Function lookup_functions

lib/hidapi/windows/hid.c:119–168

}

static int lookup_functions()
{
	hid_lib_handle = LoadLibraryW(L"hid.dll");
	if (hid_lib_handle == NULL) {
		goto err;
	}

	cfgmgr32_lib_handle = LoadLibraryW(L"cfgmgr32.dll");
	if (cfgmgr32_lib_handle == NULL) {
		goto err;
	}

#if defined(__GNUC__)
# pragma GCC diagnostic push
# pragma GCC diagnostic ignored "-Wcast-function-type"
#endif
#define RESOLVE(lib_handle, x) x = (x##_)GetProcAddress(lib_handle, #x); if (!x) goto err;

	RESOLVE(hid_lib_handle, HidD_GetHidGuid);
	RESOLVE(hid_lib_handle, HidD_GetAttributes);
	RESOLVE(hid_lib_handle, HidD_GetSerialNumberString);
	RESOLVE(hid_lib_handle, HidD_GetManufacturerString);
	RESOLVE(hid_lib_handle, HidD_GetProductString);
	RESOLVE(hid_lib_handle, HidD_SetFeature);
	RESOLVE(hid_lib_handle, HidD_GetFeature);
	RESOLVE(hid_lib_handle, HidD_GetInputReport);
	RESOLVE(hid_lib_handle, HidD_GetIndexedString);
	RESOLVE(hid_lib_handle, HidD_GetPreparsedData);
	RESOLVE(hid_lib_handle, HidD_FreePreparsedData);
	RESOLVE(hid_lib_handle, HidP_GetCaps);
	RESOLVE(hid_lib_handle, HidD_SetNumInputBuffers);

	RESOLVE(cfgmgr32_lib_handle, CM_Locate_DevNodeW);
	RESOLVE(cfgmgr32_lib_handle, CM_Get_Parent);
	RESOLVE(cfgmgr32_lib_handle, CM_Get_DevNode_PropertyW);
	RESOLVE(cfgmgr32_lib_handle, CM_Get_Device_Interface_PropertyW);
	RESOLVE(cfgmgr32_lib_handle, CM_Get_Device_Interface_List_SizeW);
	RESOLVE(cfgmgr32_lib_handle, CM_Get_Device_Interface_ListW);

#undef RESOLVE
#if defined(__GNUC__)
# pragma GCC diagnostic pop
#endif

	return 0;

err:
	free_library_handles();
	return -1;
}

#endif /* HIDAPI_USE_DDK */