WindowsConcatString

// api-ms-win-core-winrt-string-l1-1-0.dll
#include <windows.h>

HRESULT WindowsConcatString(
    HSTRING string1,   // optional
    HSTRING string2,   // optional
    HSTRING* newString
);

<DllImport("api-ms-win-core-winrt-string-l1-1-0.dll", ExactSpelling:=True)>
Public Shared Function WindowsConcatString(
    string1 As IntPtr,   ' HSTRING optional
    string2 As IntPtr,   ' HSTRING optional
    newString As IntPtr   ' HSTRING* out
) As Integer
End Function

' string1 : HSTRING optional
' string2 : HSTRING optional
' newString : HSTRING* out
Declare PtrSafe Function WindowsConcatString Lib "api-ms-win-core-winrt-string-l1-1-0" ( _
    ByVal string1 As LongPtr, _
    ByVal string2 As LongPtr, _
    ByVal newString 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

WindowsConcatString = ctypes.windll.LoadLibrary("api-ms-win-core-winrt-string-l1-1-0.dll").WindowsConcatString
WindowsConcatString.restype = ctypes.c_int
WindowsConcatString.argtypes = [
    wintypes.HANDLE,  # string1 : HSTRING optional
    wintypes.HANDLE,  # string2 : HSTRING optional
    ctypes.c_void_p,  # newString : HSTRING* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-winrt-string-l1-1-0.dll')
WindowsConcatString = Fiddle::Function.new(
  lib['WindowsConcatString'],
  [
    Fiddle::TYPE_VOIDP,  # string1 : HSTRING optional
    Fiddle::TYPE_VOIDP,  # string2 : HSTRING optional
    Fiddle::TYPE_VOIDP,  # newString : HSTRING* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "api-ms-win-core-winrt-string-l1-1-0")]
extern "system" {
    fn WindowsConcatString(
        string1: *mut core::ffi::c_void,  // HSTRING optional
        string2: *mut core::ffi::c_void,  // HSTRING optional
        newString: *mut *mut core::ffi::c_void  // HSTRING* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("api-ms-win-core-winrt-string-l1-1-0.dll")]
public static extern int WindowsConcatString(IntPtr string1, IntPtr string2, IntPtr newString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-winrt-string-l1-1-0_WindowsConcatString' -Namespace Win32 -PassThru
# $api::WindowsConcatString(string1, string2, newString)

#uselib "api-ms-win-core-winrt-string-l1-1-0.dll"
#func global WindowsConcatString "WindowsConcatString" sptr, sptr, sptr
; WindowsConcatString string1, string2, newString   ; 戻り値は stat
; string1 : HSTRING optional -> "sptr"
; string2 : HSTRING optional -> "sptr"
; newString : HSTRING* 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 "api-ms-win-core-winrt-string-l1-1-0.dll"
#cfunc global WindowsConcatString "WindowsConcatString" sptr, sptr, sptr
; res = WindowsConcatString(string1, string2, newString)
; string1 : HSTRING optional -> "sptr"
; string2 : HSTRING optional -> "sptr"
; newString : HSTRING* out -> "sptr"

; HRESULT WindowsConcatString(HSTRING string1, HSTRING string2, HSTRING* newString)
#uselib "api-ms-win-core-winrt-string-l1-1-0.dll"
#cfunc global WindowsConcatString "WindowsConcatString" intptr, intptr, intptr
; res = WindowsConcatString(string1, string2, newString)
; string1 : HSTRING optional -> "intptr"
; string2 : HSTRING optional -> "intptr"
; newString : HSTRING* out -> "intptr"

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

var (
	api_ms_win_core_winrt_string_l1_1_0 = windows.NewLazySystemDLL("api-ms-win-core-winrt-string-l1-1-0.dll")
	procWindowsConcatString = api_ms_win_core_winrt_string_l1_1_0.NewProc("WindowsConcatString")
)

// string1 (HSTRING optional), string2 (HSTRING optional), newString (HSTRING* out)
r1, _, err := procWindowsConcatString.Call(
	uintptr(string1),
	uintptr(string2),
	uintptr(newString),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function WindowsConcatString(
  string1: THandle;   // HSTRING optional
  string2: THandle;   // HSTRING optional
  newString: Pointer   // HSTRING* out
): Integer; stdcall;
  external 'api-ms-win-core-winrt-string-l1-1-0.dll' name 'WindowsConcatString';

result := DllCall("api-ms-win-core-winrt-string-l1-1-0\WindowsConcatString"
    , "Ptr", string1   ; HSTRING optional
    , "Ptr", string2   ; HSTRING optional
    , "Ptr", newString   ; HSTRING* out
    , "Int")   ; return: HRESULT

●WindowsConcatString(string1, string2, newString) = DLL("api-ms-win-core-winrt-string-l1-1-0.dll", "int WindowsConcatString(void*, void*, void*)")
# 呼び出し: WindowsConcatString(string1, string2, newString)
# string1 : HSTRING optional -> "void*"
# string2 : HSTRING optional -> "void*"
# newString : HSTRING* 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)。