How to convert this sh*tcode to C?

[bitcoin]

Can anybody tell me, what this code means and how to convert it to pure C? Is this possible?

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// <-- WebView2 sample code starts here -->
// Step 3 - Create a single WebView within the parent window
// Locate the browser and set up the environment for WebView
CreateCoreWebView2EnvironmentWithOptions(nullptr, nullptr, nullptr,
Callback<ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler>(
[hWnd](HRESULT result, ICoreWebView2Environment* env) -> HRESULT {

// Create a CoreWebView2Controller and get the associated CoreWebView2 whose parent is the main window hWnd
env->CreateCoreWebView2Controller(hWnd, Callback<ICoreWebView2CreateCoreWebView2ControllerCompletedHandler>(
[hWnd](HRESULT result, ICoreWebView2Controller* controller) -> HRESULT {
if (controller != nullptr) {
webviewController = controller;
webviewController->get_CoreWebView2(&webviewWindow);
}


[TimoVJL]

Not easily, something wrong with that code.
Reformat it better way.

[bitcoin]

Hello, Timo!
Can you see whole code here ? https://github.com/arsher/WebView2GettingStarted
I don't understand , what means Callback<..> , -> and other

[TimoVJL]

These give some hints:

https://stackoverflow.com/questions/66820213/basic-win32-webview2-example-not-working-in-pure-c

https://github.com/MicrosoftEdge/WebView2Feedback/issues/1124

https://stackoverflow.com/questions/70768030/usage-icorewebview2environmentoptions-in-cbuilder-11

and

https://learn.microsoft.com/en-us/microsoft-edge/webview2/concepts/environment-controller-core?tabs=win32cpp

https://www.nuget.org/packages/Microsoft.Web.WebView2

[bitcoin]

Thank you TimoVJL!
Why don't they (micro$oft) want , that we to use the C language? First in GDI+, where you can't call them with C. Yes, a visual studio (ms sdk) does not allow use flat Api! You can try it. Only PellesC includes work!

[bitcoin]

TimoVJL, sorry, but I can't compile your code, in PellesC .

Error in string

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completedHandler->lpVtbl->AddRef = HandlerAddRef;

error #2168: Operands of '=' have incompatible types 'unsigned long int __stdcall (*const)(ICoreWebView2CreateCoreWebView2ControllerCompletedHandler (aka struct ICoreWebView2CreateCoreWebView2ControllerCompletedHandler) *)' and 'unsigned long int __stdcall (*)(LPUNKNOWN (aka struct IUnknown *))'.

error #2033: Assignment to const location.

[Vortex]

Hi bitcoin,

Thank you TimoVJL!
Why don't they (micro$oft) want , that we to use the C language? First in GDI+, where you can't call them with C. Yes, a visual studio (ms sdk) does not allow use flat Api! You can try it. Only PellesC includes work!

Here are some different opinions :

https://www.quora.com/Why-does-Microsoft-use-C-as-its-main-programming-language

https://content.techgig.com/technology-guide/microsoft-azure-cto-goes-against-c-and-c-heres-why/articleshow/94473671.cms

https://analyticsindiamag.com/why-microsoft-is-dumping-c-c-for-this-new-programming-language/

[bitcoin]

Hello, Vortex
Rust is more "better"...In future we must convert sources from Rust? No..

[TimoVJL]

TimoVJL, sorry, but I can't compile your code, in PellesC .

Error in string

Code Select Expand

completedHandler->lpVtbl->AddRef = HandlerAddRef;

error #2168: Operands of '=' have incompatible types 'unsigned long int __stdcall (*const)(ICoreWebView2CreateCoreWebView2ControllerCompletedHandler (aka struct ICoreWebView2CreateCoreWebView2ControllerCompletedHandler) *)' and 'unsigned long int __stdcall (*)(LPUNKNOWN (aka struct IUnknown *))'.

error #2033: Assignment to const location.

I haven't fixed it yet, perhaps frankie can do it. MSC is more flexible with code, so those examples needs fixing.

[bitcoin]

TimoVJL, but you can compile it in MSVC? I can't . If you can - what version of studio you use?

[Vortex]

Hi bitcoin,

Rust is more "better"...In future we must convert sources from Rust? No..

I agree with you. Rust is just another propaganda.

[TimoVJL]

TimoVJL, but you can compile it in MSVC? I can't . If you can - what version of studio you use?

i couldn't compile it with cl neither. So a bad example from net 

WebView2 needs this too: WebView2Loader.dll

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LIBRARY WebView2Loader.dll
EXPORTS
_CreateCoreWebView2EnvironmentWithOptions@16 = CreateCoreWebView2EnvironmentWithOptions


dll, include, libs :
https://www.nuget.org/packages/Microsoft.Web.WebView2

[bitcoin]

TimoVJL, thank you! COM and new C++ is terrible!

[frankie]

This is a quick and dirty sample, but working at least  .
Derived from this link .

[TimoVJL]

Thanks frankie.
Don't work in Windows 7 

That was an important line:

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webviewController->lpVtbl->AddRef(webviewController); // <-- here, increase the reference count for the webviewController

Now i can remove useless code.

WebView2 runtime :
https://developer.microsoft.com/en-us/microsoft-edge/webview2/#download-section

In Windows 7

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GetProcAddress(0x75090000 [KERNEL32.DLL], "SetThreadDescription") called from "EMBEDDEDBROWSERWEBVIEW.DLL" at address 0x66EC1D51 and returned NULL. Error: The specified procedure could not be found (127).