ConvertIndexToColorName

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

BOOL ConvertIndexToColorName(
    INT_PTR hProfile,
    DWORD* paIndex,
    CHAR** paColorName,
    DWORD dwCount
);

<DllImport("mscms.dll", ExactSpelling:=True)>
Public Shared Function ConvertIndexToColorName(
    hProfile As IntPtr,   ' INT_PTR
    ByRef paIndex As UInteger,   ' DWORD*
    paColorName As IntPtr,   ' CHAR** out
    dwCount As UInteger   ' DWORD
) As Boolean
End Function

' hProfile : INT_PTR
' paIndex : DWORD*
' paColorName : CHAR** out
' dwCount : DWORD
Declare PtrSafe Function ConvertIndexToColorName Lib "mscms" ( _
    ByVal hProfile As LongPtr, _
    ByRef paIndex As Long, _
    ByVal paColorName As LongPtr, _
    ByVal dwCount 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

ConvertIndexToColorName = ctypes.windll.mscms.ConvertIndexToColorName
ConvertIndexToColorName.restype = wintypes.BOOL
ConvertIndexToColorName.argtypes = [
    ctypes.c_ssize_t,  # hProfile : INT_PTR
    ctypes.POINTER(wintypes.DWORD),  # paIndex : DWORD*
    ctypes.c_void_p,  # paColorName : CHAR** out
    wintypes.DWORD,  # dwCount : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('mscms.dll')
ConvertIndexToColorName = Fiddle::Function.new(
  lib['ConvertIndexToColorName'],
  [
    Fiddle::TYPE_INTPTR_T,  # hProfile : INT_PTR
    Fiddle::TYPE_VOIDP,  # paIndex : DWORD*
    Fiddle::TYPE_VOIDP,  # paColorName : CHAR** out
    -Fiddle::TYPE_INT,  # dwCount : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "mscms")]
extern "system" {
    fn ConvertIndexToColorName(
        hProfile: isize,  // INT_PTR
        paIndex: *mut u32,  // DWORD*
        paColorName: *mut *mut i8,  // CHAR** out
        dwCount: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("mscms.dll")]
public static extern bool ConvertIndexToColorName(IntPtr hProfile, ref uint paIndex, IntPtr paColorName, uint dwCount);
"@
$api = Add-Type -MemberDefinition $sig -Name 'mscms_ConvertIndexToColorName' -Namespace Win32 -PassThru
# $api::ConvertIndexToColorName(hProfile, paIndex, paColorName, dwCount)

#uselib "mscms.dll"
#func global ConvertIndexToColorName "ConvertIndexToColorName" sptr, sptr, sptr, sptr
; ConvertIndexToColorName hProfile, varptr(paIndex), varptr(paColorName), dwCount   ; 戻り値は stat
; hProfile : INT_PTR -> "sptr"
; paIndex : DWORD* -> "sptr"
; paColorName : CHAR** out -> "sptr"
; dwCount : 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 "mscms.dll"
#cfunc global ConvertIndexToColorName "ConvertIndexToColorName" sptr, var, var, int
; res = ConvertIndexToColorName(hProfile, paIndex, paColorName, dwCount)
; hProfile : INT_PTR -> "sptr"
; paIndex : DWORD* -> "var"
; paColorName : CHAR** out -> "var"
; dwCount : 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 ConvertIndexToColorName(INT_PTR hProfile, DWORD* paIndex, CHAR** paColorName, DWORD dwCount)
#uselib "mscms.dll"
#cfunc global ConvertIndexToColorName "ConvertIndexToColorName" intptr, var, var, int
; res = ConvertIndexToColorName(hProfile, paIndex, paColorName, dwCount)
; hProfile : INT_PTR -> "intptr"
; paIndex : DWORD* -> "var"
; paColorName : CHAR** out -> "var"
; dwCount : 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 (
	mscms = windows.NewLazySystemDLL("mscms.dll")
	procConvertIndexToColorName = mscms.NewProc("ConvertIndexToColorName")
)

// hProfile (INT_PTR), paIndex (DWORD*), paColorName (CHAR** out), dwCount (DWORD)
r1, _, err := procConvertIndexToColorName.Call(
	uintptr(hProfile),
	uintptr(paIndex),
	uintptr(paColorName),
	uintptr(dwCount),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ConvertIndexToColorName(
  hProfile: NativeInt;   // INT_PTR
  paIndex: Pointer;   // DWORD*
  paColorName: Pointer;   // CHAR** out
  dwCount: DWORD   // DWORD
): BOOL; stdcall;
  external 'mscms.dll' name 'ConvertIndexToColorName';

result := DllCall("mscms\ConvertIndexToColorName"
    , "Ptr", hProfile   ; INT_PTR
    , "Ptr", paIndex   ; DWORD*
    , "Ptr", paColorName   ; CHAR** out
    , "UInt", dwCount   ; DWORD
    , "Int")   ; return: BOOL

●ConvertIndexToColorName(hProfile, paIndex, paColorName, dwCount) = DLL("mscms.dll", "bool ConvertIndexToColorName(int, void*, void*, dword)")
# 呼び出し: ConvertIndexToColorName(hProfile, paIndex, paColorName, dwCount)
# hProfile : INT_PTR -> "int"
# paIndex : DWORD* -> "void*"
# paColorName : CHAR** out -> "void*"
# dwCount : 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)。