CMTranslateRGB

// ICM32.dll
#include <windows.h>

BOOL CMTranslateRGB(
    INT_PTR hcmTransform,
    COLORREF ColorRef,
    DWORD* lpColorRef,
    DWORD dwFlags
);

<DllImport("ICM32.dll", ExactSpelling:=True)>
Public Shared Function CMTranslateRGB(
    hcmTransform As IntPtr,   ' INT_PTR
    ColorRef As UInteger,   ' COLORREF
    <Out> ByRef lpColorRef As UInteger,   ' DWORD* out
    dwFlags As UInteger   ' DWORD
) As Boolean
End Function

' hcmTransform : INT_PTR
' ColorRef : COLORREF
' lpColorRef : DWORD* out
' dwFlags : DWORD
Declare PtrSafe Function CMTranslateRGB Lib "icm32" ( _
    ByVal hcmTransform As LongPtr, _
    ByVal ColorRef As Long, _
    ByRef lpColorRef As Long, _
    ByVal dwFlags As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CMTranslateRGB = ctypes.windll.icm32.CMTranslateRGB
CMTranslateRGB.restype = wintypes.BOOL
CMTranslateRGB.argtypes = [
    ctypes.c_ssize_t,  # hcmTransform : INT_PTR
    wintypes.DWORD,  # ColorRef : COLORREF
    ctypes.POINTER(wintypes.DWORD),  # lpColorRef : DWORD* out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ICM32.dll')
CMTranslateRGB = Fiddle::Function.new(
  lib['CMTranslateRGB'],
  [
    Fiddle::TYPE_INTPTR_T,  # hcmTransform : INT_PTR
    -Fiddle::TYPE_INT,  # ColorRef : COLORREF
    Fiddle::TYPE_VOIDP,  # lpColorRef : DWORD* out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "icm32")]
extern "system" {
    fn CMTranslateRGB(
        hcmTransform: isize,  // INT_PTR
        ColorRef: u32,  // COLORREF
        lpColorRef: *mut u32,  // DWORD* out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ICM32.dll")]
public static extern bool CMTranslateRGB(IntPtr hcmTransform, uint ColorRef, out uint lpColorRef, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ICM32_CMTranslateRGB' -Namespace Win32 -PassThru
# $api::CMTranslateRGB(hcmTransform, ColorRef, lpColorRef, dwFlags)

#uselib "ICM32.dll"
#func global CMTranslateRGB "CMTranslateRGB" sptr, sptr, sptr, sptr
; CMTranslateRGB hcmTransform, ColorRef, varptr(lpColorRef), dwFlags   ; 戻り値は stat
; hcmTransform : INT_PTR -> "sptr"
; ColorRef : COLORREF -> "sptr"
; lpColorRef : DWORD* out -> "sptr"
; dwFlags : DWORD -> "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 "ICM32.dll"
#cfunc global CMTranslateRGB "CMTranslateRGB" sptr, int, var, int
; res = CMTranslateRGB(hcmTransform, ColorRef, lpColorRef, dwFlags)
; hcmTransform : INT_PTR -> "sptr"
; ColorRef : COLORREF -> "int"
; lpColorRef : DWORD* out -> "var"
; dwFlags : 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 CMTranslateRGB(INT_PTR hcmTransform, COLORREF ColorRef, DWORD* lpColorRef, DWORD dwFlags)
#uselib "ICM32.dll"
#cfunc global CMTranslateRGB "CMTranslateRGB" intptr, int, var, int
; res = CMTranslateRGB(hcmTransform, ColorRef, lpColorRef, dwFlags)
; hcmTransform : INT_PTR -> "intptr"
; ColorRef : COLORREF -> "int"
; lpColorRef : DWORD* out -> "var"
; dwFlags : 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 (
	icm32 = windows.NewLazySystemDLL("ICM32.dll")
	procCMTranslateRGB = icm32.NewProc("CMTranslateRGB")
)

// hcmTransform (INT_PTR), ColorRef (COLORREF), lpColorRef (DWORD* out), dwFlags (DWORD)
r1, _, err := procCMTranslateRGB.Call(
	uintptr(hcmTransform),
	uintptr(ColorRef),
	uintptr(lpColorRef),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CMTranslateRGB(
  hcmTransform: NativeInt;   // INT_PTR
  ColorRef: DWORD;   // COLORREF
  lpColorRef: Pointer;   // DWORD* out
  dwFlags: DWORD   // DWORD
): BOOL; stdcall;
  external 'ICM32.dll' name 'CMTranslateRGB';

result := DllCall("ICM32\CMTranslateRGB"
    , "Ptr", hcmTransform   ; INT_PTR
    , "UInt", ColorRef   ; COLORREF
    , "Ptr", lpColorRef   ; DWORD* out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: BOOL

●CMTranslateRGB(hcmTransform, ColorRef, lpColorRef, dwFlags) = DLL("ICM32.dll", "bool CMTranslateRGB(int, dword, void*, dword)")
# 呼び出し: CMTranslateRGB(hcmTransform, ColorRef, lpColorRef, dwFlags)
# hcmTransform : INT_PTR -> "int"
# ColorRef : COLORREF -> "dword"
# lpColorRef : DWORD* out -> "void*"
# dwFlags : 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)。