SHGetFileInfoA

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

UINT_PTR SHGetFileInfoA(
    LPCSTR pszPath,
    FILE_FLAGS_AND_ATTRIBUTES dwFileAttributes,
    SHFILEINFOA* psfi,   // optional
    DWORD cbFileInfo,
    SHGFI_FLAGS uFlags
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SHGetFileInfoA(
    <MarshalAs(UnmanagedType.LPStr)> pszPath As String,   ' LPCSTR
    dwFileAttributes As UInteger,   ' FILE_FLAGS_AND_ATTRIBUTES
    psfi As IntPtr,   ' SHFILEINFOA* optional, in/out
    cbFileInfo As UInteger,   ' DWORD
    uFlags As UInteger   ' SHGFI_FLAGS
) As UIntPtr
End Function

' pszPath : LPCSTR
' dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES
' psfi : SHFILEINFOA* optional, in/out
' cbFileInfo : DWORD
' uFlags : SHGFI_FLAGS
Declare PtrSafe Function SHGetFileInfoA Lib "shell32" ( _
    ByVal pszPath As String, _
    ByVal dwFileAttributes As Long, _
    ByVal psfi As LongPtr, _
    ByVal cbFileInfo As Long, _
    ByVal uFlags As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SHGetFileInfoA = ctypes.windll.shell32.SHGetFileInfoA
SHGetFileInfoA.restype = ctypes.c_size_t
SHGetFileInfoA.argtypes = [
    wintypes.LPCSTR,  # pszPath : LPCSTR
    wintypes.DWORD,  # dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES
    ctypes.c_void_p,  # psfi : SHFILEINFOA* optional, in/out
    wintypes.DWORD,  # cbFileInfo : DWORD
    wintypes.DWORD,  # uFlags : SHGFI_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHGetFileInfoA = Fiddle::Function.new(
  lib['SHGetFileInfoA'],
  [
    Fiddle::TYPE_VOIDP,  # pszPath : LPCSTR
    -Fiddle::TYPE_INT,  # dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES
    Fiddle::TYPE_VOIDP,  # psfi : SHFILEINFOA* optional, in/out
    -Fiddle::TYPE_INT,  # cbFileInfo : DWORD
    -Fiddle::TYPE_INT,  # uFlags : SHGFI_FLAGS
  ],
  Fiddle::TYPE_UINTPTR_T)

#[link(name = "shell32")]
extern "system" {
    fn SHGetFileInfoA(
        pszPath: *const u8,  // LPCSTR
        dwFileAttributes: u32,  // FILE_FLAGS_AND_ATTRIBUTES
        psfi: *mut SHFILEINFOA,  // SHFILEINFOA* optional, in/out
        cbFileInfo: u32,  // DWORD
        uFlags: u32  // SHGFI_FLAGS
    ) -> usize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi)]
public static extern UIntPtr SHGetFileInfoA([MarshalAs(UnmanagedType.LPStr)] string pszPath, uint dwFileAttributes, IntPtr psfi, uint cbFileInfo, uint uFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHGetFileInfoA' -Namespace Win32 -PassThru
# $api::SHGetFileInfoA(pszPath, dwFileAttributes, psfi, cbFileInfo, uFlags)

#uselib "SHELL32.dll"
#func global SHGetFileInfoA "SHGetFileInfoA" sptr, sptr, sptr, sptr, sptr
; SHGetFileInfoA pszPath, dwFileAttributes, varptr(psfi), cbFileInfo, uFlags   ; 戻り値は stat
; pszPath : LPCSTR -> "sptr"
; dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "sptr"
; psfi : SHFILEINFOA* optional, in/out -> "sptr"
; cbFileInfo : DWORD -> "sptr"
; uFlags : SHGFI_FLAGS -> "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 "SHELL32.dll"
#cfunc global SHGetFileInfoA "SHGetFileInfoA" str, int, var, int, int
; res = SHGetFileInfoA(pszPath, dwFileAttributes, psfi, cbFileInfo, uFlags)
; pszPath : LPCSTR -> "str"
; dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "int"
; psfi : SHFILEINFOA* optional, in/out -> "var"
; cbFileInfo : DWORD -> "int"
; uFlags : SHGFI_FLAGS -> "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。

; UINT_PTR SHGetFileInfoA(LPCSTR pszPath, FILE_FLAGS_AND_ATTRIBUTES dwFileAttributes, SHFILEINFOA* psfi, DWORD cbFileInfo, SHGFI_FLAGS uFlags)
#uselib "SHELL32.dll"
#cfunc global SHGetFileInfoA "SHGetFileInfoA" str, int, var, int, int
; res = SHGetFileInfoA(pszPath, dwFileAttributes, psfi, cbFileInfo, uFlags)
; pszPath : LPCSTR -> "str"
; dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "int"
; psfi : SHFILEINFOA* optional, in/out -> "var"
; cbFileInfo : DWORD -> "int"
; uFlags : SHGFI_FLAGS -> "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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHGetFileInfoA = shell32.NewProc("SHGetFileInfoA")
)

// pszPath (LPCSTR), dwFileAttributes (FILE_FLAGS_AND_ATTRIBUTES), psfi (SHFILEINFOA* optional, in/out), cbFileInfo (DWORD), uFlags (SHGFI_FLAGS)
r1, _, err := procSHGetFileInfoA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszPath))),
	uintptr(dwFileAttributes),
	uintptr(psfi),
	uintptr(cbFileInfo),
	uintptr(uFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UINT_PTR

function SHGetFileInfoA(
  pszPath: PAnsiChar;   // LPCSTR
  dwFileAttributes: DWORD;   // FILE_FLAGS_AND_ATTRIBUTES
  psfi: Pointer;   // SHFILEINFOA* optional, in/out
  cbFileInfo: DWORD;   // DWORD
  uFlags: DWORD   // SHGFI_FLAGS
): NativeUInt; stdcall;
  external 'SHELL32.dll' name 'SHGetFileInfoA';

result := DllCall("SHELL32\SHGetFileInfoA"
    , "AStr", pszPath   ; LPCSTR
    , "UInt", dwFileAttributes   ; FILE_FLAGS_AND_ATTRIBUTES
    , "Ptr", psfi   ; SHFILEINFOA* optional, in/out
    , "UInt", cbFileInfo   ; DWORD
    , "UInt", uFlags   ; SHGFI_FLAGS
    , "UPtr")   ; return: UINT_PTR

●SHGetFileInfoA(pszPath, dwFileAttributes, psfi, cbFileInfo, uFlags) = DLL("SHELL32.dll", "int SHGetFileInfoA(char*, dword, void*, dword, dword)")
# 呼び出し: SHGetFileInfoA(pszPath, dwFileAttributes, psfi, cbFileInfo, uFlags)
# pszPath : LPCSTR -> "char*"
# dwFileAttributes : FILE_FLAGS_AND_ATTRIBUTES -> "dword"
# psfi : SHFILEINFOA* optional, in/out -> "void*"
# cbFileInfo : DWORD -> "dword"
# uFlags : SHGFI_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)。