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[](https://travis-ci.org/agateau/doxyqml)
[](https://coveralls.io/github/agateau/doxyqml?branch=master)
# Goals
Doxyqml lets you use Doxygen to document your QML classes.
It integrates as a Doxygen input filter to turn .qml files into pseudo-C++
which Doxygen can then use to generate documentation.
# Installing
Doxyqml uses the standard Python setup tools, so you can install it with pip:
pip3 install doxyqml
or manually with:
python3 setup.py install
# Telling Doxygen to use Doxyqml
To tell Doxygen about Doxyqml you must make a few changes to your Doxygen
configuration file.
1. Add the .qml extension to the `FILTER_PATTERNS` key:
FILTER_PATTERNS = *.qml=doxyqml
Note: on Windows Doxyqml installs itself in the `Scripts` folder of your
Python installation. If this folder is not in the PATH, either add it or use
the full path to Doxyqml here (but that is less portable across machines)
2. Add the .qml extension to `FILE_PATTERNS`:
FILE_PATTERNS = *.qml
3. Since Doxygen 1.8.8, you must also add the .qml extension to
`EXTENSION_MAPPING`:
EXTENSION_MAPPING = qml=C++
# Documenting types
QML is partially-typed: functions are untyped, properties and signals are.
Doxyqml provides a way to define types when they are missing or not precise
enough.
## Functions
Functions in QML are untyped, but you can define types in the documentation
like this:
```qml
/**
* Create a user
* @param type:string firstname User firstname
* @param type:string lastname User lastname
* @param type:int User age
* @return type:User The User object
*/
function createUser(firstname, lastname, age);
```
## Properties
QML properties are typed, so Doxyqml uses them by default. You can nevertheless
overwrite the type using the same `type:<name>` syntax. This is useful to
document property aliases:
```qml
/** type:string The user lastname */
property alias lastname: someObject.text
```
## Signals
QML signals are typed, so there is no need to use the `type:<name>` syntax to
document their parameters. Using `type:<name>` syntax in signal documentation
will not work: Doxyqml won't strip it out and Doxygen will confuse it with the
parameter name.
```qml
/**
* User just logged in
* @param user The user which logged in
*/
signal loggedIn(User user)
```
## Extracting internal elements
QML elements with an id are exported as private member variables. If you
set the `EXTRACT_ALL` and `EXTRACT_PRIVATE` Doxygen keys to `YES`, then
these elements will be visible in the generated documentation.
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