# SDL_ISCOLORSPACE_MATRIX_BT2020_NCL A macro to determine if an [SDL_Colorspace](SDL_Colorspace) uses BT2020_NCL matrix coefficients. ## Header File Defined in [<SDL3/SDL_pixels.h>](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_pixels.h) ## Syntax ```c #define SDL_ISCOLORSPACE_MATRIX_BT2020_NCL(cspace) (SDL_COLORSPACEMATRIX(cspace) == SDL_MATRIX_COEFFICIENTS_BT2020_NCL) ``` ## Macro Parameters | | | | ---------- | --------------------------------------------- | | **cspace** | an [SDL_Colorspace](SDL_Colorspace) to check. | ## Return Value Returns true if BT2020_NCL, false otherwise. ## Thread Safety It is safe to call this macro from any thread. ## Version This macro is available since SDL 3.2.0. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryPixels](CategoryPixels)