wmi

WMI (Windows Management Instrumentation) crate for rust.

# Cargo.toml
[dependencies]
wmi = "0.9"

Examples

Queries can be deserialized into a free-form HashMap or a struct:

#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
use serde::Deserialize;
use wmi::{COMLibrary, Variant, WMIConnection, WMIDateTime};
use std::collections::HashMap;

fn main() -> Result<(), Box<dyn std::error::Error>>  {
    let com_con = COMLibrary::new()?;
    let wmi_con = WMIConnection::new(com_con.into())?;
    
    let results: Vec<HashMap<String, Variant>> = wmi_con.raw_query("SELECT * FROM Win32_OperatingSystem")?;
    
    for os in results {
        println!("{:#?}", os);
    }
    
    #[derive(Deserialize, Debug)]
    struct Win32_OperatingSystem {
        Caption: String,
        Name: String,
        CurrentTimeZone: i16,
        Debug: bool,
        EncryptionLevel: u32,
        ForegroundApplicationBoost: u8,
        LastBootUpTime: WMIDateTime,
    }
    
    let results: Vec<Win32_OperatingSystem> = wmi_con.query()?;
    
    for os in results {
        println!("{:#?}", os);
    }
    
    Ok(())
}

chrono vs time

If you prefer to use the time crate instead of the default chrono, include wmi as

[dependencies]
wmi-rs = { version = "0.9", default-features = false, features = ["time"] }

and use the WMIOffsetDateTime wrapper instead of the the WMIDateTime wrapper.

Async Queries

WMI supports async queries, with methods like ExecAsyncQuery.

This crate provides async methods under the async-query flag:

# Cargo.toml
[dependencies]
wmi = { version = "0.9", features = ["async-query"] }

The methods become available on WMIConnection

#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
use serde::Deserialize;
use wmi::{COMLibrary, Variant, WMIConnection, WMIDateTime};
use std::collections::HashMap;
use futures::executor::block_on;

fn main() -> Result<(), Box<dyn std::error::Error>>  {
    let com_con = COMLibrary::new()?;
    let wmi_con = WMIConnection::new(com_con.into())?;
    
    block_on(exec_async_query(&wmi_con))?;
    
    Ok(())
}

async fn exec_async_query(wmi_con: &WMIConnection) -> Result<(), Box<dyn std::error::Error>> {
    let results: Vec<HashMap<String, Variant>> = 
        wmi_con.async_raw_query("SELECT * FROM Win32_OperatingSystem").await?;

    for os in results {
        println!("{:#?}", os);
    }
    
    #[derive(Deserialize, Debug)]
    struct Win32_OperatingSystem {
        Caption: String,
        Name: String,
        CurrentTimeZone: i16,
        Debug: bool,
        EncryptionLevel: u32,
        ForegroundApplicationBoost: u8,
        LastBootUpTime: WMIDateTime,
    }
    
    let results: Vec<Win32_OperatingSystem> = wmi_con.async_query().await?;
    
    for os in results {
        println!("{:#?}", os);
    }
    
    Ok(())
}

License

The wmi crate is licensed under either of

Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.