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Peter Atashian
@retep998
types and constants can be provided just fine though
聪
@woodgear
why? what the difference?
聪
@woodgear
what the problem is? maybe be we could fix that
Peter Atashian
@retep998
@woodgear I'd need Rust to officially bless certain targets for windows kernel mode, so I can detect them and link to different things for them.
聪
@woodgear
en,maybe a branch like feature/km? we could not do nothing but just wait for rust officially .
i will open a pr to push rust add windows kernel mode target (by the way where should i go? rust/rustup?)
聪
@woodgear
for now, we could temporary assume that the target name is i686-kernel-windows-msvc for x86 and x86_64-kernel-windows-msvc for x64
there are some people who want to km binding of winapi like retep998/winapi-rs#605
Peter Atashian
@retep998
I'll try to work on some stuff in a branch
聪
@woodgear
cool,please make that branch be public, we are gratefully to contribute our code.
here https://github.com/retep998/winapi-rs/compare/0.3...Trantect:feature/km
here https://github.com/Trantect/win_driver_example
in fact here https://github.com/Trantect/win-kmd-alloc/blob/master/build.rs is how we link lib
hopefully be helpful
聪
@woodgear
i will open a pr(could not be merge) to show what we have done.
Peter Atashian
@retep998
locating the km libraries should be the job of rust, not winapi
or rather, the cc crate
聪
@woodgear
locating the km libraries? you mean find the path of those lib?
Peter Atashian
@retep998
most of the stuff in that build.rs you linked is supposed to be handled automatically by rust through the cc crate
Peter Atashian
@retep998
anyway, I kicked things off by filing an issue in Rust rust-lang/rust#59994
聪
@woodgear
seems great
FXTi
@FXTi
Hey guys, I'm new to rust on Windows. I wonder how to use NtDeviceIoControlFile in nt.dll in rust way.
I see it in ntdll.def. But seems there's no rust source code about it in winapi-rs crate. And I think it may concerns bindgen.
anyway, is there a way to call that function? It's quite complicated for me...
Peter Atashian
@retep998
@FXTi that function is in the Windows SDK, so it's just a matter of someone submitting a pull request to winapi adding the bindings for it correctly.
FXTi
@FXTi
@retep998 Like this? retep998/winapi-rs#775
FXTi
@FXTi
Sorry to bother you, another solution found.
Ryan Levick
@rylev
Hello! I was wondering if anyone had a good idea of how complete the winapi crate is in terms of API coverage. Just having some conversations at work about the likelihood of running into unimplemented bindings
Peter Atashian
@retep998
rylev: yes
Ryan Levick
@rylev
@retep998 would you be able to give a rough estimate of API coverage (and I do realize how hard that might be...)
Peter Atashian
@retep998
@rylev maybe 20%?
plus or minus 20%
Ryan Levick
@rylev
Meaning 20% is covered right?
Peter Atashian
@retep998
roughly yeah
the windows sdk is huge
Peter Atashian
@retep998
and unfortunately tools like bindgen don't work very well
Brian Merchant
@bzm3r
what's the preferred way to pass a path to a winapi wrapper?
i'm finding that there's no easy way to go from OsStr to a const * _?
Peter Atashian
@retep998
@bzm3r OsStrExt::encode_wide().chain(once(0)).collect() to get you a Vec<u16>. You can then call .as_ptr() on it to get a pointer to pass to winapi.
@bzm3r As for your ID3D10Blob question, you would call the GetBufferPointer and GetBufferSize methods to get the pointer and size, and pass them to std::slice::from_raw_parts to get a &[T].
If the blob is a unicode string you would get a &[u16] and pass it to OsStringExt::from_wide()
Barret Rennie
@brennie
Howdy. Is there an expected release date for the 0.38? I'd like to use the DISK_PERFORMANCE struct that was added recently.
Peter Atashian
@retep998
@brennie I am currently in the process of verifying I did not break backwards compatibility before I publish a new version.
Barret Rennie
@brennie
👍
MarkAnthonyM
@MarkAnthonyM
How exactly do I go about using the struct CHAR_INFO_Char? I'm trying to use it in conjunction with the struct CHAR_INFO but I'm not sure how to go about populating its private field.
MarkAnthonyM
@MarkAnthonyM
actually, scratch that. I think I found an example I can work off of
Peter Atashian
@retep998
@MarkAnthonyM Initialize CHAR_INFO with zeroed() or Default and then use the methods to access the union variant and assign the value you want
it'll be better in winapi 0.4 which will use actual unions
MarkAnthonyM
@MarkAnthonyM
Ah, I was just looking over the function of zeroed() in the rust docs when you sent this message. Many thanks!
Hilmar Gústafsson
@LiHRaM
Can anyone tell me why this code is failing on CoCreateInstance with a class not found error? https://github.com/LiHRaM/egpu-rs/blob/master/src/main.rs