From 6a9739ff1ed64fa795a9eea3fbba392fd5ed9de6 Mon Sep 17 00:00:00 2001
From: Vyacheslav Demidyuk <vdemydiuk@gmail.com>
Date: Wed, 19 Feb 2025 16:14:41 +0200
Subject: [PATCH] PyMtApi5: implemented function ChartOpen

---
 PyMtApi5/client.py       | 10 ++++++++++
 PyMtApi5/mt5apiclient.py |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/PyMtApi5/client.py b/PyMtApi5/client.py
index d3a8876c..cef4479a 100644
--- a/PyMtApi5/client.py
+++ b/PyMtApi5/client.py
@@ -64,6 +64,7 @@ class Mt5ApiApp:
             "ChartWindowFind": self.process_chart_window_find,
             "ChartTimePriceToXY": self.process_chart_time_price_to_xy,
             "ChartXYToTimePrice": self.process_chart_xy_to_time_price,
+            "ChartOpen": self.process_chart_open,
         }
 
     def on_disconnect(self, error_msg=None):
@@ -477,6 +478,15 @@ class Mt5ApiApp:
         result = mtapi.chart_xy_to_time_price(int(pieces[0]), int(pieces[1]), int(pieces[2]))
         print(f"> ChartXYToTimePrice: response = {result}")
 
+    def process_chart_open(self, mtapi, parameters):
+        pieces = parameters.split(" ", 1)
+        if len(pieces) != 2 or not pieces[0] or not pieces[1]:
+            print(f"! Invalid parameters for command ChartOpen: {parameters}")
+            return
+        period = mt5enums.ENUM_TIMEFRAMES(int(pieces[1]))
+        result = mtapi.chart_open(pieces[0], period)
+        print(f"> ChartOpen: response = {result}")
+
     def mtapi_command_thread(self, mtapi):
         while mtapi.is_connected():
             filename = "client.cmd"
diff --git a/PyMtApi5/mt5apiclient.py b/PyMtApi5/mt5apiclient.py
index e2a434d7..4a75b19d 100644
--- a/PyMtApi5/mt5apiclient.py
+++ b/PyMtApi5/mt5apiclient.py
@@ -495,6 +495,12 @@ class Mt5ApiClient:
             return (res["Result"]["SubWindow"], res["Result"]["Time"], res["Result"]["Price"])
         return None
 
+    # ChartOpen
+    def chart_open(self, symbol: str, period: ENUM_TIMEFRAMES):
+        cmd_params = {"Symbol": symbol, "Timeframe": period};
+        res = self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartOpen, cmd_params)
+        return res
+
     # Private methods
 
     def __event_thread_func(self):