2.0

sDL_DestroyProperties Source #

Arguments

:: SDL_PropertiesID	`props` the properties to destroy.
-> IO ()

Destroy a group of properties.

All properties are deleted and their cleanup functions will be called, if any.

Thread safety: This function should not be called while these properties are locked or other threads might be setting or getting values from these properties.
See also: sDL_CreateProperties
C declaration: SDL_DestroyProperties, defined at SDL3/SDL_properties.h 564:34

Since: 3.2.0