InitVariantFromResource

// PROPSYS.dll
#include <windows.h>

HRESULT InitVariantFromResource(
    HINSTANCE hinst,
    DWORD id,
    VARIANT* pvar
);

<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function InitVariantFromResource(
    hinst As IntPtr,   ' HINSTANCE
    id As UInteger,   ' DWORD
    pvar As IntPtr   ' VARIANT* out
) As Integer
End Function

' hinst : HINSTANCE
' id : DWORD
' pvar : VARIANT* out
Declare PtrSafe Function InitVariantFromResource Lib "propsys" ( _
    ByVal hinst As LongPtr, _
    ByVal id As Long, _
    ByVal pvar As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

InitVariantFromResource = ctypes.windll.propsys.InitVariantFromResource
InitVariantFromResource.restype = ctypes.c_int
InitVariantFromResource.argtypes = [
    wintypes.HANDLE,  # hinst : HINSTANCE
    wintypes.DWORD,  # id : DWORD
    ctypes.c_void_p,  # pvar : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
InitVariantFromResource = Fiddle::Function.new(
  lib['InitVariantFromResource'],
  [
    Fiddle::TYPE_VOIDP,  # hinst : HINSTANCE
    -Fiddle::TYPE_INT,  # id : DWORD
    Fiddle::TYPE_VOIDP,  # pvar : VARIANT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "propsys")]
extern "system" {
    fn InitVariantFromResource(
        hinst: *mut core::ffi::c_void,  // HINSTANCE
        id: u32,  // DWORD
        pvar: *mut VARIANT  // VARIANT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int InitVariantFromResource(IntPtr hinst, uint id, IntPtr pvar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_InitVariantFromResource' -Namespace Win32 -PassThru
# $api::InitVariantFromResource(hinst, id, pvar)

#uselib "PROPSYS.dll"
#func global InitVariantFromResource "InitVariantFromResource" sptr, sptr, sptr
; InitVariantFromResource hinst, id, varptr(pvar)   ; 戻り値は stat
; hinst : HINSTANCE -> "sptr"
; id : DWORD -> "sptr"
; pvar : VARIANT* out -> "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 "PROPSYS.dll"
#cfunc global InitVariantFromResource "InitVariantFromResource" sptr, int, var
; res = InitVariantFromResource(hinst, id, pvar)
; hinst : HINSTANCE -> "sptr"
; id : DWORD -> "int"
; pvar : VARIANT* out -> "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 InitVariantFromResource(HINSTANCE hinst, DWORD id, VARIANT* pvar)
#uselib "PROPSYS.dll"
#cfunc global InitVariantFromResource "InitVariantFromResource" intptr, int, var
; res = InitVariantFromResource(hinst, id, pvar)
; hinst : HINSTANCE -> "intptr"
; id : DWORD -> "int"
; pvar : VARIANT* out -> "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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procInitVariantFromResource = propsys.NewProc("InitVariantFromResource")
)

// hinst (HINSTANCE), id (DWORD), pvar (VARIANT* out)
r1, _, err := procInitVariantFromResource.Call(
	uintptr(hinst),
	uintptr(id),
	uintptr(pvar),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function InitVariantFromResource(
  hinst: THandle;   // HINSTANCE
  id: DWORD;   // DWORD
  pvar: Pointer   // VARIANT* out
): Integer; stdcall;
  external 'PROPSYS.dll' name 'InitVariantFromResource';

result := DllCall("PROPSYS\InitVariantFromResource"
    , "Ptr", hinst   ; HINSTANCE
    , "UInt", id   ; DWORD
    , "Ptr", pvar   ; VARIANT* out
    , "Int")   ; return: HRESULT

●InitVariantFromResource(hinst, id, pvar) = DLL("PROPSYS.dll", "int InitVariantFromResource(void*, dword, void*)")
# 呼び出し: InitVariantFromResource(hinst, id, pvar)
# hinst : HINSTANCE -> "void*"
# id : DWORD -> "dword"
# pvar : VARIANT* out -> "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)。