Function SDL_AddSurfaceAlternateImage 

pub unsafe extern "C" fn SDL_AddSurfaceAlternateImage(
    surface: *mut SDL_Surface,
    image: *mut SDL_Surface,
) -> bool

Add an alternate version of a surface.

This function adds an alternate version of this surface, usually used for content with high DPI representations like cursors or icons. The size, format, and content do not need to match the original surface, and these alternate versions will not be updated when the original surface changes.

This function adds a reference to the alternate version, so you should call SDL_DestroySurface() on the image after this call.

Parameters

• surface: the SDL_Surface structure to update.
• image: a pointer to an alternate SDL_Surface to associate with this surface.

Return value

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

Thread safety

This function can be called on different threads with different surfaces.

Availability

This function is available since SDL 3.2.0.

See also

• SDL_RemoveSurfaceAlternateImages
• SDL_GetSurfaceImages
• SDL_SurfaceHasAlternateImages