GetAvailableCoreWebView2BrowserVersionString

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

HRESULT GetAvailableCoreWebView2BrowserVersionString(
    LPCWSTR browserExecutableFolder,
    LPWSTR* versionInfo
);

<DllImport("WebView2Loader.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetAvailableCoreWebView2BrowserVersionString(
    <MarshalAs(UnmanagedType.LPWStr)> browserExecutableFolder As String,   ' LPCWSTR
    versionInfo As IntPtr   ' LPWSTR*
) As Integer
End Function

' browserExecutableFolder : LPCWSTR
' versionInfo : LPWSTR*
Declare PtrSafe Function GetAvailableCoreWebView2BrowserVersionString Lib "webview2loader" ( _
    ByVal browserExecutableFolder As LongPtr, _
    ByVal versionInfo 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

GetAvailableCoreWebView2BrowserVersionString = ctypes.windll.webview2loader.GetAvailableCoreWebView2BrowserVersionString
GetAvailableCoreWebView2BrowserVersionString.restype = ctypes.c_int
GetAvailableCoreWebView2BrowserVersionString.argtypes = [
    wintypes.LPCWSTR,  # browserExecutableFolder : LPCWSTR
    ctypes.c_void_p,  # versionInfo : LPWSTR*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WebView2Loader.dll')
GetAvailableCoreWebView2BrowserVersionString = Fiddle::Function.new(
  lib['GetAvailableCoreWebView2BrowserVersionString'],
  [
    Fiddle::TYPE_VOIDP,  # browserExecutableFolder : LPCWSTR
    Fiddle::TYPE_VOIDP,  # versionInfo : LPWSTR*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "webview2loader")]
extern "system" {
    fn GetAvailableCoreWebView2BrowserVersionString(
        browserExecutableFolder: *const u16,  // LPCWSTR
        versionInfo: *mut *mut u16  // LPWSTR*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WebView2Loader.dll", CharSet = CharSet.Unicode)]
public static extern int GetAvailableCoreWebView2BrowserVersionString([MarshalAs(UnmanagedType.LPWStr)] string browserExecutableFolder, IntPtr versionInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WebView2Loader_GetAvailableCoreWebView2BrowserVersionString' -Namespace Win32 -PassThru
# $api::GetAvailableCoreWebView2BrowserVersionString(browserExecutableFolder, versionInfo)

#uselib "WebView2Loader.dll"
#func global GetAvailableCoreWebView2BrowserVersionString "GetAvailableCoreWebView2BrowserVersionString" wptr, wptr
; GetAvailableCoreWebView2BrowserVersionString browserExecutableFolder, varptr(versionInfo)   ; 戻り値は stat
; browserExecutableFolder : LPCWSTR -> "wptr"
; versionInfo : LPWSTR* -> "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 GetAvailableCoreWebView2BrowserVersionString "GetAvailableCoreWebView2BrowserVersionString" wstr, var
; res = GetAvailableCoreWebView2BrowserVersionString(browserExecutableFolder, versionInfo)
; browserExecutableFolder : LPCWSTR -> "wstr"
; versionInfo : LPWSTR* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT GetAvailableCoreWebView2BrowserVersionString(LPCWSTR browserExecutableFolder, LPWSTR* versionInfo)
#uselib "WebView2Loader.dll"
#cfunc global GetAvailableCoreWebView2BrowserVersionString "GetAvailableCoreWebView2BrowserVersionString" wstr, var
; res = GetAvailableCoreWebView2BrowserVersionString(browserExecutableFolder, versionInfo)
; browserExecutableFolder : LPCWSTR -> "wstr"
; versionInfo : LPWSTR* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	webview2loader = windows.NewLazySystemDLL("WebView2Loader.dll")
	procGetAvailableCoreWebView2BrowserVersionString = webview2loader.NewProc("GetAvailableCoreWebView2BrowserVersionString")
)

// browserExecutableFolder (LPCWSTR), versionInfo (LPWSTR*)
r1, _, err := procGetAvailableCoreWebView2BrowserVersionString.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(browserExecutableFolder))),
	uintptr(versionInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetAvailableCoreWebView2BrowserVersionString(
  browserExecutableFolder: PWideChar;   // LPCWSTR
  versionInfo: PPWideChar   // LPWSTR*
): Integer; stdcall;
  external 'WebView2Loader.dll' name 'GetAvailableCoreWebView2BrowserVersionString';

result := DllCall("WebView2Loader\GetAvailableCoreWebView2BrowserVersionString"
    , "WStr", browserExecutableFolder   ; LPCWSTR
    , "Ptr", versionInfo   ; LPWSTR*
    , "Int")   ; return: HRESULT

●GetAvailableCoreWebView2BrowserVersionString(browserExecutableFolder, versionInfo) = DLL("WebView2Loader.dll", "int GetAvailableCoreWebView2BrowserVersionString(char*, void*)")
# 呼び出し: GetAvailableCoreWebView2BrowserVersionString(browserExecutableFolder, versionInfo)
# browserExecutableFolder : LPCWSTR -> "char*"
# versionInfo : LPWSTR* -> "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。