1 files changed, 26 insertions, 0 deletions
diff --git a/third_party/rust/winreg/examples/load_app_key.rs b/third_party/rust/winreg/examples/load_app_key.rs
new file mode 100644
index 0000000000..2340c82b59
--- /dev/null
+++ b/third_party/rust/winreg/examples/load_app_key.rs
@@ -0,0 +1,26 @@
+// Copyright 2021, 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::io;
+use winreg::enums::*;
+use winreg::RegKey;
+
+fn main() -> io::Result<()> {
+    {
+        // put this in a block so app_key_1 gets out of scope and doesn't prevent us
+        // from loading the key again later
+        let app_key_1 = RegKey::load_app_key("myhive.dat", true)?;
+        app_key_1.set_value("answer", &42u32)?;
+    }
+    let answer: u32 = {
+        // NOTE: on Windows 7 this fails with ERROR_ALREADY_EXISTS
+        let app_key_2 =
+            RegKey::load_app_key_with_flags("myhive.dat", KEY_READ, REG_PROCESS_APPKEY)?;
+        app_key_2.get_value("answer")?
+    };
+    println!("The Answer is {}", answer);
+    Ok(())
+}