SDL_GetRGBA - Get RGBA values from a pixel in the specified format.

       This function is available since SDL 3.2.0.

       This  function  uses  the entire 8-bit [0..255] range when converting color components from pixel formats
       with less than 8-bits per RGB component (e.g., a completely white pixel in  16-bit  RGB565  format  would
       return [0xff, 0xff, 0xff] not [0xf8, 0xfc, 0xf8]).

       If the surface has no alpha component, the alpha will be returned as 0xff (100% opaque).

pixel  a pixel value.

       format a pointer to SDL_PixelFormatDetails describing the pixel format.

       palette
              an optional palette for indexed formats, may be NULL.

       r      a pointer filled in with the red component, may be NULL.

       g      a pointer filled in with the green component, may be NULL.

       b      a pointer filled in with the blue component, may be NULL.

       a      a pointer filled in with the alpha component, may be NULL.

       SDL_GetRGBA - Get RGBA values from a pixel in the specified format.

SDL_GetPixelFormatDetails(3), SDL_GetRGB(3), SDL_MapRGB(3), SDL_MapRGBA(3)

Simple Directmedia Layer                           SDL 3.2.20                                     SDL_GetRGBA(3)

#include<SDL3/SDL_pixels.h>voidSDL_GetRGBA(Uint32pixel,constSDL_PixelFormatDetails*format,constSDL_Palette*palette,Uint8*r,Uint8*g,Uint8*b,Uint8*a);

       It is safe to call this function from any thread, as long as the palette is not modified.