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Update lpfnWndProc to use window_procedure earlier & Remove return to help reproduce printed error #33

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Merged
merged 3 commits into from
Oct 22, 2025
Merged

Update lpfnWndProc to use window_procedure earlier & Remove return to help reproduce printed error #33

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Reproducing the printed messages after this code snippet requires rem…
hugocowan Oct 18, 2025
debfc6b
Update lpfnWndProc to use window_procedure earlier.
hugocowan Oct 18, 2025
4eb3cc8
use code snippet
hugocowan Oct 18, 2025
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10 changes: 9 additions & 1 deletion book_src/opening_a_window/win32.md
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Original file line number Diff line number Diff line change
Expand Up @@ -1406,6 +1406,15 @@ pub unsafe extern "system" fn window_procedure(
}
```

And update our window class to use `window_procedure`:
```rust
fn main() {
// ...
wc.lpfnWndProc = Some(window_procedure);
// ...
}
```

Window looks the same as before,
but if we fiddle with the brush value we can see it'll draw using other colors.
Doesn't seem to fix the mouse though.
Expand Down Expand Up @@ -1458,7 +1467,6 @@ And we check for them in our window procedure:
match Msg {
WM_NCCREATE => {
println!("NC Create");
return 1;
}
WM_CREATE => println!("Create"),
```
Expand Down