CMCheckColors

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

BOOL CMCheckColors(
    INT_PTR hcmTransform,
    COLOR* lpaInputColors,
    DWORD nColors,
    COLORTYPE ctInput,
    BYTE* lpaResult
);

<DllImport("ICM32.dll", ExactSpelling:=True)>
Public Shared Function CMCheckColors(
    hcmTransform As IntPtr,   ' INT_PTR
    lpaInputColors As IntPtr,   ' COLOR*
    nColors As UInteger,   ' DWORD
    ctInput As Integer,   ' COLORTYPE
    lpaResult As IntPtr   ' BYTE* out
) As Boolean
End Function

' hcmTransform : INT_PTR
' lpaInputColors : COLOR*
' nColors : DWORD
' ctInput : COLORTYPE
' lpaResult : BYTE* out
Declare PtrSafe Function CMCheckColors Lib "icm32" ( _
    ByVal hcmTransform As LongPtr, _
    ByVal lpaInputColors As LongPtr, _
    ByVal nColors As Long, _
    ByVal ctInput As Long, _
    ByVal lpaResult 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

CMCheckColors = ctypes.windll.icm32.CMCheckColors
CMCheckColors.restype = wintypes.BOOL
CMCheckColors.argtypes = [
    ctypes.c_ssize_t,  # hcmTransform : INT_PTR
    ctypes.c_void_p,  # lpaInputColors : COLOR*
    wintypes.DWORD,  # nColors : DWORD
    ctypes.c_int,  # ctInput : COLORTYPE
    ctypes.POINTER(ctypes.c_ubyte),  # lpaResult : BYTE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ICM32.dll')
CMCheckColors = Fiddle::Function.new(
  lib['CMCheckColors'],
  [
    Fiddle::TYPE_INTPTR_T,  # hcmTransform : INT_PTR
    Fiddle::TYPE_VOIDP,  # lpaInputColors : COLOR*
    -Fiddle::TYPE_INT,  # nColors : DWORD
    Fiddle::TYPE_INT,  # ctInput : COLORTYPE
    Fiddle::TYPE_VOIDP,  # lpaResult : BYTE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "icm32")]
extern "system" {
    fn CMCheckColors(
        hcmTransform: isize,  // INT_PTR
        lpaInputColors: *mut COLOR,  // COLOR*
        nColors: u32,  // DWORD
        ctInput: i32,  // COLORTYPE
        lpaResult: *mut u8  // BYTE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ICM32.dll")]
public static extern bool CMCheckColors(IntPtr hcmTransform, IntPtr lpaInputColors, uint nColors, int ctInput, IntPtr lpaResult);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ICM32_CMCheckColors' -Namespace Win32 -PassThru
# $api::CMCheckColors(hcmTransform, lpaInputColors, nColors, ctInput, lpaResult)

#uselib "ICM32.dll"
#func global CMCheckColors "CMCheckColors" sptr, sptr, sptr, sptr, sptr
; CMCheckColors hcmTransform, varptr(lpaInputColors), nColors, ctInput, varptr(lpaResult)   ; 戻り値は stat
; hcmTransform : INT_PTR -> "sptr"
; lpaInputColors : COLOR* -> "sptr"
; nColors : DWORD -> "sptr"
; ctInput : COLORTYPE -> "sptr"
; lpaResult : BYTE* 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 "ICM32.dll"
#cfunc global CMCheckColors "CMCheckColors" sptr, var, int, int, var
; res = CMCheckColors(hcmTransform, lpaInputColors, nColors, ctInput, lpaResult)
; hcmTransform : INT_PTR -> "sptr"
; lpaInputColors : COLOR* -> "var"
; nColors : DWORD -> "int"
; ctInput : COLORTYPE -> "int"
; lpaResult : BYTE* out -> "var"
; ※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 CMCheckColors(INT_PTR hcmTransform, COLOR* lpaInputColors, DWORD nColors, COLORTYPE ctInput, BYTE* lpaResult)
#uselib "ICM32.dll"
#cfunc global CMCheckColors "CMCheckColors" intptr, var, int, int, var
; res = CMCheckColors(hcmTransform, lpaInputColors, nColors, ctInput, lpaResult)
; hcmTransform : INT_PTR -> "intptr"
; lpaInputColors : COLOR* -> "var"
; nColors : DWORD -> "int"
; ctInput : COLORTYPE -> "int"
; lpaResult : BYTE* out -> "var"
; ※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")
	procCMCheckColors = icm32.NewProc("CMCheckColors")
)

// hcmTransform (INT_PTR), lpaInputColors (COLOR*), nColors (DWORD), ctInput (COLORTYPE), lpaResult (BYTE* out)
r1, _, err := procCMCheckColors.Call(
	uintptr(hcmTransform),
	uintptr(lpaInputColors),
	uintptr(nColors),
	uintptr(ctInput),
	uintptr(lpaResult),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CMCheckColors(
  hcmTransform: NativeInt;   // INT_PTR
  lpaInputColors: Pointer;   // COLOR*
  nColors: DWORD;   // DWORD
  ctInput: Integer;   // COLORTYPE
  lpaResult: Pointer   // BYTE* out
): BOOL; stdcall;
  external 'ICM32.dll' name 'CMCheckColors';

result := DllCall("ICM32\CMCheckColors"
    , "Ptr", hcmTransform   ; INT_PTR
    , "Ptr", lpaInputColors   ; COLOR*
    , "UInt", nColors   ; DWORD
    , "Int", ctInput   ; COLORTYPE
    , "Ptr", lpaResult   ; BYTE* out
    , "Int")   ; return: BOOL

●CMCheckColors(hcmTransform, lpaInputColors, nColors, ctInput, lpaResult) = DLL("ICM32.dll", "bool CMCheckColors(int, void*, dword, int, void*)")
# 呼び出し: CMCheckColors(hcmTransform, lpaInputColors, nColors, ctInput, lpaResult)
# hcmTransform : INT_PTR -> "int"
# lpaInputColors : COLOR* -> "void*"
# nColors : DWORD -> "dword"
# ctInput : COLORTYPE -> "int"
# lpaResult : BYTE* 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)。