Question 1

iui vs druid for Rust GUI development

Accepted Answer

iui focuses on native look and feel via libui bindings with a minimal footprint, while druid is a Rust-native framework with more widgets and a data-driven architecture. Choose iui for lightweight native apps, but druid for richer custom UIs and Rust-centric design.

Question 2

How to handle button clicks and events in iui

Accepted Answer

Use the on_clicked method on controls like Button with closures, leveraging Rust's concurrency protections. Events are processed via UI::main or an EventLoop for more control, as shown in the examples directory.

Question 3

Can I customize the theme or styles in iui applications

Accepted Answer

No, iui strictly uses platform-native APIs for appearance, so theming is limited to OS defaults. For custom styles, you'd need to modify the underlying libui or use a different toolkit with styling support.

Question 4

Is iui good for building complex desktop applications

Accepted Answer

It's best suited for simple utilities or prototypes due to its minimal widget set. For complex apps with advanced features like tabs or dialogs, you might find it lacking and need to extend it or choose a more feature-rich framework.

Question 5

How to distribute iui apps on multiple platforms

Accepted Answer

iui ships as a single shared library, so you can bundle it with your executable. For cross-platform distribution, ensure libui is built for each target, and follow platform-specific packaging guidelines, as noted in the building section.

Question 6

What are the common issues when building iui from source

Accepted Answer

Building ui-sys requires handling the libui submodule, which can fail if dependencies like CMake or platform SDKs are missing. Disabling fetch or build features may help, but it adds complexity compared to pure Rust crates.

libui-rs

What is libui-rs?

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