Today we will learn to write custom indicators. We will get acquainted with the classification of indicator features, will see how these features influence the indicator, will learn about new functions and optimization, and, finally, we will write our own indicators. Moreover, at the end of the article you will find advice on the programming style. If this is the first article "for newbies" that you are reading, perhaps it would be better for you to read the previous ones.
For this example, I will be describing a way to achieve the following: Create a Button for generating the CSV. Listen for Events so that we can detect when the button has been clicked. Parse the Objects list and write the name and description from objects to CSV file.
If you are unable to complete step 2, skip to step 3, and look at the code inside the OnChartEventthen customize it for when you want to write the CSV file.
However, be aware that it will be a lot of file writing if you are writing the file every time the OnCalculate Event occurs. I named my example as iExposureTest. This is one of our easiest steps, just add the input strings for our Folder and CSV file. I added these next to the other input variable.
Create the CSV button. Include the header for ChartObjectPanel. I chose to place my include line directly above the input variables. Inside OnInitadd this below: This was mainly created so we can generate the CSV from a click.
It should look similar to the image below. If you have the CSV button, then we are finished with Step 2. Listen for Events and capture that the CSV button was clicked.
We are able to capture the event we need by using the built in OnChartEvent. We will create that in step 4. Parse the Objects list and write the name and description to CSV. This is the final part to solve your question. Add this function to the end of our code example.
The order of the output and objects may not be what your goal is, so modify accordingly.This is the fourth article from the series "MQL4 Languages for Newbies".
Today we will learn to write custom indicators. We will get acquainted with the classification of indicator features, will see how these features influence the indicator, will learn about new functions and optimization, and.
File Operations. In MQL4, it is possible to work with files containing a certain set of information. It may become necessary to write information in a file or to read it from a file for several reasons.
Arrays. A large part of information processed by application programs is contained in arrays. Concept of Arrays. Array is an arranged set of values of one-type variables that have a common name.
Arrays can be one-dimensional and multidimensional.
Mar 21, · I create an array with daily ranges (OK as well) and try to use iMAOnArray to smoothe it. The problem I keep having is that the indicator seems to be using oldest ranges for the latest bars, because the values for the current bar changes when I load new bars into history.
FileWriteArray - File Functions - MQL4 Reference. The function writes arrays of any type except for string to a BIN file (can be an array of structures not containing strings or dynamic arrays). uint FileWriteArray Write n elements of the array to file |.
File Write Array Mql4. I propose to discuss it! Click to post on this threadPossible pre-conditions for start the discussion: 1). File Operations.