# wmi

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WMI (Windows Management Instrumentation) crate for rust.

```toml
# Cargo.toml
[dependencies]
wmi = "*"
```

## Examples

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

```rust
#![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

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

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

## Async Queries

WMI supports async queries, with methods
like [ExecAsyncQuery](https://docs.microsoft.com/en-us/windows/win32/api/wbemcli/nf-wbemcli-iwbemservices-execqueryasync).

```rust
#![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

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

at your option.
