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use crate::OpenError;
use std::ffi::OsStr;
use std::os::windows::ffi::OsStrExt;
use std::{io, ptr};
use winapi::ctypes::c_int;
use winapi::um::shellapi::ShellExecuteW;
pub(crate) fn open(path: &OsStr) -> Result<(), OpenError> {
const SW_SHOW: c_int = 5;
let path = convert_path(path).map_err(OpenError::Io)?;
let operation: Vec<u16> = OsStr::new("open\0").encode_wide().collect();
let result = unsafe {
ShellExecuteW(
ptr::null_mut(),
operation.as_ptr(),
path.as_ptr(),
ptr::null(),
ptr::null(),
SW_SHOW,
)
};
if result as c_int > 32 {
Ok(())
} else {
Err(OpenError::Io(io::Error::last_os_error()))
}
}
fn convert_path(path: &OsStr) -> io::Result<Vec<u16>> {
let mut maybe_result: Vec<u16> = path.encode_wide().collect();
if maybe_result.iter().any(|&u| u == 0) {
return Err(io::Error::new(
io::ErrorKind::InvalidInput,
"path contains NUL byte(s)",
));
}
maybe_result.push(0);
Ok(maybe_result)
}
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