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//! This module provides utilities to query information about the version of
//! Microsoft Windows.
use windows_kernel_sys::{base::RTL_OSVERSIONINFOW, ntoskrnl::RtlGetVersion};
use crate::error::{Error, IntoResult};
/// Represents version information for Microsoft Windows.
pub struct VersionInfo {
version_info: RTL_OSVERSIONINFOW,
}
impl VersionInfo {
/// Uses [`RtlGetVersion`] to query the version info for Microsoft Windows.
pub fn query() -> Result<Self, Error> {
let mut version_info: RTL_OSVERSIONINFOW = unsafe { core::mem::zeroed() };
version_info.dwOSVersionInfoSize = core::mem::size_of::<RTL_OSVERSIONINFOW>() as u32;
unsafe { RtlGetVersion(&mut version_info) }.into_result()?;
Ok(Self {
version_info,
})
}
/// Retrieves the major version of Microsoft Windows.
pub fn major(&self) -> u32 { self.version_info.dwMajorVersion }
/// Retrieves the minor version of Microsoft Windows.
pub fn minor(&self) -> u32 { self.version_info.dwMinorVersion }
/// Retrieves the build number of Microsoft Windows.
pub fn build_number(&self) -> u32 { self.version_info.dwBuildNumber }
}
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