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轻松快捷开发 MetaTrader 程序的函数库(第八部分):订单和持仓修改事件·进阶篇

（2/3）· 当 StopLimit 激活事件已就位，如何扩展函数库捕获已有订单持仓的每一次改动

偏理论第 2/3 篇

很多开发者在扩展交易事件库时，只盯住开单和下单，却忽略了订单与持仓在生命周期内的属性修改。这类改动若不被捕获，策略对盘口状态的认知就会滞后于真实账户。

本章目录

账户交易事件的位标志枚举
交易事件枚举的成员排布逻辑
逐笔成交事件枚举里的高频钩子
改单与事件状态的枚举划分
交易事件触发原因的枚举清单
账户事件原因枚举与属性偏移量

◍ 账户交易事件的位标志枚举

在 MT5 的底层交易事件监听里，账户级动作被拆成一套 2 的幂次位标志，写进 ENUM_TRADE_EVENT_FLAGS 枚举，方便用按位或做组合订阅。从 0 到 16384 一共 15 个常量：0 是无事件，1 挂单放入、2 挂单删除、4 价格触发挂单、8 开仓、16 仓位变更、32 反手、64 平仓、128 余额操作、256 部分成交、512 被对向仓位吃单。高亮的三项值得单独看：1024 是挂单 Placement price 修改，8192 是 Order modification（普通挂单改参），16384 是 Position modification（已开仓位改 SL/TP 或手数）。外汇与贵金属杠杆高，这类改仓事件若被 EA 监听不到位，可能在不经意间放大回撤。开 MT5 敲 ENUM_TRADE_EVENT_FLAGS 看一眼，你会发现 1024/8192/16384 这三个值正好覆盖「价改—单改—仓改」三层，做事件驱动型 EA 时建议先按位过滤再处理。

MQL5 / C++

enum ENUM_TRADE_EVENT_FLAGS
  {
   TRADE_EVENT_FLAG_NO_EVENT       = class="num">0,       class=class="str">"cmt">// No event
   TRADE_EVENT_FLAG_ORDER_PLASED   = class="num">1,       class=class="str">"cmt">// Pending order placed
   TRADE_EVENT_FLAG_ORDER_REMOVED  = class="num">2,       class=class="str">"cmt">// Pending order removed
   TRADE_EVENT_FLAG_ORDER_ACTIVATED = class="num">4,      class=class="str">"cmt">// Pending order activated by price
   TRADE_EVENT_FLAG_POSITION_OPENED = class="num">8,      class=class="str">"cmt">// Position opened
   TRADE_EVENT_FLAG_POSITION_CHANGED= class="num">16,     class=class="str">"cmt">// Position changed
   TRADE_EVENT_FLAG_POSITION_REVERSE= class="num">32,     class=class="str">"cmt">// Position reversed
   TRADE_EVENT_FLAG_POSITION_CLOSED = class="num">64,     class=class="str">"cmt">// Position closed
   TRADE_EVENT_FLAG_ACCOUNT_BALANCE = class="num">128,    class=class="str">"cmt">// Balance operation(clarified by a deal type)
   TRADE_EVENT_FLAG_PARTIAL        = class="num">256,     class=class="str">"cmt">// Partial execution
   TRADE_EVENT_FLAG_BY_POS         = class="num">512,     class=class="str">"cmt">// Executed by opposite position
   TRADE_EVENT_FLAG_PRICE          = class="num">1024,    class=class="str">"cmt">// Placement price modification
   TRADE_EVENT_FLAG_SL             = class="num">2048,    class=class="str">"cmt">// Executed by StopLoss
   TRADE_EVENT_FLAG_TP             = class="num">4096,    class=class="str">"cmt">// Executed by TakeProfit
   TRADE_EVENT_FLAG_ORDER_MODIFY   = class="num">8192,    class=class="str">"cmt">// Order modification
   TRADE_EVENT_FLAG_POSITION_MODIFY = class="num">16384,  class=class="str">"cmt">// Position modification
  };

交易事件枚举的成员排布逻辑

在 MT5 的自定义交易事件处理里，用一组枚举常量来标记「发生了什么类型的账户动作」。前几个是基础事件：0 表示无事件，接着是挂单的放置与移除，这两个不依赖成交类型。中间一段枚举成员刻意和 ENUM_DEAL_TYPE 对齐，注释里写明顺序不能改、不能增删——比如 TRADE_EVENT_ACCOUNT_CREDIT 直接等于 DEAL_TYPE_CREDIT（数值 3），TRADING_EVENT_TAX 等于 DEAL_TAX，后面的余额类事件则按 DEAL_TAX+1、DEAL_TAX+2 递推。这样写是为了让事件 ID 和底层成交类型保持映射，省去运行时转换。尾部那段属于「可自由调整区」，注释允许改顺序、加删常量。例如挂单被价格激活写成 DEAL_TAX+3，部分激活则顺延枚举值由编译器自动分配。实盘跑 EA 时，若你自行扩展了事件类型，只动这一区就不会破坏和成交类型的硬绑定。外汇与贵金属杠杆高，事件监听逻辑若漏掉余额类扣费（如每日佣金 DEAL_TAX+1 区之后），可能让风控信号延迟，账户浮盈计算出现偏差的概率会上升。

MQL5 / C++

  TRADE_EVENT_NO_EVENT = class="num">0,                                      class=class="str">"cmt">// No trading event
  TRADE_EVENT_PENDING_ORDER_PLASED,                               class=class="str">"cmt">// Pending order placed
  TRADE_EVENT_PENDING_ORDER_REMOVED,                              class=class="str">"cmt">// Pending order removed
class=class="str">"cmt">//--- enumeration members matching the ENUM_DEAL_TYPE enumeration members
class=class="str">"cmt">//--- (constant order below should not be changed, no constants should be added/deleted)
  TRADE_EVENT_ACCOUNT_CREDIT = DEAL_TYPE_CREDIT,                  class=class="str">"cmt">// Accruing credit(class="num">3)
  TRADE_EVENT_ACCOUNT_CHARGE,                                     class=class="str">"cmt">// Additional charges
  TRADE_EVENT_ACCOUNT_CORRECTION,                                 class=class="str">"cmt">// Correcting entry
  TRADE_EVENT_ACCOUNT_BONUS,                                      class=class="str">"cmt">// Accruing bonuses
  TRADE_EVENT_ACCOUNT_COMISSION,                                  class=class="str">"cmt">// Additional commissions
  TRADE_EVENT_ACCOUNT_COMISSION_DAILY,                            class=class="str">"cmt">// Commission charged at the end of a trading day
  TRADE_EVENT_ACCOUNT_COMISSION_MONTHLY,                          class=class="str">"cmt">// Commission charged at the end of a trading month
  TRADE_EVENT_ACCOUNT_COMISSION_AGENT_DAILY,                      class=class="str">"cmt">// Agent commission charged at the end of a trading day
  TRADE_EVENT_ACCOUNT_COMISSION_AGENT_MONTHLY,                    class=class="str">"cmt">// Agent commission charged at the end of a month
  TRADE_EVENT_ACCOUNT_INTEREST,                                   class=class="str">"cmt">// Accrued interest on free funds
  TRADE_EVENT_BUY_CANCELLED,                                      class=class="str">"cmt">// Canceled buy deal
  TRADE_EVENT_SELL_CANCELLED,                                     class=class="str">"cmt">// Canceled sell deal
  TRADE_EVENT_DIVIDENT,                                           class=class="str">"cmt">// Accruing dividends
  TRADE_EVENT_DIVIDENT_FRANKED,                                   class=class="str">"cmt">// Accruing franked dividends
  TRADE_EVENT_TAX                 = DEAL_TAX,                      class=class="str">"cmt">// Tax
class=class="str">"cmt">//--- constants related to the DEAL_TYPE_BALANCE deal type from the DEAL_TYPE_BALANCE enumeration
  TRADE_EVENT_ACCOUNT_BALANCE_REFILL     = DEAL_TAX+class="num">1,            class=class="str">"cmt">// Replenishing account balance
  TRADE_EVENT_ACCOUNT_BALANCE_WITHDRAWAL = DEAL_TAX+class="num">2,            class=class="str">"cmt">// Withdrawing funds from an account
class=class="str">"cmt">//--- Remaining possible trading events
class=class="str">"cmt">//--- (constant order below can be changed, constants can be added/deleted)
  TRADE_EVENT_PENDING_ORDER_ACTIVATED     = DEAL_TAX+class="num">3,           class=class="str">"cmt">// Pending order activated by price
  TRADE_EVENT_PENDING_ORDER_ACTIVATED_PARTIAL,                    class=class="str">"cmt">// Pending order partially activated by price

「逐笔成交事件枚举里的高频钩子」

在 MT5 的 CTrade/HistoryDeal 事件体系里，成交动作被拆成了几十个细粒度枚举。上面这段列出的是其中与持仓生命周期直接相关的子集：从整仓建仓 TRADE_EVENT_POSITION_OPENED，到部分建仓 TRADE_EVENT_POSITION_OPENED_PARTIAL，再到整仓平仓、被反向单吃掉、被 SL/TP 触发等，合计覆盖了 19 个持仓类事件常量。黄色高亮的 7 个 TRADE_EVENT_MODIFY_ORDER_* 系列，是挂单改价事件，而不是持仓事件。它们只在你用 OrderModify 改 pending order 的 price / SL / TP 组合时触发，回测里若想统计「改单后胜率偏移」，必须单独监听这组，不能和持仓平仓事件混算。实盘写 EA 时，建议把持仓类事件和挂单改价类事件分两个 switch 分支处理。比如用 HistoryDealGetInteger(deal_ticket, DEAL_ENTRY) 配合事件枚举，能在成交回执里精确区分「部分平仓被 TP 命中」(TRADE_EVENT_POSITION_CLOSED_PARTIAL_BY_TP) 与「整仓被 TP 命中」(TRADE_EVENT_POSITION_CLOSED_BY_TP)，外汇与贵金属波动跳空频繁，这种区分对测算真实滑点有概率层面的价值，但相关策略仍属高风险。

MQL5 / C++

  TRADE_EVENT_POSITION_OPENED,                                                                     class=class="str">"cmt">// Position opened
  TRADE_EVENT_POSITION_OPENED_PARTIAL,                                                               class=class="str">"cmt">// Position opened partially
  TRADE_EVENT_POSITION_CLOSED,                                                                       class=class="str">"cmt">// Position closed
  TRADE_EVENT_POSITION_CLOSED_BY_POS,                                                                class=class="str">"cmt">// Position closed partially
  TRADE_EVENT_POSITION_CLOSED_BY_SL,                                                                 class=class="str">"cmt">// Position closed by StopLoss
  TRADE_EVENT_POSITION_CLOSED_BY_TP,                                                                 class=class="str">"cmt">// Position closed by TakeProfit
  TRADE_EVENT_POSITION_REVERSED_BY_MARKET,                                                           class=class="str">"cmt">// Position reversal by a new deal(netting)
  TRADE_EVENT_POSITION_REVERSED_BY_PENDING,                                                          class=class="str">"cmt">// Position reversal by activating a pending order(netting)
  TRADE_EVENT_POSITION_REVERSED_BY_MARKET_PARTIAL,                                                   class=class="str">"cmt">// Position reversal by partial market order execution(netting)
  TRADE_EVENT_POSITION_REVERSED_BY_PENDING_PARTIAL,                                                  class=class="str">"cmt">// Position reversal by partial pending order activation(netting)
  TRADE_EVENT_POSITION_VOLUME_ADD_BY_MARKET,                                                         class=class="str">"cmt">// Added volume to a position by a new deal(netting)
  TRADE_EVENT_POSITION_VOLUME_ADD_BY_MARKET_PARTIAL,                                                 class=class="str">"cmt">// Added volume to a position by partial activation of a market order(netting)
  TRADE_EVENT_POSITION_VOLUME_ADD_BY_PENDING,                                                        class=class="str">"cmt">// Added volume to a position by activating a pending order(netting)
  TRADE_EVENT_POSITION_VOLUME_ADD_BY_PENDING_PARTIAL,                                                class=class="str">"cmt">// Added volume to a position by partial activation of a pending order(netting)
  TRADE_EVENT_POSITION_CLOSED_PARTIAL,                                                               class=class="str">"cmt">// Position closed partially
  TRADE_EVENT_POSITION_CLOSED_PARTIAL_BY_POS,                                                        class=class="str">"cmt">// Position closed partially by an opposite one
  TRADE_EVENT_POSITION_CLOSED_PARTIAL_BY_SL,                                                         class=class="str">"cmt">// Position closed partially by StopLoss
  TRADE_EVENT_POSITION_CLOSED_PARTIAL_BY_TP,                                                         class=class="str">"cmt">// Position closed partially by TakeProfit
  TRADE_EVENT_TRIGGERED_STOP_LIMIT_ORDER,                                                            class=class="str">"cmt">// StopLimit order activation
  TRADE_EVENT_MODIFY_ORDER_PRICE,                                                                    class=class="str">"cmt">// Changing order price
  TRADE_EVENT_MODIFY_ORDER_PRICE_STOP_LOSS,                                                          class=class="str">"cmt">// Changing order and StopLoss price 
  TRADE_EVENT_MODIFY_ORDER_PRICE_TAKE_PROFIT,                                                        class=class="str">"cmt">// Changing order and TakeProfit price
  TRADE_EVENT_MODIFY_ORDER_PRICE_STOP_LOSS_TAKE_PROFIT,                                              class=class="str">"cmt">// Changing order, StopLoss and TakeProfit price
  TRADE_EVENT_MODIFY_ORDER_STOP_LOSS_TAKE_PROFIT,                                                    class=class="str">"cmt">// Changing order&class="macro">#x27;s StopLoss and TakeProfit price
  TRADE_EVENT_MODIFY_ORDER_STOP_LOSS,                                                                class=class="str">"cmt">// Changing order&class="macro">#x27;s StopLoss

◍ 改单与事件状态的枚举划分

在 MT5 的订单事件体系里，挂单止盈改动和持仓止损止盈改动走的是不同枚举值。TRADE_EVENT_MODIFY_ORDER_TAKE_PROFIT 只管挂单 TP 调整，而 TRADE_EVENT_MODIFY_POSITION_STOP_LOSS_TAKE_PROFIT 等四个值覆盖持仓 SL/TP 的各类变更，写监听器时不能混用。事件状态枚举 ENUM_EVENT_STATUS 把动作归为六类：MARKET_POSITION（开仓/加仓/部分平仓/反转）、MARKET_PENDING（挂单放置）、HISTORY_PENDING（挂单撤销）、HISTORY_POSITION（持仓平仓）、BALANCE（出入金及 DEAL 类操作）、以及 EVENT_STATUS_MODIFY（订单或持仓的修改事件）。修改类事件单独用 EVENT_STATUS_MODIFY 标记，意味着你在 OnTradeTransaction 里若只筛这个状态，就能精准捕获所有 SL/TP 重设，而不会和开平仓噪音混在一起。外汇与贵金属杠杆高，修改止损本身不预示方向，只是风险参数的重排。事件原因枚举 ENUM_EVENT_REASON 里，净仓模式下的反转有四种细分：完整反转、部分执行反转、挂单激活反转、挂单部分执行反转。它们都集中在枚举前半段，后续才接 EVENT_REASON_ACTIVATED_PENDING 这类挂单激活原因。

MQL5 / C++

enum ENUM_TRADE_EVENT
  {
  TRADE_EVENT_MODIFY_ORDER_TAKE_PROFIT,                    class=class="str">"cmt">// Changing order&class="macro">#x27;s TakeProfit
  TRADE_EVENT_MODIFY_POSITION_STOP_LOSS_TAKE_PROFIT,       class=class="str">"cmt">// Changing position&class="macro">#x27;s StopLoss and TakeProfit
  TRADE_EVENT_MODIFY_POSITION_STOP_LOSS,                   class=class="str">"cmt">// Changing position&class="macro">#x27;s StopLoss
  TRADE_EVENT_MODIFY_POSITION_TAKE_PROFIT,                 class=class="str">"cmt">// Changing position&class="macro">#x27;s TakeProfit
  };

enum ENUM_EVENT_STATUS
  {
  EVENT_STATUS_MARKET_POSITION,                            class=class="str">"cmt">// Market position event(opening, partial opening, partial closing, adding volume, reversal)
  EVENT_STATUS_MARKET_PENDING,                             class=class="str">"cmt">// Market pending order event(placing)
  EVENT_STATUS_HISTORY_PENDING,                            class=class="str">"cmt">// Historical pending order event(removal)
  EVENT_STATUS_HISTORY_POSITION,                           class=class="str">"cmt">// Historical position event(closing)
  EVENT_STATUS_BALANCE,                                    class=class="str">"cmt">// Balance operation event(accruing balance, withdrawing funds and events from the ENUM_DEAL_TYPE enumeration)
  EVENT_STATUS_MODIFY                                      class=class="str">"cmt">// Order/position modification event
  };

enum ENUM_EVENT_REASON
  {
  EVENT_REASON_REVERSE,                                    class=class="str">"cmt">// Position reversal(netting)
  EVENT_REASON_REVERSE_PARTIALLY,                          class=class="str">"cmt">// Position reversal by partial request execution(netting)
  EVENT_REASON_REVERSE_BY_PENDING,                         class=class="str">"cmt">// Position reversal by pending order activation(netting)
  EVENT_REASON_REVERSE_BY_PENDING_PARTIALLY,               class=class="str">"cmt">// Position reversal in case of a pending order partial execution(netting)
  EVENT_REASON_ACTIVATED_PENDING,                          class=class="str">"cmt">// Pending order activation
  };

交易事件触发原因的枚举清单

在 MT5 的订单与成交事件回调里，系统会用一组 ENUM_EVENT_REASON 常量告诉你这笔动作到底因何发生。上面这段枚举覆盖了挂单部分激活、StopLimit 触发、改单、撤单、过期，以及净仓模式下加仓、止盈止损平仓、反向持仓平仓等几乎所有情形。注意 EVENT_REASON_MODIFY 这种被高亮标记的常量——它专门对应订单或仓位的参数修改事件，如果你在 OnTradeTransaction 里只监听激活和成交，就会漏掉交易者手动挪止损带来的仓位状态变化。对于外汇和贵金属这类高波动品种，部分成交常量（如 EVENT_REASON_DONE_PARTIALLY、EVENT_REASON_DONE_SL_PARTIALLY）出现频率并不低，尤其在流动性稀薄的新闻秒里，一次 2 手市价单可能拆成 3 次部分成交。读懂这些 reason 才能把复盘脚本写准。下面把原文枚举原样列出，方便你直接贴进 MT5 头文件比对：

MQL5 / C++

  EVENT_REASON_ACTIVATED_PENDING_PARTIALLY,              class=class="str">"cmt">// Pending order partial activation
  EVENT_REASON_STOPLIMIT_TRIGGERED,                       class=class="str">"cmt">// StopLimit order activation
  EVENT_REASON_MODIFY,                                    class=class="str">"cmt">// Modification
  EVENT_REASON_CANCEL,                                    class=class="str">"cmt">// Cancelation
  EVENT_REASON_EXPIRED,                                   class=class="str">"cmt">// Order expiration
  EVENT_REASON_DONE,                                      class=class="str">"cmt">// Request executed in full
  EVENT_REASON_DONE_PARTIALLY,                            class=class="str">"cmt">// Request executed partially
  EVENT_REASON_VOLUME_ADD,                                class=class="str">"cmt">// Add volume to a position(netting)
  EVENT_REASON_VOLUME_ADD_PARTIALLY,                      class=class="str">"cmt">// Add volume to a position by a partial request execution(netting)
  EVENT_REASON_VOLUME_ADD_BY_PENDING,                     class=class="str">"cmt">// Add volume to a position when a pending order is activated(netting)
  EVENT_REASON_VOLUME_ADD_BY_PENDING_PARTIALLY,           class=class="str">"cmt">// Add volume to a position when a pending order is partially executed(netting)
  EVENT_REASON_DONE_SL,                                   class=class="str">"cmt">// Closing by StopLoss
  EVENT_REASON_DONE_SL_PARTIALLY,                         class=class="str">"cmt">// Partial closing by StopLoss
  EVENT_REASON_DONE_TP,                                   class=class="str">"cmt">// Closing by TakeProfit
  EVENT_REASON_DONE_TP_PARTIALLY,                         class=class="str">"cmt">// Partial closing by TakeProfit
  EVENT_REASON_DONE_BY_POS,                               class=class="str">"cmt">// Closing by an opposite position
  EVENT_REASON_DONE_PARTIALLY_BY_POS,                     class=class="str">"cmt">// Partial closing by an opposite position
  EVENT_REASON_DONE_BY_POS_PARTIALLY,                     class=class="str">"cmt">// Partial closing by an opposite position
  EVENT_REASON_DONE_PARTIALLY_BY_POS_PARTIALLY,           class=class="str">"cmt">// Closing an opposite position by a partial volume
  class=class="str">"cmt">//--- Constants related to DEAL_TYPE_BALANCE deal type from the ENUM_DEAL_TYPE enumeration
  EVENT_REASON_BALANCE_REFILL,                            class=class="str">"cmt">// Refilling the balance
  EVENT_REASON_BALANCE_WITHDRAWAL,                        class=class="str">"cmt">// Withdrawing funds from the account

「账户事件原因枚举与属性偏移量」

在 MT5 的交易事件体系里，TRADE_EVENT_ACCOUNT_CREDIT 这类账户事件的原因常量，并不是从 0 开始排的。它们相对 ENUM_DEAL_TYPE 整体做了 +13 的偏移，而代码里用宏 REASON_EVENT_SHIFT 定义为 EVENT_REASON_ACCOUNT_CREDIT - 3，实际就是把首枚账户原因常量锚到正确的枚举位上。下面这段枚举列出了信用入账、附加收费、分红、税务等 16 个具体原因。比如 EVENT_REASON_ACCOUNT_CREDIT 对应信用注入，EVENT_REASON_DIVIDENT 对应股息计提，EVENT_REASON_TAX 对应税务扣除；日终和月终的佣金也分别有 DAILY 与 MONTHLY 两种细分。复制进 MT5 头文件即可直接参与事件过滤。事件自身的浮点属性另由 ENUM_EVENT_PROP_DOUBLE 承载，起点接在 EVENT_PROP_INTEGER_TOTAL 之后。EVENT_PROP_PRICE_EVENT 记录事件触发时的成交价，EVENT_PROP_PRICE_OPEN / CLOSE / SL 则分别指向开仓、平仓与止损价。写 EA 监听账户变动时，用对偏移宏才不会把信用到账误判成普通成交。

MQL5 / C++

class=class="str">"cmt">//--- List of constants is relevant to TRADE_EVENT_ACCOUNT_CREDIT from the ENUM_TRADE_EVENT enumeration and shifted to +class="num">13 relative to ENUM_DEAL_TYPE(EVENT_REASON_ACCOUNT_CREDIT-class="num">3)
EVENT_REASON_ACCOUNT_CREDIT,                                                 class=class="str">"cmt">// Accruing credit
EVENT_REASON_ACCOUNT_CHARGE,                                                 class=class="str">"cmt">// Additional charges
EVENT_REASON_ACCOUNT_CORRECTION,                                             class=class="str">"cmt">// Correcting entry
EVENT_REASON_ACCOUNT_BONUS,                                                  class=class="str">"cmt">// Accruing bonuses
EVENT_REASON_ACCOUNT_COMISSION,                                              class=class="str">"cmt">// Additional commissions
EVENT_REASON_ACCOUNT_COMISSION_DAILY,                                        class=class="str">"cmt">// Commission charged at the end of a trading day
EVENT_REASON_ACCOUNT_COMISSION_MONTHLY,                                      class=class="str">"cmt">// Commission charged at the end of a trading month
EVENT_REASON_ACCOUNT_COMISSION_AGENT_DAILY,                                  class=class="str">"cmt">// Agent commission charged at the end of a trading day
EVENT_REASON_ACCOUNT_COMISSION_AGENT_MONTHLY,                                class=class="str">"cmt">// Agent commission charged at the end of a month
EVENT_REASON_ACCOUNT_INTEREST,                                               class=class="str">"cmt">// Accruing interest on free funds
EVENT_REASON_BUY_CANCELLED,                                                  class=class="str">"cmt">// Canceled buy deal
EVENT_REASON_SELL_CANCELLED,                                                 class=class="str">"cmt">// Canceled sell deal
EVENT_REASON_DIVIDENT,                                                       class=class="str">"cmt">// Accruing dividends
EVENT_REASON_DIVIDENT_FRANKED,                                               class=class="str">"cmt">// Accruing franked dividends
EVENT_REASON_TAX                                                             class=class="str">"cmt">// Tax
};
class="macro">#define REASON_EVENT_SHIFT(EVENT_REASON_ACCOUNT_CREDIT-class="num">3)
class=class="str">"cmt">//+------------------------------------------------------------------+
class=class="str">"cmt">//+------------------------------------------------------------------+
class=class="str">"cmt">//| Event&class="macro">#x27;s real properties                                          |
class=class="str">"cmt">//+------------------------------------------------------------------+
enum ENUM_EVENT_PROP_DOUBLE
  {
   EVENT_PROP_PRICE_EVENT = EVENT_PROP_INTEGER_TOTAL,      class=class="str">"cmt">// Price an event occurred at
   EVENT_PROP_PRICE_OPEN,                                  class=class="str">"cmt">// Order/deal/position open price
   EVENT_PROP_PRICE_CLOSE,                                 class=class="str">"cmt">// Order/deal/position close price
   EVENT_PROP_PRICE_SL                                     class=class="str">"cmt">// StopLoss order/deal/position price
  };

把事件枚举维护交给小布

这些诊断小布盯盘的 AIGC 已内置，打开对应品种页即可看到订单持仓属性变动的实时标注，你只需专注事件逻辑设计。

←

轻松快捷开发 MetaTrader 程序的函数库(第八部分):订单和持仓修改事件（基础篇）

→

轻松快捷开发 MetaTrader 程序的函数库(第八部分):订单和持仓修改事件·综合运用

常见问题

因为后续搜索和排序需要用到全部整数型订单属性，例如方向类型，去掉跳过才能覆盖在场集合的单向挂单筛选。

小布盯盘的品种页会呈现订单持仓变动的实时记录，虽不暴露底层函数库代码，但可对照你派生的修改事件类验证逻辑是否漏捕。

它为从 CEvent 派生的新类提供独立状态标识，使交易事件标志能区分开单、下单与修改，避免事件类型混淆。

会，宏替换计算需同步调整以正确查找首个字符串型属性索引，否则枚举常量列表中的排序条件会错位。

常见如止损止盈重设、挂单价格调整、持仓加仓减仓等，具体依策略需要往事件原因枚举里追加常量。

轻松快捷开发 MetaTrader 程序的函数库(第八部分):订单和持仓修改事件·进阶篇

◍ 账户交易事件的位标志枚举

交易事件枚举的成员排布逻辑

「逐笔成交事件枚举里的高频钩子」

◍ 改单与事件状态的枚举划分

交易事件触发原因的枚举清单

「账户事件原因枚举与属性偏移量」

常见问题

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