GlobalAddAtomW

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

WORD GlobalAddAtomW(
    LPCWSTR lpString   // optional
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GlobalAddAtomW(
    <MarshalAs(UnmanagedType.LPWStr)> lpString As String   ' LPCWSTR optional
) As UShort
End Function

' lpString : LPCWSTR optional
Declare PtrSafe Function GlobalAddAtomW Lib "kernel32" ( _
    ByVal lpString As LongPtr) As Integer
' 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

GlobalAddAtomW = ctypes.windll.kernel32.GlobalAddAtomW
GlobalAddAtomW.restype = ctypes.c_ushort
GlobalAddAtomW.argtypes = [
    wintypes.LPCWSTR,  # lpString : LPCWSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GlobalAddAtomW = Fiddle::Function.new(
  lib['GlobalAddAtomW'],
  [
    Fiddle::TYPE_VOIDP,  # lpString : LPCWSTR optional
  ],
  -Fiddle::TYPE_SHORT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn GlobalAddAtomW(
        lpString: *const u16  // LPCWSTR optional
    ) -> u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern ushort GlobalAddAtomW([MarshalAs(UnmanagedType.LPWStr)] string lpString);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GlobalAddAtomW' -Namespace Win32 -PassThru
# $api::GlobalAddAtomW(lpString)

#uselib "KERNEL32.dll"
#func global GlobalAddAtomW "GlobalAddAtomW" wptr
; GlobalAddAtomW lpString   ; 戻り値は stat
; lpString : LPCWSTR optional -> "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 "KERNEL32.dll"
#cfunc global GlobalAddAtomW "GlobalAddAtomW" wstr
; res = GlobalAddAtomW(lpString)
; lpString : LPCWSTR optional -> "wstr"

; WORD GlobalAddAtomW(LPCWSTR lpString)
#uselib "KERNEL32.dll"
#cfunc global GlobalAddAtomW "GlobalAddAtomW" wstr
; res = GlobalAddAtomW(lpString)
; lpString : LPCWSTR optional -> "wstr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGlobalAddAtomW = kernel32.NewProc("GlobalAddAtomW")
)

// lpString (LPCWSTR optional)
r1, _, err := procGlobalAddAtomW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpString))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WORD

function GlobalAddAtomW(
  lpString: PWideChar   // LPCWSTR optional
): Word; stdcall;
  external 'KERNEL32.dll' name 'GlobalAddAtomW';

result := DllCall("KERNEL32\GlobalAddAtomW"
    , "WStr", lpString   ; LPCWSTR optional
    , "UShort")   ; return: WORD

●GlobalAddAtomW(lpString) = DLL("KERNEL32.dll", "int GlobalAddAtomW(char*)")
# 呼び出し: GlobalAddAtomW(lpString)
# lpString : LPCWSTR optional -> "char*"
# 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。