Rust for Windows Installer Custom Actions

Writing [custom actions] for [Windows Installer] can be difficult enough already, but using Rust can help mitigate some potential issues concerning memory and handle leaks.

These APIs roughly mimic the Windows Installer [automation interface] for those APIs that can be called in immediate and deferred custom actions.

Example

You can define custom actions in Rust using its foreign function interface like:

```rust use msica::*;

const ERROR_SUCCESS: u32 = 0;

[no_mangle]

pub extern "C" fn MyCustomAction(h: MSIHANDLE) -> u32 {

let session = Session::from(h);
let record = Record::with_fields(
    Some("this is [1] [2]"),
    vec![Field::IntegerData(1), Field::StringData("example".to_owned())],
);
session.message(MessageType::User, &record);

ERROR_SUCCESS

} ```

License

This project is licensed under the MIT license.