QueryOptionalDelayLoadedAPI

// api-ms-win-core-libraryloader-l2-1-0.dll
#include <windows.h>

BOOL QueryOptionalDelayLoadedAPI(
    HMODULE hParentModule,
    LPCSTR lpDllName,
    LPCSTR lpProcName,
    DWORD Reserved   // optional
);

<DllImport("api-ms-win-core-libraryloader-l2-1-0.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function QueryOptionalDelayLoadedAPI(
    hParentModule As IntPtr,   ' HMODULE
    <MarshalAs(UnmanagedType.LPStr)> lpDllName As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> lpProcName As String,   ' LPCSTR
    Reserved As UInteger   ' DWORD optional
) As Boolean
End Function

' hParentModule : HMODULE
' lpDllName : LPCSTR
' lpProcName : LPCSTR
' Reserved : DWORD optional
Declare PtrSafe Function QueryOptionalDelayLoadedAPI Lib "api-ms-win-core-libraryloader-l2-1-0" ( _
    ByVal hParentModule As LongPtr, _
    ByVal lpDllName As String, _
    ByVal lpProcName As String, _
    ByVal Reserved As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

QueryOptionalDelayLoadedAPI = ctypes.windll.LoadLibrary("api-ms-win-core-libraryloader-l2-1-0.dll").QueryOptionalDelayLoadedAPI
QueryOptionalDelayLoadedAPI.restype = wintypes.BOOL
QueryOptionalDelayLoadedAPI.argtypes = [
    wintypes.HANDLE,  # hParentModule : HMODULE
    wintypes.LPCSTR,  # lpDllName : LPCSTR
    wintypes.LPCSTR,  # lpProcName : LPCSTR
    wintypes.DWORD,  # Reserved : DWORD optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-libraryloader-l2-1-0.dll')
QueryOptionalDelayLoadedAPI = Fiddle::Function.new(
  lib['QueryOptionalDelayLoadedAPI'],
  [
    Fiddle::TYPE_VOIDP,  # hParentModule : HMODULE
    Fiddle::TYPE_VOIDP,  # lpDllName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpProcName : LPCSTR
    -Fiddle::TYPE_INT,  # Reserved : DWORD optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "api-ms-win-core-libraryloader-l2-1-0")]
extern "system" {
    fn QueryOptionalDelayLoadedAPI(
        hParentModule: *mut core::ffi::c_void,  // HMODULE
        lpDllName: *const u8,  // LPCSTR
        lpProcName: *const u8,  // LPCSTR
        Reserved: u32  // DWORD optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("api-ms-win-core-libraryloader-l2-1-0.dll", SetLastError = true)]
public static extern bool QueryOptionalDelayLoadedAPI(IntPtr hParentModule, [MarshalAs(UnmanagedType.LPStr)] string lpDllName, [MarshalAs(UnmanagedType.LPStr)] string lpProcName, uint Reserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-libraryloader-l2-1-0_QueryOptionalDelayLoadedAPI' -Namespace Win32 -PassThru
# $api::QueryOptionalDelayLoadedAPI(hParentModule, lpDllName, lpProcName, Reserved)

#uselib "api-ms-win-core-libraryloader-l2-1-0.dll"
#func global QueryOptionalDelayLoadedAPI "QueryOptionalDelayLoadedAPI" sptr, sptr, sptr, sptr
; QueryOptionalDelayLoadedAPI hParentModule, lpDllName, lpProcName, Reserved   ; 戻り値は stat
; hParentModule : HMODULE -> "sptr"
; lpDllName : LPCSTR -> "sptr"
; lpProcName : LPCSTR -> "sptr"
; Reserved : DWORD optional -> "sptr"
; ※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 "api-ms-win-core-libraryloader-l2-1-0.dll"
#cfunc global QueryOptionalDelayLoadedAPI "QueryOptionalDelayLoadedAPI" sptr, str, str, int
; res = QueryOptionalDelayLoadedAPI(hParentModule, lpDllName, lpProcName, Reserved)
; hParentModule : HMODULE -> "sptr"
; lpDllName : LPCSTR -> "str"
; lpProcName : LPCSTR -> "str"
; Reserved : DWORD optional -> "int"

; BOOL QueryOptionalDelayLoadedAPI(HMODULE hParentModule, LPCSTR lpDllName, LPCSTR lpProcName, DWORD Reserved)
#uselib "api-ms-win-core-libraryloader-l2-1-0.dll"
#cfunc global QueryOptionalDelayLoadedAPI "QueryOptionalDelayLoadedAPI" intptr, str, str, int
; res = QueryOptionalDelayLoadedAPI(hParentModule, lpDllName, lpProcName, Reserved)
; hParentModule : HMODULE -> "intptr"
; lpDllName : LPCSTR -> "str"
; lpProcName : LPCSTR -> "str"
; Reserved : DWORD optional -> "int"

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

var (
	api_ms_win_core_libraryloader_l2_1_0 = windows.NewLazySystemDLL("api-ms-win-core-libraryloader-l2-1-0.dll")
	procQueryOptionalDelayLoadedAPI = api_ms_win_core_libraryloader_l2_1_0.NewProc("QueryOptionalDelayLoadedAPI")
)

// hParentModule (HMODULE), lpDllName (LPCSTR), lpProcName (LPCSTR), Reserved (DWORD optional)
r1, _, err := procQueryOptionalDelayLoadedAPI.Call(
	uintptr(hParentModule),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpDllName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpProcName))),
	uintptr(Reserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function QueryOptionalDelayLoadedAPI(
  hParentModule: THandle;   // HMODULE
  lpDllName: PAnsiChar;   // LPCSTR
  lpProcName: PAnsiChar;   // LPCSTR
  Reserved: DWORD   // DWORD optional
): BOOL; stdcall;
  external 'api-ms-win-core-libraryloader-l2-1-0.dll' name 'QueryOptionalDelayLoadedAPI';

result := DllCall("api-ms-win-core-libraryloader-l2-1-0\QueryOptionalDelayLoadedAPI"
    , "Ptr", hParentModule   ; HMODULE
    , "AStr", lpDllName   ; LPCSTR
    , "AStr", lpProcName   ; LPCSTR
    , "UInt", Reserved   ; DWORD optional
    , "Int")   ; return: BOOL

●QueryOptionalDelayLoadedAPI(hParentModule, lpDllName, lpProcName, Reserved) = DLL("api-ms-win-core-libraryloader-l2-1-0.dll", "bool QueryOptionalDelayLoadedAPI(void*, char*, char*, dword)")
# 呼び出し: QueryOptionalDelayLoadedAPI(hParentModule, lpDllName, lpProcName, Reserved)
# hParentModule : HMODULE -> "void*"
# lpDllName : LPCSTR -> "char*"
# lpProcName : LPCSTR -> "char*"
# Reserved : DWORD optional -> "dword"
# 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)。