pub type SDL_CleanupPropertyCallback = Option<unsafe extern "C" fn(userdata: *mut c_void, value: *mut c_void)>;Expand description
A callback used to free resources when a property is deleted.
This should release any resources associated with value that are no
longer needed.
This callback is set per-property. Different properties in the same group can have different cleanup callbacks.
This callback will be called during SDL_SetPointerPropertyWithCleanup if the function fails for any reason.
Parameter: userdata an app-defined pointer passed to the callback. Parameter: value the pointer assigned to the property to clean up.
Thread Safety: This callback may fire without any locks held; if this is a concern, the app should provide its own locking.
Available Since: This datatype is available since SDL 3.2.0.
See Also: SDL_SetPointerPropertyWithCleanup
Aliased Type§
pub enum SDL_CleanupPropertyCallback {
None,
Some(unsafe extern "C" fn(*mut c_void, *mut c_void)),
}