ImageList_LoadImageW

// COMCTL32.dll  (Unicode / -W)
#include <windows.h>

HIMAGELIST ImageList_LoadImageW(
    HINSTANCE hi,
    LPCWSTR lpbmp,
    INT cx,
    INT cGrow,
    COLORREF crMask,
    DWORD uType,
    IMAGE_FLAGS uFlags
);

<DllImport("COMCTL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ImageList_LoadImageW(
    hi As IntPtr,   ' HINSTANCE
    <MarshalAs(UnmanagedType.LPWStr)> lpbmp As String,   ' LPCWSTR
    cx As Integer,   ' INT
    cGrow As Integer,   ' INT
    crMask As UInteger,   ' COLORREF
    uType As UInteger,   ' DWORD
    uFlags As UInteger   ' IMAGE_FLAGS
) As IntPtr
End Function

' hi : HINSTANCE
' lpbmp : LPCWSTR
' cx : INT
' cGrow : INT
' crMask : COLORREF
' uType : DWORD
' uFlags : IMAGE_FLAGS
Declare PtrSafe Function ImageList_LoadImageW Lib "comctl32" ( _
    ByVal hi As LongPtr, _
    ByVal lpbmp As LongPtr, _
    ByVal cx As Long, _
    ByVal cGrow As Long, _
    ByVal crMask As Long, _
    ByVal uType As Long, _
    ByVal uFlags As Long) As LongPtr
' 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

ImageList_LoadImageW = ctypes.windll.comctl32.ImageList_LoadImageW
ImageList_LoadImageW.restype = ctypes.c_ssize_t
ImageList_LoadImageW.argtypes = [
    wintypes.HANDLE,  # hi : HINSTANCE
    wintypes.LPCWSTR,  # lpbmp : LPCWSTR
    ctypes.c_int,  # cx : INT
    ctypes.c_int,  # cGrow : INT
    wintypes.DWORD,  # crMask : COLORREF
    wintypes.DWORD,  # uType : DWORD
    wintypes.DWORD,  # uFlags : IMAGE_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('COMCTL32.dll')
ImageList_LoadImageW = Fiddle::Function.new(
  lib['ImageList_LoadImageW'],
  [
    Fiddle::TYPE_VOIDP,  # hi : HINSTANCE
    Fiddle::TYPE_VOIDP,  # lpbmp : LPCWSTR
    Fiddle::TYPE_INT,  # cx : INT
    Fiddle::TYPE_INT,  # cGrow : INT
    -Fiddle::TYPE_INT,  # crMask : COLORREF
    -Fiddle::TYPE_INT,  # uType : DWORD
    -Fiddle::TYPE_INT,  # uFlags : IMAGE_FLAGS
  ],
  Fiddle::TYPE_INTPTR_T)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "comctl32")]
extern "system" {
    fn ImageList_LoadImageW(
        hi: *mut core::ffi::c_void,  // HINSTANCE
        lpbmp: *const u16,  // LPCWSTR
        cx: i32,  // INT
        cGrow: i32,  // INT
        crMask: u32,  // COLORREF
        uType: u32,  // DWORD
        uFlags: u32  // IMAGE_FLAGS
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("COMCTL32.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr ImageList_LoadImageW(IntPtr hi, [MarshalAs(UnmanagedType.LPWStr)] string lpbmp, int cx, int cGrow, uint crMask, uint uType, uint uFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'COMCTL32_ImageList_LoadImageW' -Namespace Win32 -PassThru
# $api::ImageList_LoadImageW(hi, lpbmp, cx, cGrow, crMask, uType, uFlags)

#uselib "COMCTL32.dll"
#func global ImageList_LoadImageW "ImageList_LoadImageW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; ImageList_LoadImageW hi, lpbmp, cx, cGrow, crMask, uType, uFlags   ; 戻り値は stat
; hi : HINSTANCE -> "wptr"
; lpbmp : LPCWSTR -> "wptr"
; cx : INT -> "wptr"
; cGrow : INT -> "wptr"
; crMask : COLORREF -> "wptr"
; uType : DWORD -> "wptr"
; uFlags : IMAGE_FLAGS -> "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 "COMCTL32.dll"
#cfunc global ImageList_LoadImageW "ImageList_LoadImageW" sptr, wstr, int, int, int, int, int
; res = ImageList_LoadImageW(hi, lpbmp, cx, cGrow, crMask, uType, uFlags)
; hi : HINSTANCE -> "sptr"
; lpbmp : LPCWSTR -> "wstr"
; cx : INT -> "int"
; cGrow : INT -> "int"
; crMask : COLORREF -> "int"
; uType : DWORD -> "int"
; uFlags : IMAGE_FLAGS -> "int"

; HIMAGELIST ImageList_LoadImageW(HINSTANCE hi, LPCWSTR lpbmp, INT cx, INT cGrow, COLORREF crMask, DWORD uType, IMAGE_FLAGS uFlags)
#uselib "COMCTL32.dll"
#cfunc global ImageList_LoadImageW "ImageList_LoadImageW" intptr, wstr, int, int, int, int, int
; res = ImageList_LoadImageW(hi, lpbmp, cx, cGrow, crMask, uType, uFlags)
; hi : HINSTANCE -> "intptr"
; lpbmp : LPCWSTR -> "wstr"
; cx : INT -> "int"
; cGrow : INT -> "int"
; crMask : COLORREF -> "int"
; uType : DWORD -> "int"
; uFlags : IMAGE_FLAGS -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	comctl32 = windows.NewLazySystemDLL("COMCTL32.dll")
	procImageList_LoadImageW = comctl32.NewProc("ImageList_LoadImageW")
)

// hi (HINSTANCE), lpbmp (LPCWSTR), cx (INT), cGrow (INT), crMask (COLORREF), uType (DWORD), uFlags (IMAGE_FLAGS)
r1, _, err := procImageList_LoadImageW.Call(
	uintptr(hi),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpbmp))),
	uintptr(cx),
	uintptr(cGrow),
	uintptr(crMask),
	uintptr(uType),
	uintptr(uFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HIMAGELIST

function ImageList_LoadImageW(
  hi: THandle;   // HINSTANCE
  lpbmp: PWideChar;   // LPCWSTR
  cx: Integer;   // INT
  cGrow: Integer;   // INT
  crMask: DWORD;   // COLORREF
  uType: DWORD;   // DWORD
  uFlags: DWORD   // IMAGE_FLAGS
): NativeInt; stdcall;
  external 'COMCTL32.dll' name 'ImageList_LoadImageW';

result := DllCall("COMCTL32\ImageList_LoadImageW"
    , "Ptr", hi   ; HINSTANCE
    , "WStr", lpbmp   ; LPCWSTR
    , "Int", cx   ; INT
    , "Int", cGrow   ; INT
    , "UInt", crMask   ; COLORREF
    , "UInt", uType   ; DWORD
    , "UInt", uFlags   ; IMAGE_FLAGS
    , "Ptr")   ; return: HIMAGELIST

●ImageList_LoadImageW(hi, lpbmp, cx, cGrow, crMask, uType, uFlags) = DLL("COMCTL32.dll", "int ImageList_LoadImageW(void*, char*, int, int, dword, dword, dword)")
# 呼び出し: ImageList_LoadImageW(hi, lpbmp, cx, cGrow, crMask, uType, uFlags)
# hi : HINSTANCE -> "void*"
# lpbmp : LPCWSTR -> "char*"
# cx : INT -> "int"
# cGrow : INT -> "int"
# crMask : COLORREF -> "dword"
# uType : DWORD -> "dword"
# uFlags : IMAGE_FLAGS -> "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。