EnumPageFilesW

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

BOOL EnumPageFilesW(
    PENUM_PAGE_FILE_CALLBACKW pCallBackRoutine,
    void* pContext
);

<DllImport("PSAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EnumPageFilesW(
    pCallBackRoutine As IntPtr,   ' PENUM_PAGE_FILE_CALLBACKW
    pContext As IntPtr   ' void* in/out
) As Boolean
End Function

' pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW
' pContext : void* in/out
Declare PtrSafe Function EnumPageFilesW Lib "psapi" ( _
    ByVal pCallBackRoutine As LongPtr, _
    ByVal pContext As LongPtr) As Long
' 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

EnumPageFilesW = ctypes.windll.psapi.EnumPageFilesW
EnumPageFilesW.restype = wintypes.BOOL
EnumPageFilesW.argtypes = [
    ctypes.c_void_p,  # pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW
    ctypes.POINTER(None),  # pContext : void* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PSAPI.dll')
EnumPageFilesW = Fiddle::Function.new(
  lib['EnumPageFilesW'],
  [
    Fiddle::TYPE_VOIDP,  # pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW
    Fiddle::TYPE_VOIDP,  # pContext : void* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "psapi")]
extern "system" {
    fn EnumPageFilesW(
        pCallBackRoutine: *const core::ffi::c_void,  // PENUM_PAGE_FILE_CALLBACKW
        pContext: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("PSAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool EnumPageFilesW(IntPtr pCallBackRoutine, IntPtr pContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PSAPI_EnumPageFilesW' -Namespace Win32 -PassThru
# $api::EnumPageFilesW(pCallBackRoutine, pContext)

#uselib "PSAPI.dll"
#func global EnumPageFilesW "EnumPageFilesW" wptr, wptr
; EnumPageFilesW pCallBackRoutine, pContext   ; 戻り値は stat
; pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW -> "wptr"
; pContext : void* in/out -> "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 "PSAPI.dll"
#cfunc global EnumPageFilesW "EnumPageFilesW" sptr, sptr
; res = EnumPageFilesW(pCallBackRoutine, pContext)
; pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW -> "sptr"
; pContext : void* in/out -> "sptr"

; BOOL EnumPageFilesW(PENUM_PAGE_FILE_CALLBACKW pCallBackRoutine, void* pContext)
#uselib "PSAPI.dll"
#cfunc global EnumPageFilesW "EnumPageFilesW" intptr, intptr
; res = EnumPageFilesW(pCallBackRoutine, pContext)
; pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW -> "intptr"
; pContext : void* in/out -> "intptr"

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

var (
	psapi = windows.NewLazySystemDLL("PSAPI.dll")
	procEnumPageFilesW = psapi.NewProc("EnumPageFilesW")
)

// pCallBackRoutine (PENUM_PAGE_FILE_CALLBACKW), pContext (void* in/out)
r1, _, err := procEnumPageFilesW.Call(
	uintptr(pCallBackRoutine),
	uintptr(pContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EnumPageFilesW(
  pCallBackRoutine: Pointer;   // PENUM_PAGE_FILE_CALLBACKW
  pContext: Pointer   // void* in/out
): BOOL; stdcall;
  external 'PSAPI.dll' name 'EnumPageFilesW';

result := DllCall("PSAPI\EnumPageFilesW"
    , "Ptr", pCallBackRoutine   ; PENUM_PAGE_FILE_CALLBACKW
    , "Ptr", pContext   ; void* in/out
    , "Int")   ; return: BOOL

●EnumPageFilesW(pCallBackRoutine, pContext) = DLL("PSAPI.dll", "bool EnumPageFilesW(void*, void*)")
# 呼び出し: EnumPageFilesW(pCallBackRoutine, pContext)
# pCallBackRoutine : PENUM_PAGE_FILE_CALLBACKW -> "void*"
# pContext : void* in/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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。