SHGetInverseCMAP

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

HRESULT SHGetInverseCMAP(
    BYTE* pbMap,
    DWORD cbMap
);

<DllImport("SHLWAPI.dll", ExactSpelling:=True)>
Public Shared Function SHGetInverseCMAP(
    pbMap As IntPtr,   ' BYTE* out
    cbMap As UInteger   ' DWORD
) As Integer
End Function

' pbMap : BYTE* out
' cbMap : DWORD
Declare PtrSafe Function SHGetInverseCMAP Lib "shlwapi" ( _
    ByVal pbMap As LongPtr, _
    ByVal cbMap 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

SHGetInverseCMAP = ctypes.windll.shlwapi.SHGetInverseCMAP
SHGetInverseCMAP.restype = ctypes.c_int
SHGetInverseCMAP.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # pbMap : BYTE* out
    wintypes.DWORD,  # cbMap : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
SHGetInverseCMAP = Fiddle::Function.new(
  lib['SHGetInverseCMAP'],
  [
    Fiddle::TYPE_VOIDP,  # pbMap : BYTE* out
    -Fiddle::TYPE_INT,  # cbMap : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "shlwapi")]
extern "system" {
    fn SHGetInverseCMAP(
        pbMap: *mut u8,  // BYTE* out
        cbMap: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll")]
public static extern int SHGetInverseCMAP(IntPtr pbMap, uint cbMap);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_SHGetInverseCMAP' -Namespace Win32 -PassThru
# $api::SHGetInverseCMAP(pbMap, cbMap)

#uselib "SHLWAPI.dll"
#func global SHGetInverseCMAP "SHGetInverseCMAP" sptr, sptr
; SHGetInverseCMAP varptr(pbMap), cbMap   ; 戻り値は stat
; pbMap : BYTE* out -> "sptr"
; cbMap : 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 "SHLWAPI.dll"
#cfunc global SHGetInverseCMAP "SHGetInverseCMAP" var, int
; res = SHGetInverseCMAP(pbMap, cbMap)
; pbMap : BYTE* out -> "var"
; cbMap : 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。

; HRESULT SHGetInverseCMAP(BYTE* pbMap, DWORD cbMap)
#uselib "SHLWAPI.dll"
#cfunc global SHGetInverseCMAP "SHGetInverseCMAP" var, int
; res = SHGetInverseCMAP(pbMap, cbMap)
; pbMap : BYTE* out -> "var"
; cbMap : 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 (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procSHGetInverseCMAP = shlwapi.NewProc("SHGetInverseCMAP")
)

// pbMap (BYTE* out), cbMap (DWORD)
r1, _, err := procSHGetInverseCMAP.Call(
	uintptr(pbMap),
	uintptr(cbMap),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHGetInverseCMAP(
  pbMap: Pointer;   // BYTE* out
  cbMap: DWORD   // DWORD
): Integer; stdcall;
  external 'SHLWAPI.dll' name 'SHGetInverseCMAP';

result := DllCall("SHLWAPI\SHGetInverseCMAP"
    , "Ptr", pbMap   ; BYTE* out
    , "UInt", cbMap   ; DWORD
    , "Int")   ; return: HRESULT

●SHGetInverseCMAP(pbMap, cbMap) = DLL("SHLWAPI.dll", "int SHGetInverseCMAP(void*, dword)")
# 呼び出し: SHGetInverseCMAP(pbMap, cbMap)
# pbMap : BYTE* out -> "void*"
# cbMap : 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)。