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// Copyright 2015, Igor Shaula
// Licensed under the MIT License <LICENSE or
// http://opensource.org/licenses/MIT>. This file
// may not be copied, modified, or distributed
// except according to those terms.
extern crate winreg;
use std::path::Path;
use std::io;
use winreg::RegKey;
use winreg::enums::*;
fn main() -> io::Result<()> {
println!("Reading some system info...");
let hklm = RegKey::predef(HKEY_LOCAL_MACHINE);
let cur_ver = hklm.open_subkey("SOFTWARE\\Microsoft\\Windows\\CurrentVersion")?;
let pf: String = cur_ver.get_value("ProgramFilesDir")?;
let dp: String = cur_ver.get_value("DevicePath")?;
println!("ProgramFiles = {}\nDevicePath = {}", pf, dp);
let info = cur_ver.query_info()?;
println!("info = {:?}", info);
println!("And now lets write something...");
let hkcu = RegKey::predef(HKEY_CURRENT_USER);
let path = Path::new("Software").join("WinregRsExample1");
let (key, disp) = hkcu.create_subkey(&path)?;
match disp {
REG_CREATED_NEW_KEY => println!("A new key has been created"),
REG_OPENED_EXISTING_KEY => println!("An existing key has been opened")
}
key.set_value("TestSZ", &"written by Rust")?;
let sz_val: String = key.get_value("TestSZ")?;
key.delete_value("TestSZ")?;
println!("TestSZ = {}", sz_val);
key.set_value("TestDWORD", &1234567890u32)?;
let dword_val: u32 = key.get_value("TestDWORD")?;
println!("TestDWORD = {}", dword_val);
key.set_value("TestQWORD", &1234567891011121314u64)?;
let qword_val: u64 = key.get_value("TestQWORD")?;
println!("TestQWORD = {}", qword_val);
key.create_subkey("sub\\key")?;
hkcu.delete_subkey_all(&path)?;
println!("Trying to open nonexistent key...");
hkcu.open_subkey(&path)
.unwrap_or_else(|e| match e.kind() {
io::ErrorKind::NotFound => panic!("Key doesn't exist"),
io::ErrorKind::PermissionDenied => panic!("Access denied"),
_ => panic!("{:?}", e)
});
Ok(())
}
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