Articles
From Basic to Intermediate: Random Access (II) for MetaTrader 5
In this article, we will examine how two slightly different approaches can significantly affect the overall implementation strategy, both in performance and in disk I/O design, while helping to prevent compatibility issues between applications
From Basic to Intermediate: Random Access to Files (I) for MetaTrader 5
In today's article, we will explore random access to file contents for the first time. This applies to both writing and reading information stored in a file. However, since the topic is too broad to cover in a single article, we will limit ourselves here to an introduction to random access
From Basic to Intermediate: FileSave and FileLoad for MetaTrader 5
In today’s article, we will look at several ways to work with the FileSave and FileLoad library functions. Although many people consider them of limited use because of certain limitations or difficulties they create in specific scenarios, properly understanding how these two functions work can save
From Basic to Intermediate: Working with Files in the MetaTrader 5 Sandbox for MetaTrader 5
Do you know what a sandbox is? Do you know how to work with it? If the answer to either of these questions is “no”, read this article to understand the basic operating principle of a sandbox. You will also understand why MetaTrader 5 uses a sandbox to protect the integrity of some of its internal
From Basic to Intermediate: Object Events (IV) for MetaTrader 5
In this article, we will complete what was started in the previous one: a fully interactive way to resize objects directly on the chart. Although many people imagine that creating something like this would require much deeper knowledge of MQL5, you will see that, using simple concepts and basic
From Basic to Intermediate: Object Events (III) for MetaTrader 5
In this article, we will prepare the foundation for what will be covered in the next publication. We will also look at how to make an OBJ_LABEL object fully interactive for editing and moving. In other words, we can change both the text and the position of the OBJ_LABEL object without opening the
From Basic to Intermediate: Object Events (II) for MetaTrader 5
In this article, we will look at how the last three types of events generated by an object work. Understanding this will be very interesting, because in the end we will do something that may seem crazy to many people, but it is entirely possible and produces a very surprising result
From Basic to Intermediate: Object Events (I) for MetaTrader 5
In this article, we will look at three of the six events that MetaTrader 5 can generate when some change occurs to an object on the chart. These events are very useful from the standpoint of user interaction. This is because, without understanding these events, we would have to put in much more
From Basic to Intermediate: Objects (IV) for MetaTrader 5
This is perhaps the most entertaining article so far. The reason is that here we will modify an object already available in MetaTrader 5 in order to create another one that is not originally present on the platform. Of course, what we are going to look at here may seem a little crazy, but it works
From Basic to Intermediate: Objects (III) for MetaTrader 5
In today's article, we will look at how to implement a very attractive and interesting interaction system, especially for those who are just beginning to practice programming in MQL5. There is nothing fundamentally new here. Thanks to my approach to the topic, it will be much easier to understand