SDL_hid_get_report_descriptor3
Get a report descriptor from a hid device.
Usage
#include "SDL3/SDL.h"
int SDL_hid_get_report_descriptor(SDL_hid_device *dev, unsigned char *buf, size_t buf_size);
Header file
Defined in SDL3/SDL_hidapi.h
Overview
User has to provide a preallocated buffer where descriptor will be copied to. The recommended size for a preallocated buffer is 4096 bytes.
Function parameters
dev
|
a device handle returned from |
|---|---|
buf
|
the buffer to copy descriptor into. |
buf_size
|
the size of the buffer in bytes. |
Return value
Returns the number of bytes actually copied or -1 on failure; call
SDL_GetError () for more information.