CreateCoreWebView2Environment

// WebView2Loader.dll  (Unicode / -W)
#include <windows.h>

HRESULT CreateCoreWebView2Environment(
    ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* environmentCreatedHandler
);

<DllImport("WebView2Loader.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CreateCoreWebView2Environment(
    environmentCreatedHandler As IntPtr   ' ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
) As Integer
End Function

' environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
Declare PtrSafe Function CreateCoreWebView2Environment Lib "webview2loader" ( _
    ByVal environmentCreatedHandler As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CreateCoreWebView2Environment = ctypes.windll.webview2loader.CreateCoreWebView2Environment
CreateCoreWebView2Environment.restype = ctypes.c_int
CreateCoreWebView2Environment.argtypes = [
    ctypes.c_void_p,  # environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WebView2Loader.dll')
CreateCoreWebView2Environment = Fiddle::Function.new(
  lib['CreateCoreWebView2Environment'],
  [
    Fiddle::TYPE_VOIDP,  # environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "webview2loader")]
extern "system" {
    fn CreateCoreWebView2Environment(
        environmentCreatedHandler: *mut core::ffi::c_void  // ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WebView2Loader.dll", CharSet = CharSet.Unicode)]
public static extern int CreateCoreWebView2Environment(IntPtr environmentCreatedHandler);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WebView2Loader_CreateCoreWebView2Environment' -Namespace Win32 -PassThru
# $api::CreateCoreWebView2Environment(environmentCreatedHandler)

#uselib "WebView2Loader.dll"
#func global CreateCoreWebView2Environment "CreateCoreWebView2Environment" wptr
; CreateCoreWebView2Environment environmentCreatedHandler   ; 戻り値は stat
; environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "WebView2Loader.dll"
#cfunc global CreateCoreWebView2Environment "CreateCoreWebView2Environment" sptr
; res = CreateCoreWebView2Environment(environmentCreatedHandler)
; environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* -> "sptr"

; HRESULT CreateCoreWebView2Environment(ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* environmentCreatedHandler)
#uselib "WebView2Loader.dll"
#cfunc global CreateCoreWebView2Environment "CreateCoreWebView2Environment" intptr
; res = CreateCoreWebView2Environment(environmentCreatedHandler)
; environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	webview2loader = windows.NewLazySystemDLL("WebView2Loader.dll")
	procCreateCoreWebView2Environment = webview2loader.NewProc("CreateCoreWebView2Environment")
)

// environmentCreatedHandler (ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*)
r1, _, err := procCreateCoreWebView2Environment.Call(
	uintptr(environmentCreatedHandler),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CreateCoreWebView2Environment(
  environmentCreatedHandler: Pointer   // ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
): Integer; stdcall;
  external 'WebView2Loader.dll' name 'CreateCoreWebView2Environment';

result := DllCall("WebView2Loader\CreateCoreWebView2Environment"
    , "Ptr", environmentCreatedHandler   ; ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler*
    , "Int")   ; return: HRESULT

●CreateCoreWebView2Environment(environmentCreatedHandler) = DLL("WebView2Loader.dll", "int CreateCoreWebView2Environment(void*)")
# 呼び出し: CreateCoreWebView2Environment(environmentCreatedHandler)
# environmentCreatedHandler : ICoreWebView2CreateCoreWebView2EnvironmentCompletedHandler* -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。