SDL_ClipboardDataCallback - Callback function that will be called when data for the specified mime-type

       This function is available since SDL 3.2.0.

       The callback function is called with NULL as the mime_type when the clipboard is cleared or new  data  is
       set. The clipboard is automatically cleared in SDL_Quit ().

userdata
              a pointer to provided user data.

       mime_type
              the requested mime-type.

       size   a pointer filled in with the length of the returned data.

       Defined in SDL3/SDL_clipboard.h

       SDL_ClipboardDataCallback  -  Callback function that will be called when data for the specified mime-type
       is requested by the OS.

       Returns  a  pointer  to  the  data for the provided mime-type. Returning NULL or setting length to 0 will
       cause no data to be sent to the "receiver". It  is  up  to  the  receiver  to  handle  this.  Essentially
       returning  no  data  is more or less undefined behavior and may cause breakage in receiving applications.
       The returned data will not be freed so it needs to be retained and dealt with internally.

•(3), SDL_SetClipboardData(3)

Simple Directmedia Layer                           SDL 3.2.10                   SDL_ClipboardDataCallback(3type)

#include"SDL3/SDL.h"typedefconstvoid*(SDLCALL*SDL_ClipboardDataCallback)(void*userdata,constchar*mime_type,size_t*size);