Windy

Windows strings library

This crate supports AString (ANSI string) and WString (Unicode string).

Features

• ANSI string(AString)
• Unicode string(WString)
• Interconversion between AString, WString and String.

Example

use windy::*;

#[allow(non_snake_case)]
extern "system" {
    fn GetEnvironmentVariableA(lpName: *const u8, lpBuffer: *mut u8, nSize: u32) -> u32;
    fn GetEnvironmentVariableW(lpName: *const u16, lpBuffer: *mut u16, nSize: u32) -> u32;
}

fn get_environment_variable_a() {
    let name = AString::from_str("PATH").unwrap();
    let mut buf = Vec::with_capacity(0x1000);
    unsafe {
        let l = GetEnvironmentVariableA(
            name.as_ptr(),
            buf.as_mut_ptr(),
            0x1000);
        if l == 0 {
            println!("GetEnvironmentVariableA failed");
            return;
        }
        buf.set_len(l as usize);
        let value = AString::new_unchecked(buf);
        println!("value: {}", value.to_string_lossy());
    }
}

fn get_environment_variable_w() {
    let name = WString::from_str("PATH").unwrap();
    let mut buf = Vec::with_capacity(0x1000);
    unsafe {
        let l = GetEnvironmentVariableW(
            name.as_ptr(),
            buf.as_mut_ptr(),
            0x1000);
        if l == 0 {
            println!("GetEnvironmentVariableW failed");
            return;
        }
        buf.set_len(l as usize);
        let value = WString::new_unchecked(buf);
        println!("value: {}", value.to_string_lossy());
    }
}

fn main() {
    println!("*****get_environment_variable_a*****");
    get_environment_variable_a();
    println!("*****get_environment_variable_w*****");
    get_environment_variable_w();
}

License

This software is released under the MIT or Apache-2.0 License, see LICENSE-MIT or LICENSE-APACHE.