UpdateICMRegKeyW

// GDI32.dll  (Unicode / -W)
#include <windows.h>

BOOL UpdateICMRegKeyW(
    DWORD reserved,   // optional
    LPWSTR lpszCMID,
    LPWSTR lpszFileName,
    ICM_COMMAND command
);

<DllImport("GDI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function UpdateICMRegKeyW(
    reserved As UInteger,   ' DWORD optional
    <MarshalAs(UnmanagedType.LPWStr)> lpszCMID As String,   ' LPWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpszFileName As String,   ' LPWSTR
    command As UInteger   ' ICM_COMMAND
) As Boolean
End Function

' reserved : DWORD optional
' lpszCMID : LPWSTR
' lpszFileName : LPWSTR
' command : ICM_COMMAND
Declare PtrSafe Function UpdateICMRegKeyW Lib "gdi32" ( _
    ByVal reserved As Long, _
    ByVal lpszCMID As LongPtr, _
    ByVal lpszFileName As LongPtr, _
    ByVal command As Long) 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

UpdateICMRegKeyW = ctypes.windll.gdi32.UpdateICMRegKeyW
UpdateICMRegKeyW.restype = wintypes.BOOL
UpdateICMRegKeyW.argtypes = [
    wintypes.DWORD,  # reserved : DWORD optional
    wintypes.LPCWSTR,  # lpszCMID : LPWSTR
    wintypes.LPCWSTR,  # lpszFileName : LPWSTR
    wintypes.DWORD,  # command : ICM_COMMAND
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
UpdateICMRegKeyW = Fiddle::Function.new(
  lib['UpdateICMRegKeyW'],
  [
    -Fiddle::TYPE_INT,  # reserved : DWORD optional
    Fiddle::TYPE_VOIDP,  # lpszCMID : LPWSTR
    Fiddle::TYPE_VOIDP,  # lpszFileName : LPWSTR
    -Fiddle::TYPE_INT,  # command : ICM_COMMAND
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "gdi32")]
extern "system" {
    fn UpdateICMRegKeyW(
        reserved: u32,  // DWORD optional
        lpszCMID: *mut u16,  // LPWSTR
        lpszFileName: *mut u16,  // LPWSTR
        command: u32  // ICM_COMMAND
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll", CharSet = CharSet.Unicode)]
public static extern bool UpdateICMRegKeyW(uint reserved, [MarshalAs(UnmanagedType.LPWStr)] string lpszCMID, [MarshalAs(UnmanagedType.LPWStr)] string lpszFileName, uint command);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_UpdateICMRegKeyW' -Namespace Win32 -PassThru
# $api::UpdateICMRegKeyW(reserved, lpszCMID, lpszFileName, command)

#uselib "GDI32.dll"
#func global UpdateICMRegKeyW "UpdateICMRegKeyW" wptr, wptr, wptr, wptr
; UpdateICMRegKeyW reserved, lpszCMID, lpszFileName, command   ; 戻り値は stat
; reserved : DWORD optional -> "wptr"
; lpszCMID : LPWSTR -> "wptr"
; lpszFileName : LPWSTR -> "wptr"
; command : ICM_COMMAND -> "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 "GDI32.dll"
#cfunc global UpdateICMRegKeyW "UpdateICMRegKeyW" int, wstr, wstr, int
; res = UpdateICMRegKeyW(reserved, lpszCMID, lpszFileName, command)
; reserved : DWORD optional -> "int"
; lpszCMID : LPWSTR -> "wstr"
; lpszFileName : LPWSTR -> "wstr"
; command : ICM_COMMAND -> "int"

; BOOL UpdateICMRegKeyW(DWORD reserved, LPWSTR lpszCMID, LPWSTR lpszFileName, ICM_COMMAND command)
#uselib "GDI32.dll"
#cfunc global UpdateICMRegKeyW "UpdateICMRegKeyW" int, wstr, wstr, int
; res = UpdateICMRegKeyW(reserved, lpszCMID, lpszFileName, command)
; reserved : DWORD optional -> "int"
; lpszCMID : LPWSTR -> "wstr"
; lpszFileName : LPWSTR -> "wstr"
; command : ICM_COMMAND -> "int"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procUpdateICMRegKeyW = gdi32.NewProc("UpdateICMRegKeyW")
)

// reserved (DWORD optional), lpszCMID (LPWSTR), lpszFileName (LPWSTR), command (ICM_COMMAND)
r1, _, err := procUpdateICMRegKeyW.Call(
	uintptr(reserved),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszCMID))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszFileName))),
	uintptr(command),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function UpdateICMRegKeyW(
  reserved: DWORD;   // DWORD optional
  lpszCMID: PWideChar;   // LPWSTR
  lpszFileName: PWideChar;   // LPWSTR
  command: DWORD   // ICM_COMMAND
): BOOL; stdcall;
  external 'GDI32.dll' name 'UpdateICMRegKeyW';

result := DllCall("GDI32\UpdateICMRegKeyW"
    , "UInt", reserved   ; DWORD optional
    , "WStr", lpszCMID   ; LPWSTR
    , "WStr", lpszFileName   ; LPWSTR
    , "UInt", command   ; ICM_COMMAND
    , "Int")   ; return: BOOL

●UpdateICMRegKeyW(reserved, lpszCMID, lpszFileName, command) = DLL("GDI32.dll", "bool UpdateICMRegKeyW(dword, char*, char*, dword)")
# 呼び出し: UpdateICMRegKeyW(reserved, lpszCMID, lpszFileName, command)
# reserved : DWORD optional -> "dword"
# lpszCMID : LPWSTR -> "char*"
# lpszFileName : LPWSTR -> "char*"
# command : ICM_COMMAND -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。