native: getDeviceID and getDeviceInfo

native/src/registry/registry.hpp

@@ -0,0 +1,40 @@
+#pragma once
+
+#ifndef REGISTRY_HPP
+#define REGISTRY_HPP
+
+#include "../define.h"
+
+namespace RegUtils {
+
+    DWORD GetInt(Env env, HKEY hKey, const wstring &path, const wstring &value) {
+        DWORD data = 0;
+        DWORD size = sizeof(DWORD);
+        LSTATUS retcode = RegGetValue(hKey, path.c_str(), value.c_str(), RRF_RT_REG_DWORD, nullptr, &data, &size);
+        if (retcode != ERROR_SUCCESS) {
+            Error::New(env, "RegGetValue error: " + to_string(retcode)).ThrowAsJavaScriptException();
+            return 0;
+        }
+        return data;
+    }
+
+    LSTATUS GetString(HKEY hKey, const wstring &path, const wstring &value, wstring &result) {
+        DWORD size = 0;
+        LSTATUS retcode = RegGetValue(hKey, path.c_str(), value.c_str(), RRF_RT_REG_SZ, nullptr, nullptr, &size);
+        if (retcode != ERROR_SUCCESS) {
+            return retcode;
+        }
+        wstring data;
+        DWORD len = size / sizeof(WCHAR);
+        data.resize(len);
+        retcode = RegGetValue(hKey, path.c_str(), value.c_str(), RRF_RT_REG_SZ, nullptr, &data[0], &size);
+        if (retcode != ERROR_SUCCESS) {
+            return retcode;
+        }
+        data.resize((len-1));
+        result = data;
+        return ERROR_SUCCESS;
+    }
+}
+
+#endif //REGISTRY_HPP