(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_SetPointerPropertyWithCleanup

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

Header File

Syntax

bool SDL_SetPointerPropertyWithCleanup(SDL_PropertiesID props, const char *name, void *value, SDL_CleanupPropertyCallback cleanup, void *userdata);

Function Parameters

SDL_PropertiesID	props	the properties to modify.
const char *	name	the name of the property to modify.
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.
void *	userdata	a pointer that is passed to the cleanup function.

Return Value

(bool) Returns true on success or false on failure; call SDL_GetError() for more information.

Remarks

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.

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.