GetLogColorSpaceW

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

BOOL GetLogColorSpaceW(
    HCOLORSPACE hColorSpace,
    LOGCOLORSPACEW* lpBuffer,
    DWORD nSize
);

<DllImport("GDI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetLogColorSpaceW(
    hColorSpace As IntPtr,   ' HCOLORSPACE
    lpBuffer As IntPtr,   ' LOGCOLORSPACEW* out
    nSize As UInteger   ' DWORD
) As Boolean
End Function

' hColorSpace : HCOLORSPACE
' lpBuffer : LOGCOLORSPACEW* out
' nSize : DWORD
Declare PtrSafe Function GetLogColorSpaceW Lib "gdi32" ( _
    ByVal hColorSpace As LongPtr, _
    ByVal lpBuffer As LongPtr, _
    ByVal nSize 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

GetLogColorSpaceW = ctypes.windll.gdi32.GetLogColorSpaceW
GetLogColorSpaceW.restype = wintypes.BOOL
GetLogColorSpaceW.argtypes = [
    wintypes.HANDLE,  # hColorSpace : HCOLORSPACE
    ctypes.c_void_p,  # lpBuffer : LOGCOLORSPACEW* out
    wintypes.DWORD,  # nSize : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetLogColorSpaceW = Fiddle::Function.new(
  lib['GetLogColorSpaceW'],
  [
    Fiddle::TYPE_VOIDP,  # hColorSpace : HCOLORSPACE
    Fiddle::TYPE_VOIDP,  # lpBuffer : LOGCOLORSPACEW* out
    -Fiddle::TYPE_INT,  # nSize : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "gdi32")]
extern "system" {
    fn GetLogColorSpaceW(
        hColorSpace: *mut core::ffi::c_void,  // HCOLORSPACE
        lpBuffer: *mut LOGCOLORSPACEW,  // LOGCOLORSPACEW* out
        nSize: u32  // DWORD
    ) -> 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 GetLogColorSpaceW(IntPtr hColorSpace, IntPtr lpBuffer, uint nSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetLogColorSpaceW' -Namespace Win32 -PassThru
# $api::GetLogColorSpaceW(hColorSpace, lpBuffer, nSize)

#uselib "GDI32.dll"
#func global GetLogColorSpaceW "GetLogColorSpaceW" wptr, wptr, wptr
; GetLogColorSpaceW hColorSpace, varptr(lpBuffer), nSize   ; 戻り値は stat
; hColorSpace : HCOLORSPACE -> "wptr"
; lpBuffer : LOGCOLORSPACEW* out -> "wptr"
; nSize : DWORD -> "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 GetLogColorSpaceW "GetLogColorSpaceW" sptr, var, int
; res = GetLogColorSpaceW(hColorSpace, lpBuffer, nSize)
; hColorSpace : HCOLORSPACE -> "sptr"
; lpBuffer : LOGCOLORSPACEW* out -> "var"
; nSize : DWORD -> "int"
; ※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。

; BOOL GetLogColorSpaceW(HCOLORSPACE hColorSpace, LOGCOLORSPACEW* lpBuffer, DWORD nSize)
#uselib "GDI32.dll"
#cfunc global GetLogColorSpaceW "GetLogColorSpaceW" intptr, var, int
; res = GetLogColorSpaceW(hColorSpace, lpBuffer, nSize)
; hColorSpace : HCOLORSPACE -> "intptr"
; lpBuffer : LOGCOLORSPACEW* out -> "var"
; nSize : DWORD -> "int"
; ※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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetLogColorSpaceW = gdi32.NewProc("GetLogColorSpaceW")
)

// hColorSpace (HCOLORSPACE), lpBuffer (LOGCOLORSPACEW* out), nSize (DWORD)
r1, _, err := procGetLogColorSpaceW.Call(
	uintptr(hColorSpace),
	uintptr(lpBuffer),
	uintptr(nSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetLogColorSpaceW(
  hColorSpace: THandle;   // HCOLORSPACE
  lpBuffer: Pointer;   // LOGCOLORSPACEW* out
  nSize: DWORD   // DWORD
): BOOL; stdcall;
  external 'GDI32.dll' name 'GetLogColorSpaceW';

result := DllCall("GDI32\GetLogColorSpaceW"
    , "Ptr", hColorSpace   ; HCOLORSPACE
    , "Ptr", lpBuffer   ; LOGCOLORSPACEW* out
    , "UInt", nSize   ; DWORD
    , "Int")   ; return: BOOL

●GetLogColorSpaceW(hColorSpace, lpBuffer, nSize) = DLL("GDI32.dll", "bool GetLogColorSpaceW(void*, void*, dword)")
# 呼び出し: GetLogColorSpaceW(hColorSpace, lpBuffer, nSize)
# hColorSpace : HCOLORSPACE -> "void*"
# lpBuffer : LOGCOLORSPACEW* out -> "void*"
# nSize : DWORD -> "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。