YES!!! BOOOOOOOOOOOOIIIIIIIIIIIIIII

Cargo.toml

@@ -28,6 +28,7 @@ winapi = { version = "0.3", features = ["combaseapi", "libloaderapi", "minwindef
 windows = "0.2.1"
 
 [target.'cfg(target_os = "windows")'.build-dependencies]
+cc = "1"
 windows = "0.2.1"
 
 [target.'cfg(target_os = "macos")'.dependencies]

build.rs

@@ -2,10 +2,20 @@ fn main() {
     let target = std::env::var("TARGET").unwrap();
     if target.contains("-windows") {
         windows::build!(
-            windows::foundation::*
-            windows::web::ui::*
-            windows::web::ui::interop::*
+            windows::foundation::collections::*
+            windows::foundation::{AsyncStatus, Rect, Uri}
+            windows::web::ui::interop::{WebViewControl, WebViewControlProcess, }
         );
+
+        let mut build = cc::Build::new();
+        build
+            .include("src/collections.h")
+            .file("src/collections.cpp")
+            .flag_if_supported("/std:c++17");
+
+        println!("cargo:rerun-if-changed=src/collections.h");
+        println!("cargo:rerun-if-changed=src/collections.cpp");
+        build.compile("collections");
     } else if target.contains("-apple") {
         println!("cargo:rustc-link-lib=framework=WebKit");
     }

src/collections.cpp

@@ -0,0 +1,10 @@
+#include "collections.h"
+
+#define WIN32_LEAN_AND_MEAN
+#include <winrt/Windows.Foundation.Collections.h>
+using namespace winrt;
+void* ivector(const char* js) {
+    auto x = winrt::single_threaded_vector<hstring>({ winrt::to_hstring(js) });
+
+    return reinterpret_cast<void*>(winrt::detach_abi(x));
+}

src/collections.h

@@ -0,0 +1,12 @@
+#ifndef COLLECTIONS_H
+#define COLLECTIONS_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void* ivector(const char* js);
+
+#ifdef __cplusplus
+}
+#endif
+#endif //COLLECTIONS_H

src/lib.rs

@@ -9,6 +9,13 @@ mod sys;
 pub use crate::sys::*;
 
 use std::fmt;
+use std::ffi::c_void;
+use std::os::raw::c_char;
+
+#[cfg(target_os = "windows")]
+extern {
+    fn ivector(js: *const c_char) -> *mut c_void;
+}
 
 #[derive(Debug)]
 pub enum Error {

src/sys/win.rs

@@ -35,11 +35,10 @@ mod bindings {
     ::windows::include_bindings!();
 }
 
-use bindings::windows::foundation::*;
 use bindings::windows::foundation::collections::*;
+use bindings::windows::foundation::*;
 use bindings::windows::web::ui::interop::*;
-use bindings::windows::web::ui::*;
-use windows::HString;
+use windows::{HString, Abi};
 
 static CALLBACKS: Lazy<Mutex<HashMap<String, Box<dyn FnMut(i8, Vec<String>) -> i32 + Sync + Send>>>> = Lazy::new(|| {
     let m = HashMap::new();
@@ -123,6 +122,11 @@ impl InnerWindow {
         ))?;
         */
         // TODO NavigateToString/url as parameter
+        let h = CString::new("window.x = 42").unwrap();
+        let x = unsafe { crate::ivector(h.as_ptr()) };
+        let x: IVector<HString> = unsafe { IVector::from_abi(x).unwrap() };
+        dbg!(&x.get_at(0));
+        webview.invoke_script_async("eval", x)?;
         webview.navigate(Uri::create_uri("https://google.com")?)?;
 
         let w = InnerWindow {