26 lines
879 B
Rust
26 lines
879 B
Rust
// Copyright 2021, Igor Shaula
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// Licensed under the MIT License <LICENSE or
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// http://opensource.org/licenses/MIT>. This file
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// may not be copied, modified, or distributed
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// except according to those terms.
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extern crate winreg;
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use std::io;
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use winreg::enums::*;
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use winreg::RegKey;
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fn main() -> io::Result<()> {
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{
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// put this in a block so app_key_1 gets out of scope and doesn't prevent us
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// from loading the key again later
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let app_key_1 = RegKey::load_app_key("myhive.dat", true)?;
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app_key_1.set_value("answer", &42u32)?;
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}
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let answer: u32 = {
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// NOTE: on Windows 7 this fails with ERROR_ALREADY_EXISTS
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let app_key_2 =
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RegKey::load_app_key_with_flags("myhive.dat", KEY_READ, REG_PROCESS_APPKEY)?;
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app_key_2.get_value("answer")?
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};
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println!("The Answer is {}", answer);
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Ok(())
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}
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