science

XML Resource

XML Resource is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand XML Resource rather than just read about it. In short: XRC, or XML Resource, or XML Based Resource System is a cross-platform XML-based user interface markup language used by wxWidgets. XRC allows graphical user interface elements, such as dialogs, menu bars and toolbars, to be stored as XML, which can be loaded into the application at run-time or translated into a target programming language and compiled.

Key takeaways

XML Resource belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect XML Resource to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of XML Resource from memory before moving on to harder problems.

Reference excerpt

XRC, or XML Resource, or XML Based Resource System is a cross-platform XML-based user interface markup language used by wxWidgets. XRC allows graphical user interface elements, such as dialogs, menu bars and toolbars, to be stored as XML, which can be loaded into the application at run-time or translated into a target programming language and compiled.

Advantages Recompiling and linking is not always necessary when changing the interface. Separates the interface from the program logic. Ability to choose between different resource files at run time. XRC is a wxWidgets standard, so it can be generated and processed by any program that understands it. They can be written (or generated by other program) once, and used in any supported language which have wxWidgets bindings. XML is easier to parse than most programming languages. Existing XML editors can be used to edit XRC files.

Tools Specialized software tools, generally graphical user interface builder or rapid application development (RAD), allow creation of XRC files, among them are:

wxFormBuilder XRCed wxDesigner DialogBlocks wxSmith (Code::Blocks plugin)

See also wxWidgets wxGlade - an open source GUI designer that understands and generates XRC List of user interface markup languages XUL QML

References

External links XML Based Resource System overview (current) Archived 2011-07-10 at the Wayback Machine XML-based resource system overview (stable) XRCed - an XRC editor XRC Tutorial

Worked examples

Example 1 — a first encounter with XML Resource

Start with the simplest possible case. Write down what XML Resource claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to XML Resource before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about XML Resource ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of XML Resource

In research: XML Resource appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses XML Resource in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: XML Resource is common in secondary-school and first-year university syllabi. It links to neighbouring topics Programming language topic stubs, User interface markup languages, WxWidgets, so understanding it makes those chapters shorter.
In everyday life: Look for XML Resource outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study XML Resource in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what XML Resource means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain XML Resource out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is XML Resource in simple terms?

Why does XML Resource matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study XML Resource?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on XML Resource.