###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_ISPIXELFORMAT_PACKED A macro to determine if an [SDL_PixelFormat](SDL_PixelFormat) is a packed format. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_pixels.h) ## Syntax ```c #define SDL_ISPIXELFORMAT_PACKED(format) \ (!SDL_ISPIXELFORMAT_FOURCC(format) && \ ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED8) || \ (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED16) || \ (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED32))) ``` ## Macro Parameters | | | | ---------- | ----------------------------------------------- | | **format** | an [SDL_PixelFormat](SDL_PixelFormat) to check. | ## Return Value Returns true if the format is packed, false otherwise. ## Remarks Note that this macro double-evaluates its parameter, so do not use expressions with side-effects here. ## Thread Safety It is safe to call this macro from any thread. ## Version This macro is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryPixels](CategoryPixels)