# SDL_CopyProperties Copy a group of properties. ## Header File Defined in [<SDL3/SDL_properties.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_properties.h) ## Syntax ```c bool SDL_CopyProperties(SDL_PropertiesID src, SDL_PropertiesID dst); ``` ## Function Parameters | | | | | ------------------------------------ | ------- | --------------------------- | | [SDL_PropertiesID](SDL_PropertiesID) | **src** | the properties to copy. | | [SDL_PropertiesID](SDL_PropertiesID) | **dst** | the destination properties. | ## Return Value (bool) Returns true on success or false on failure; call [SDL_GetError](SDL_GetError)() for more information. ## Remarks Copy all the properties from one group of properties to another, with the exception of properties requiring cleanup (set using [SDL_SetPointerPropertyWithCleanup](SDL_SetPointerPropertyWithCleanup)()), which will not be copied. Any property that already exists on `dst` will be overwritten. ## Thread Safety It is safe to call this function from any thread. ## Version This function is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIFunction](CategoryAPIFunction), [CategoryProperties](CategoryProperties)