Kill MSI logo LEDs in MSI GTX 980 Ti Graphics Card

kill-msi-logo-leds.cpp

#include <Windows.h>

typedef bool (__stdcall *NDA_SetIlluminationParm_t)(int adapter_index, int attribute, int value);
typedef bool (__stdcall *NDA_GetIlluminationParm_t)(int adapter_index, int attribute, int *value);
typedef bool (__stdcall *NDA_GetGPUCounts_t)(int *gpu_count);
typedef bool (__stdcall *NDA_Initialize_t)();
typedef bool (__stdcall *NDA_Unload_t)();

int
main()
{
  auto nda = LoadLibraryW(LR"(C:\Program Files (x86)\MSI\MSI Gaming APP\Lib\NDA.dll)");

  auto NDA_Initialize = reinterpret_cast<NDA_Initialize_t>(
    GetProcAddress(nda, "_NDA_Initialize@0")
    );
  auto NDA_Unload = reinterpret_cast<NDA_Unload_t>(
    GetProcAddress(nda, "_NDA_Unload@0")
    );
  auto NDA_GetGPUCounts = reinterpret_cast<NDA_GetGPUCounts_t>(
    GetProcAddress(nda, "_NDA_GetGPUCounts@4")
    );
  auto  NDA_SetIlluminationParm = reinterpret_cast<NDA_SetIlluminationParm_t>(
    GetProcAddress(nda, "_NDA_SetIlluminationParm@12")
    );
  auto NDA_GetIlluminationParm = reinterpret_cast<NDA_GetIlluminationParm_t>(
    GetProcAddress(nda, "_NDA_GetIlluminationParm@12")
    );

  NDA_Initialize();

  int gpu_count;
  NDA_GetGPUCounts(&gpu_count);

  for (auto i = 0; i < gpu_count; ++i)
  {
    int illumination;

    NDA_GetIlluminationParm(i, 0, &illumination);

    if (illumination > 0)
    {
      illumination = 0;
    }
    else
    {
      illumination = 100;
    }

    NDA_SetIlluminationParm(i, 0, illumination);
  }

  NDA_Unload();

  FreeLibrary(nda);
}