Convert rust strings to win32 PWSTR type

wide_string.rs

use windows::Win32::Foundation::PWSTR;

#[derive(Default)]
pub struct WideString(pub Vec<u16>);

pub trait ToWide {
	fn to_wide(&self) -> WideString;
}

impl ToWide for &str {
	fn to_wide(&self) -> WideString {
		let mut result: Vec<u16> = self.encode_utf16().collect();
		result.push(0);
		WideString(result)
	}
}

impl ToWide for String {
	fn to_wide(&self) -> WideString {
		let mut result: Vec<u16> = self.encode_utf16().collect();
		result.push(0);
		WideString(result)
	}
}

impl WideString {
	pub fn as_pwstr(&self) -> PWSTR {
		PWSTR(self.0.as_ptr() as *mut _)
	}
}