Support Board
Date/Time: Thu, 02 Jul 2026 16:48:23 +0000
Post From: MDI child window creation errors + daily timeframe data not loading with many chartbooks o
| [2026-07-02 10:50:57] |
| User368741 - Posts: 106 |
|
I'm running into two related issues that appear when I have a large number of chartbooks open at once (currently around 60). 1. Repeating "CreateDetachableWindow" errors in the Message Log The following error is being logged repeatedly, roughly every 10 seconds: c_Chart::CreateDetachableWindow: Error creating the MDI child window. | Number times message previously added: [varies, ~41–87] A sample from today: 2026-07-02 10:41:42.959 | c_Chart::CreateDetachableWindow: Error creating the MDI child window. | Number times message previously added: 61 2026-07-02 10:43:20.204 | c_Chart::CreateDetachableWindow: Error creating the MDI child window. | Number times message previously added: 71 2026-07-02 10:44:47.405 | c_Chart::CreateDetachableWindow: Error creating the MDI child window. | Number times message previously added: 84 2026-07-02 10:45:35.685 | c_Chart::CreateDetachableWindow: Error creating the MDI child window. | Number times message previously added: 87 The "Number times message previously added" count is high and continuously increasing, so this is happening very frequently. 2. Daily timeframe data not loading on some charts With all ~60 chartbooks open, some of the charts do not display the historical product data on the daily timeframe — I only see the current (most recent) candle rather than the full loaded history. When I close some chartbooks and have fewer open, the same charts then load and display the daily data correctly. This makes me suspect both issues are tied to a resource limit (window handles / GDI objects / memory) being hit when a large number of chartbooks are open simultaneously. Could you please advise on what is causing the MDI child window creation to fail, whether there is a configurable limit I'm exceeding, and what I can do to allow all daily timeframe data to load reliably even with this many chartbooks open |