---
title: "MetaTrader 5 Client Terminal build 250 - 更新历史"
description: "发布说明: MQL5: Fixed an error in passing of NULL as a string parameter to DLL function call. MQL5: Fixed errors reported on Forum. - 更新历史"
image: "https://www.metatrader5.com/i/logo_metatrader5.png"
---

# MetaTrader 5 Client Terminal build 250

## 发布说明: MQL5: Fixed an error in passing of NULL as a string parameter to DLL function call. MQL5: Fixed errors reported on Forum

23 二月 2010

1. MQL5: Fixed an error in passing of NULL as a string parameter to DLL function call.
2. MQL5: Fixed errors reported on Forum.
3. MQL5: Added some features for x64 compiler support.
4. MQL5: Fixed event handling for movement of graphic objects.
5. MQL5: Fixed errors in Standard Library (constant methods and their parameters).
6. MQL5: Fixed an error in default parameter digits of function DoubleToString.
7. MQL5: Fixed an error in synchronous access to history for Expert Advisors and scripts.
8. MQL5: Fixed an error in allocation of large amount of memory for the timeseries request in the "from date to date" mode.
9. MQL5: Fixed an error in function optimizer that leads to the error of "Unresolved function".
10. Terminal: Fixed an error in history formation for the case of transition through midnight when the client and server times are desynchronized.
11. Terminal: Fixed an error in calculation of Assets (Exposure tab).
12. Terminal: Added new option to use a precise time scale for the objects creation (Tools-Option-Objects-Precise time scale). This option allows to bind anchor points of graphic objects to precise values of time scale, instead of binding to bar time values of the chart.

**请参阅前面的新闻：**

- [MetaTrader 5 Client Terminal build 249](https://www.metatrader5.com/zh/releasenotes/terminal/249)
- [MetaTrader 5 Client Terminal build 248](https://www.metatrader5.com/zh/releasenotes/terminal/248)
- [MetaTrader 5 Client Terminal builds 247](https://www.metatrader5.com/zh/releasenotes/terminal/247)
- [MetaTrader 5 Client Terminal builds 246](https://www.metatrader5.com/zh/releasenotes/terminal/246)
- [MetaTrader 5 客户终端 build 245](https://www.metatrader5.com/zh/releasenotes/terminal/245)