SDL_HINT_BMP_SAVE_LEGACY_FORMAT - Prevent SDL from using version 4 of the bitmap header when saving BMPs.

       This hint is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                 SDL_HINT_BMP_SAVE_LEGACY_FORMAT(3)

       The  bitmap  header  version  4  is  required  for  proper alpha channel support and SDL will use it when
       required. Should this not be desired, this hint can force the use of the 40 byte header version which  is
       supported everywhere.

       The variable can be set to the following values:

       •  "0":  Surfaces  with a colorkey or an alpha channel are saved to a 32-bit BMP file with an alpha mask.
       SDL will use the bitmap header version 4 and set the alpha mask accordingly. (default)

       • "1": Surfaces with a colorkey or an alpha channel are saved to a 32-bit BMP file without an alpha mask.
       The alpha channel data will be in the file, but applications are going to ignore it.

       This hint can be set anytime.

       SDL_HINT_BMP_SAVE_LEGACY_FORMAT - Prevent SDL from using version 4 of the bitmap header when saving BMPs.

#include<SDL3/SDL_hints.h>#defineSDL_HINT_BMP_SAVE_LEGACY_FORMAT"SDL_BMP_SAVE_LEGACY_FORMAT"