Hi there,
I’m trying to do some native windows rust programming. I’m using native-windows-gui and native-windows-derive to do it, but if I try to mix that with tokio, I get the following:
No entry point found error for GetWindowSubclass. On console, I get:
error: process didn't exit successfully: `C:\source\myprojectanem\target\debug\myprojectname.exe` (exit code: 0xc0000139, STATUS_ENTRYPOINT_NOT_FOUND)
If I change
#[tokio::main]
async fn main() {
to:
fn main() {
The problem goes away, but obviously I can’t use tokio then.
Any clue what the problem is and how to fix it?
You can manually convert a
tokio::mainto a regularmainby constructing a tokio runtime and telling it to block on a top-level future (e.g. an async block).https://tokio.rs/tokio/tutorial/hello-tokio
That will at least help you break down the problem to locate the issue.
I don’t know anything about Windows though. Maybe there’s some per-thread setup that needs to be done in tokio’s thread pool?
Same erro by using this approach.
Tokio works fine, by itself. windows-native-gui works fine, by itself. It is the combination that causes this issue.