Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_GetNumGPUDrivers - Get the number of GPU drivers compiled into SDL.
SYNOPSIS
#include <SDL3/SDL_gpu.h>
int SDL_GetNumGPUDrivers(void);
RETURN VALUE
Returns the number of built in GPU drivers.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
SDL_GetGPUDriver(3)
Simple Directmedia Layer SDL 3.2.20 SDL_GetNumGPUDrivers(3)