Function NvAPI_DISP_GetDisplayIdByDisplayName

src/nvapi/nvapi.cpp:204–242

}

NVAPI_INTERFACE
NvAPI_DISP_GetDisplayIdByDisplayName(const char *displayName, NvU32 *displayId) {
  struct MonitorEnumInfo {
    std::string name;
    HMONITOR handle;
    bool is_primary;
  };

  MonitorEnumInfo info;
  info.name = displayName;
  info.handle = nullptr;
  ::EnumDisplayMonitors(
      nullptr, nullptr,
      [](HMONITOR hmon, HDC hdc, LPRECT rect, LPARAM lp) -> BOOL {
        auto data = reinterpret_cast<MonitorEnumInfo *>(lp);

        ::MONITORINFOEXW monitor_info;
        monitor_info.cbSize = sizeof(monitor_info);

        if (!::GetMonitorInfoW(hmon, reinterpret_cast<MONITORINFO *>(&monitor_info)))
          return TRUE;

        if (data->name != str::fromws(monitor_info.szDevice))
          return TRUE;

        data->handle = hmon;
        data->is_primary = monitor_info.dwFlags & MONITORINFOF_PRIMARY;
        return FALSE;
      },
      reinterpret_cast<LPARAM>(&info)
  );

  if (!info.handle)
    return NVAPI_NVIDIA_DEVICE_NOT_FOUND;

  *displayId = info.is_primary ? WMTGetPrimaryDisplayId() : WMTGetSecondaryDisplayId();

  return NVAPI_OK;
}

NVAPI_INTERFACE
NvAPI_D3D_GetObjectHandleForResource(IUnknown *pDevice, IUnknown *pResource, NVDX_ObjectHandle *pHandle) {