retrieve version inside AppDesigner appplication (.mlapp file)

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Han Geerligs 2024-5-27

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评论： Han Geerligs 2024-5-29

Does anyone know how to retrieve (programmatically) the version inside an .mlapp file?

This property is available on top level of the GUI, in picture below it is 1.02. I'd like to display it in a text label in the app.

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Answer 1

Image Analyst 2024-5-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2122976-retrieve-version-inside-appdesigner-appplication-mlapp-file#answer_1463886

编辑：Image Analyst 2024-5-27

在 MATLAB Online 中打开

Did you try

	s = ver('MATLAB');
	releaseYear = s.Release(2:end-1);
	releaseVersion = s.Version;
	fprintf('You are using MATLAB Release %s, version number %s.\n', releaseYear, releaseVersion);
    app.yourTextBox.Value = releaseVersion;

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Han Geerligs 2024-5-28

Thanks for responding.

In the meantime I have done some investigation.

It is possible to extract (unzip) the contents of the file <name>,mlapp. In fact this is an OPC container.

When looking at the file /metadata/coreProperties.xml I can obtain the version for the .mlapp file (see below in bold underlined).

I was looking for an API to get this value.

<?xml version="1.0" encoding="UTF-8" standalone="true"?>

-<cp:coreProperties xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dcmitype="http://purl.org/dc/dcmitype/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cp="http://schemas.openxmlformats.org/package/2006/metadata/core-properties">

<dcterms:created xsi:type="dcterms:W3CDTF">2024-03-20T10:09:56Z</dcterms:created>

<dc:creator>Seatools</dc:creator>

<dc:description>PLC/local/Jenkins: Compare and deploy to PLC</dc:description>

<dcterms:modified xsi:type="dcterms:W3CDTF">2024-05-28T06:32:17Z</dcterms:modified>

<dc:title>CompareFiles</dc:title>

<cp:version>1.02</cp:version>

</cp:coreProperties>

Image Analyst 2024-5-28

编辑：Image Analyst 2024-5-28

xml2struct.m

You or others might find the attached utility useful. It reads an XML file into a structure, which is more familiar, convenient, and easy to use for most of us.

Han Geerligs 2024-5-29