HINSTANCE is apparently not in metadata.

[LollipopFt]

   Compiling bindings v0.1.0 (C:\Users\lollipopft\rust\projects\winapi\window\bindings)                         
error: `Windows.Win32.Foundation.HINSTANCE` not found in metadata
 --> bindings\build.rs:4:25
  |
4 |             Foundation::HINSTANCE,
  |                         ^^^^^^^^^

error: aborting due to previous error

error: could not compile `bindings`

it gives me this error when my build.rs is

fn main() {
    windows::build!(
        Windows::Win32::{
            Foundation::HINSTANCE,
            UI::WindowsAndMessaging::{WNDCLASSW, WNDCLASS_STYLES, CS_OWNDC, CS_HREDRAW, CS_VREDRAW, DefWindowProcW}
        }
    );
}

am i doing anything wrong?

[kennykerr]

These types having recently moved around due to changes in the Win32 metadata. As of 0.11.0, it can be found here:

Windows::Win32::Foundation::HINSTANCE

https://microsoft.github.io/windows-docs-rs/doc/bindings/Windows/Win32/Foundation/struct.HINSTANCE.html

Perhaps double check which version of the Windows crate you're using.

[LollipopFt]

hi, may i ask how to check which version i am running if i use windows={git="https://github.com/microsoft/windows-rs.git"}?
thank you!

edit: got HINSTANCE to run, now bindings::Windows::Win32::UI::WindowsAndMessaging::CS_OWNDC is the problem.

C:\Users\lollipopft\rust\projects\winapi\window>cargo run --verbose
       Fresh unicode-xid v0.2.2
       Fresh windows_gen v0.11.0 (https://github.com/microsoft/windows-rs.git#05b8e30c)
       Fresh const-sha1 v0.2.0
       Fresh proc-macro2 v1.0.27
       Fresh quote v1.0.9
       Fresh syn v1.0.73
       Fresh windows_macros v0.11.0 (https://github.com/microsoft/windows-rs.git#05b8e30c)
       Fresh windows v0.11.0 (https://github.com/microsoft/windows-rs.git#05b8e30c)
   Compiling bindings v0.1.0 (C:\Users\lollipopft\rust\projects\winapi\window\bindings)
     Running `rustc --crate-name build_script_build --edition=2018 bindings\build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=ad86fbf71858be3f -C extra-filename=-ad86fbf71858be3f --out-dir C:\Users\lollipopft\rust\projects\winapi\window\target\debug\build\bindings-ad86fbf71858be3f -C incremental=C:\Users\lollipopft\rust\projects\winapi\window\target\debug\incremental -L dependency=C:\Users\lollipopft\rust\projects\winapi\window\target\debug\deps --extern windows=C:\Users\lollipopft\rust\projects\winapi\window\target\debug\deps\libwindows-e9c9cd4eae3589d1.rlib`
error: `Windows.Win32.UI.WindowsAndMessaging.CS_OWNDC` not found in metadata
 --> bindings\build.rs:5:67
  |
5 |             UI::WindowsAndMessaging::{WNDCLASSW, WNDCLASS_STYLES, CS_OWNDC, CS_HREDRAW, CS_VREDRAW, DefWindowProcW}
  |                                                                   ^^^^^^^^

error: aborting due to previous error

error: could not compile `bindings`

[kennykerr]

It depends on what you've asked for in your cargo.toml file. This is documented here:

https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html

If you point to GitHub then you get the latest development version, which isn't necessarily stable. If you ask for the latest version as illustrated here - https://crates.io/crates/windows - then you get the latest stable version, which is currently 0.11.0.

You should just remove CS_OWNDC, CS_HREDRAW, CS_VREDRAW from your build script. They should be included as necessary.

[LollipopFt]

i see, thank you!

[LollipopFt]

well turns out i do need CS_OWNDC, ran with proper crate:

C:\Users\lollipopft\rust\projects\winapi\window>cargo run
   Compiling proc-macro2 v1.0.27
   Compiling unicode-xid v0.2.2
   Compiling syn v1.0.73
   Compiling windows_gen v0.11.0
   Compiling const-sha1 v0.2.0
   Compiling quote v1.0.9
   Compiling windows_macros v0.11.0
   Compiling windows v0.11.0
   Compiling bindings v0.1.0 (C:\Users\lollipopft\rust\projects\winapi\window\bindings)
error: `Windows.Win32.UI.WindowsAndMessaging.CS_OWNDC` not found in metadata
 --> bindings\build.rs:5:67
  |
5 |             UI::WindowsAndMessaging::{WNDCLASSW, WNDCLASS_STYLES, CS_OWNDC, CS_HREDRAW, CS_VREDRAW, DefWindowProcW}
  |                                                                   ^^^^^^^^

error: aborting due to previous error

error: could not compile `bindings`

my cargo.toml:

[dependencies]
windows="0.11.0"

[build-dependencies]
windows="0.11.0"

rip

[tim-weis]

Adding WNDCLASS_STYLES to build.rs should be sufficient to have the code generator generate the constants of that type (such as CS_OWNDC). This was the result of #843.

In other words, you should replace

UI::WindowsAndMessaging::{WNDCLASSW, WNDCLASS_STYLES, CS_OWNDC, CS_HREDRAW, CS_VREDRAW, DefWindowProcW}

with

UI::WindowsAndMessaging::{WNDCLASSW, WNDCLASS_STYLES, DefWindowProcW}

The individual style constants (e.g. CS_OWNDC) are then generated into bindings::Windows::Win32::UI::WindowsAndMessaging, allowing you to import them like this:

use bindings::Windows::Win32::UI::WindowsAndMessaging::CS_OWNDC;

[LollipopFt]

oh it works thanks!