From 74a64b6fbdd0dec41dc2ab3f77792b01a5717543 Mon Sep 17 00:00:00 2001
From: Vyacheslav Demidyuk <vdemydiuk@gmail.com>
Date: Thu, 13 Mar 2025 12:32:54 +0200
Subject: [PATCH] PyMtApi5: implemented function ChartGetDouble

---
 PyMtApi5/client.py       | 10 ++++++++++
 PyMtApi5/mt5apiclient.py |  7 +++++++
 2 files changed, 17 insertions(+)

diff --git a/PyMtApi5/client.py b/PyMtApi5/client.py
index d8c9bde4..9224d8bb 100644
--- a/PyMtApi5/client.py
+++ b/PyMtApi5/client.py
@@ -73,6 +73,7 @@ class Mt5ApiApp:
             "ChartSetDouble": self.process_chart_set_double,
             "ChartSetInteger": self.process_chart_set_integer,
             "ChartSetString": self.process_chart_set_string,
+            "ChartGetDouble": self.process_chart_get_double,
         }
 
     def on_disconnect(self, error_msg=None):
@@ -545,6 +546,15 @@ class Mt5ApiApp:
         result = mtapi.chart_set_string(int(pieces[0]), prop_id, pieces[2])
         print(f"> ChartSetString: response = {result}")
 
+    def process_chart_get_double(self, mtapi, parameters):
+        pieces = parameters.split(" ", 2)
+        if len(pieces) != 3 or not pieces[0] or not pieces[1] or not pieces[2]:
+            print(f"! Invalid parameters for command ChartGetDouble: {parameters}")
+            return
+        prop_id = mt5enums.ENUM_CHART_PROPERTY_DOUBLE(int(pieces[1]))
+        result = mtapi.chart_get_double(int(pieces[0]), prop_id, int(pieces[2]))
+        print(f"> ChartGetDouble: 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 0c29a657..5d84ba37 100644
--- a/PyMtApi5/mt5apiclient.py
+++ b/PyMtApi5/mt5apiclient.py
@@ -357,6 +357,8 @@ class Mt5ApiClient:
             "Count": count,
         }
         res = self.__send_command(self.__get_default_expert(), Mt5CommandType.CopyTicks, cmd_params)
+        if res is None:
+            return None
         ticks = [MqlTick(obj) for obj in res]
         return ticks
 
@@ -539,6 +541,11 @@ class Mt5ApiClient:
         cmd_params = {"ChartId": chart_id, "PropId": prop_id, "Value": value}
         return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartSetString, cmd_params)
 
+    # ChartGetDouble
+    def chart_get_double(self, chart_id, prop_id: ENUM_CHART_PROPERTY_DOUBLE, sub_window=0):
+        cmd_params = {"ChartId": chart_id, "PropId": prop_id, "SubWindow": sub_window}
+        return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartGetDouble, cmd_params)
+
     # Private methods
 
     def __event_thread_func(self):