regkey:set_value only writes part of string

[cubenicke]

Simple sample to illustrate the issue with only part of strings written.

require "winapi"

local key, err = winapi.open_reg_key([[HKEY_USERS\S-1-5-21-3530694592-716403133-1610703870-44512\Software\Microsoft\Windows\CurrentVersion\Policies\System]], true)

if not key then return print('bad key',err) end

local str= [[c:\photo\img_4826.jpg]]

key:set_value('wallpaper', str, winapi.REG_SZ)

print(key:get_value('wallpaper', winapi.REG_SZ))