CfGetPlaceholderStateFromFileInfo

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

CF_PLACEHOLDER_STATE CfGetPlaceholderStateFromFileInfo(
    const void* InfoBuffer,
    FILE_INFO_BY_HANDLE_CLASS InfoClass
);

<DllImport("cldapi.dll", ExactSpelling:=True)>
Public Shared Function CfGetPlaceholderStateFromFileInfo(
    InfoBuffer As IntPtr,   ' void*
    InfoClass As Integer   ' FILE_INFO_BY_HANDLE_CLASS
) As UInteger
End Function

' InfoBuffer : void*
' InfoClass : FILE_INFO_BY_HANDLE_CLASS
Declare PtrSafe Function CfGetPlaceholderStateFromFileInfo Lib "cldapi" ( _
    ByVal InfoBuffer As LongPtr, _
    ByVal InfoClass 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

CfGetPlaceholderStateFromFileInfo = ctypes.windll.cldapi.CfGetPlaceholderStateFromFileInfo
CfGetPlaceholderStateFromFileInfo.restype = wintypes.DWORD
CfGetPlaceholderStateFromFileInfo.argtypes = [
    ctypes.POINTER(None),  # InfoBuffer : void*
    ctypes.c_int,  # InfoClass : FILE_INFO_BY_HANDLE_CLASS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('cldapi.dll')
CfGetPlaceholderStateFromFileInfo = Fiddle::Function.new(
  lib['CfGetPlaceholderStateFromFileInfo'],
  [
    Fiddle::TYPE_VOIDP,  # InfoBuffer : void*
    Fiddle::TYPE_INT,  # InfoClass : FILE_INFO_BY_HANDLE_CLASS
  ],
  -Fiddle::TYPE_INT)

#[link(name = "cldapi")]
extern "system" {
    fn CfGetPlaceholderStateFromFileInfo(
        InfoBuffer: *const (),  // void*
        InfoClass: i32  // FILE_INFO_BY_HANDLE_CLASS
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("cldapi.dll")]
public static extern uint CfGetPlaceholderStateFromFileInfo(IntPtr InfoBuffer, int InfoClass);
"@
$api = Add-Type -MemberDefinition $sig -Name 'cldapi_CfGetPlaceholderStateFromFileInfo' -Namespace Win32 -PassThru
# $api::CfGetPlaceholderStateFromFileInfo(InfoBuffer, InfoClass)

#uselib "cldapi.dll"
#func global CfGetPlaceholderStateFromFileInfo "CfGetPlaceholderStateFromFileInfo" sptr, sptr
; CfGetPlaceholderStateFromFileInfo InfoBuffer, InfoClass   ; 戻り値は stat
; InfoBuffer : void* -> "sptr"
; InfoClass : FILE_INFO_BY_HANDLE_CLASS -> "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 "cldapi.dll"
#cfunc global CfGetPlaceholderStateFromFileInfo "CfGetPlaceholderStateFromFileInfo" sptr, int
; res = CfGetPlaceholderStateFromFileInfo(InfoBuffer, InfoClass)
; InfoBuffer : void* -> "sptr"
; InfoClass : FILE_INFO_BY_HANDLE_CLASS -> "int"

; CF_PLACEHOLDER_STATE CfGetPlaceholderStateFromFileInfo(void* InfoBuffer, FILE_INFO_BY_HANDLE_CLASS InfoClass)
#uselib "cldapi.dll"
#cfunc global CfGetPlaceholderStateFromFileInfo "CfGetPlaceholderStateFromFileInfo" intptr, int
; res = CfGetPlaceholderStateFromFileInfo(InfoBuffer, InfoClass)
; InfoBuffer : void* -> "intptr"
; InfoClass : FILE_INFO_BY_HANDLE_CLASS -> "int"

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

var (
	cldapi = windows.NewLazySystemDLL("cldapi.dll")
	procCfGetPlaceholderStateFromFileInfo = cldapi.NewProc("CfGetPlaceholderStateFromFileInfo")
)

// InfoBuffer (void*), InfoClass (FILE_INFO_BY_HANDLE_CLASS)
r1, _, err := procCfGetPlaceholderStateFromFileInfo.Call(
	uintptr(InfoBuffer),
	uintptr(InfoClass),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CF_PLACEHOLDER_STATE

function CfGetPlaceholderStateFromFileInfo(
  InfoBuffer: Pointer;   // void*
  InfoClass: Integer   // FILE_INFO_BY_HANDLE_CLASS
): DWORD; stdcall;
  external 'cldapi.dll' name 'CfGetPlaceholderStateFromFileInfo';

result := DllCall("cldapi\CfGetPlaceholderStateFromFileInfo"
    , "Ptr", InfoBuffer   ; void*
    , "Int", InfoClass   ; FILE_INFO_BY_HANDLE_CLASS
    , "UInt")   ; return: CF_PLACEHOLDER_STATE

●CfGetPlaceholderStateFromFileInfo(InfoBuffer, InfoClass) = DLL("cldapi.dll", "dword CfGetPlaceholderStateFromFileInfo(void*, int)")
# 呼び出し: CfGetPlaceholderStateFromFileInfo(InfoBuffer, InfoClass)
# InfoBuffer : void* -> "void*"
# InfoClass : FILE_INFO_BY_HANDLE_CLASS -> "int"
# 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)。