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CfGetPlaceholderRangeInfoForHydration

関数
実体化処理向けにプレースホルダー範囲情報を取得する。
DLLcldapi.dll呼出規約winapi
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シグネチャ

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

HRESULT CfGetPlaceholderRangeInfoForHydration(
    CF_CONNECTION_KEY ConnectionKey,
    LONGLONG TransferKey,
    LONGLONG FileId,
    CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass,
    LONGLONG StartingOffset,
    LONGLONG RangeLength,
    void* InfoBuffer,
    DWORD InfoBufferSize,
    DWORD* InfoBufferWritten   // optional
);

パラメーター

名前型方向説明
ConnectionKeyCF_CONNECTION_KEYin操作を行う接続を識別するCF_CONNECTION_KEY。
TransferKeyLONGLONGin対象ファイルの転送キー。コールバック内のハイドレート要求で得た値を渡す。
FileIdLONGLONGin対象ファイルを識別するファイルID。
InfoClassCF_PLACEHOLDER_RANGE_INFO_CLASSin取得する範囲情報の種別を示すCF_PLACEHOLDER_RANGE_INFO_CLASS列挙値。
StartingOffsetLONGLONGin問い合わせる範囲の開始バイトオフセット。
RangeLengthLONGLONGin問い合わせる範囲のバイト長。
InfoBuffervoid*out取得した範囲情報を受け取るバッファへのポインタ。出力用。
InfoBufferSizeDWORDinInfoBufferのバイト単位のサイズ。
InfoBufferWrittenDWORD*outoptional実際に書き込まれたバイト数を受け取るDWORDへのポインタ。出力用。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT CfGetPlaceholderRangeInfoForHydration(
    CF_CONNECTION_KEY ConnectionKey,
    LONGLONG TransferKey,
    LONGLONG FileId,
    CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass,
    LONGLONG StartingOffset,
    LONGLONG RangeLength,
    void* InfoBuffer,
    DWORD InfoBufferSize,
    DWORD* InfoBufferWritten   // optional
);
[DllImport("cldapi.dll", ExactSpelling = true)]
static extern int CfGetPlaceholderRangeInfoForHydration(
    long ConnectionKey,   // CF_CONNECTION_KEY
    long TransferKey,   // LONGLONG
    long FileId,   // LONGLONG
    int InfoClass,   // CF_PLACEHOLDER_RANGE_INFO_CLASS
    long StartingOffset,   // LONGLONG
    long RangeLength,   // LONGLONG
    IntPtr InfoBuffer,   // void* out
    uint InfoBufferSize,   // DWORD
    IntPtr InfoBufferWritten   // DWORD* optional, out
);
<DllImport("cldapi.dll", ExactSpelling:=True)>
Public Shared Function CfGetPlaceholderRangeInfoForHydration(
    ConnectionKey As Long,   ' CF_CONNECTION_KEY
    TransferKey As Long,   ' LONGLONG
    FileId As Long,   ' LONGLONG
    InfoClass As Integer,   ' CF_PLACEHOLDER_RANGE_INFO_CLASS
    StartingOffset As Long,   ' LONGLONG
    RangeLength As Long,   ' LONGLONG
    InfoBuffer As IntPtr,   ' void* out
    InfoBufferSize As UInteger,   ' DWORD
    InfoBufferWritten As IntPtr   ' DWORD* optional, out
) As Integer
End Function
' ConnectionKey : CF_CONNECTION_KEY
' TransferKey : LONGLONG
' FileId : LONGLONG
' InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
' StartingOffset : LONGLONG
' RangeLength : LONGLONG
' InfoBuffer : void* out
' InfoBufferSize : DWORD
' InfoBufferWritten : DWORD* optional, out
Declare PtrSafe Function CfGetPlaceholderRangeInfoForHydration Lib "cldapi" ( _
    ByVal ConnectionKey As LongLong, _
    ByVal TransferKey As LongLong, _
    ByVal FileId As LongLong, _
    ByVal InfoClass As Long, _
    ByVal StartingOffset As LongLong, _
    ByVal RangeLength As LongLong, _
    ByVal InfoBuffer As LongPtr, _
    ByVal InfoBufferSize As Long, _
    ByVal InfoBufferWritten As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

CfGetPlaceholderRangeInfoForHydration = ctypes.windll.cldapi.CfGetPlaceholderRangeInfoForHydration
CfGetPlaceholderRangeInfoForHydration.restype = ctypes.c_int
CfGetPlaceholderRangeInfoForHydration.argtypes = [
    ctypes.c_longlong,  # ConnectionKey : CF_CONNECTION_KEY
    ctypes.c_longlong,  # TransferKey : LONGLONG
    ctypes.c_longlong,  # FileId : LONGLONG
    ctypes.c_int,  # InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
    ctypes.c_longlong,  # StartingOffset : LONGLONG
    ctypes.c_longlong,  # RangeLength : LONGLONG
    ctypes.POINTER(None),  # InfoBuffer : void* out
    wintypes.DWORD,  # InfoBufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # InfoBufferWritten : DWORD* optional, out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('cldapi.dll')
CfGetPlaceholderRangeInfoForHydration = Fiddle::Function.new(
  lib['CfGetPlaceholderRangeInfoForHydration'],
  [
    Fiddle::TYPE_LONG_LONG,  # ConnectionKey : CF_CONNECTION_KEY
    Fiddle::TYPE_LONG_LONG,  # TransferKey : LONGLONG
    Fiddle::TYPE_LONG_LONG,  # FileId : LONGLONG
    Fiddle::TYPE_INT,  # InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
    Fiddle::TYPE_LONG_LONG,  # StartingOffset : LONGLONG
    Fiddle::TYPE_LONG_LONG,  # RangeLength : LONGLONG
    Fiddle::TYPE_VOIDP,  # InfoBuffer : void* out
    -Fiddle::TYPE_INT,  # InfoBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # InfoBufferWritten : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
#[link(name = "cldapi")]
extern "system" {
    fn CfGetPlaceholderRangeInfoForHydration(
        ConnectionKey: i64,  // CF_CONNECTION_KEY
        TransferKey: i64,  // LONGLONG
        FileId: i64,  // LONGLONG
        InfoClass: i32,  // CF_PLACEHOLDER_RANGE_INFO_CLASS
        StartingOffset: i64,  // LONGLONG
        RangeLength: i64,  // LONGLONG
        InfoBuffer: *mut (),  // void* out
        InfoBufferSize: u32,  // DWORD
        InfoBufferWritten: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("cldapi.dll")]
public static extern int CfGetPlaceholderRangeInfoForHydration(long ConnectionKey, long TransferKey, long FileId, int InfoClass, long StartingOffset, long RangeLength, IntPtr InfoBuffer, uint InfoBufferSize, IntPtr InfoBufferWritten);
"@
$api = Add-Type -MemberDefinition $sig -Name 'cldapi_CfGetPlaceholderRangeInfoForHydration' -Namespace Win32 -PassThru
# $api::CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
#uselib "cldapi.dll"
#func global CfGetPlaceholderRangeInfoForHydration "CfGetPlaceholderRangeInfoForHydration" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CfGetPlaceholderRangeInfoForHydration ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, varptr(InfoBufferWritten)   ; 戻り値は stat
; ConnectionKey : CF_CONNECTION_KEY -> "sptr"
; TransferKey : LONGLONG -> "sptr"
; FileId : LONGLONG -> "sptr"
; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "sptr"
; StartingOffset : LONGLONG -> "sptr"
; RangeLength : LONGLONG -> "sptr"
; InfoBuffer : void* out -> "sptr"
; InfoBufferSize : DWORD -> "sptr"
; InfoBufferWritten : DWORD* optional, out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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。
出力引数: 
#uselib "cldapi.dll"
#cfunc global CfGetPlaceholderRangeInfoForHydration "CfGetPlaceholderRangeInfoForHydration" int64, int64, int64, int, int64, int64, sptr, int, var
; res = CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
; ConnectionKey : CF_CONNECTION_KEY -> "int64"
; TransferKey : LONGLONG -> "int64"
; FileId : LONGLONG -> "int64"
; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int"
; StartingOffset : LONGLONG -> "int64"
; RangeLength : LONGLONG -> "int64"
; InfoBuffer : void* out -> "sptr"
; InfoBufferSize : DWORD -> "int"
; InfoBufferWritten : DWORD* optional, out -> "var"
; ※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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。
出力引数: 
; HRESULT CfGetPlaceholderRangeInfoForHydration(CF_CONNECTION_KEY ConnectionKey, LONGLONG TransferKey, LONGLONG FileId, CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass, LONGLONG StartingOffset, LONGLONG RangeLength, void* InfoBuffer, DWORD InfoBufferSize, DWORD* InfoBufferWritten)
#uselib "cldapi.dll"
#cfunc global CfGetPlaceholderRangeInfoForHydration "CfGetPlaceholderRangeInfoForHydration" int64, int64, int64, int, int64, int64, intptr, int, var
; res = CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
; ConnectionKey : CF_CONNECTION_KEY -> "int64"
; TransferKey : LONGLONG -> "int64"
; FileId : LONGLONG -> "int64"
; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int"
; StartingOffset : LONGLONG -> "int64"
; RangeLength : LONGLONG -> "int64"
; InfoBuffer : void* out -> "intptr"
; InfoBufferSize : DWORD -> "int"
; InfoBufferWritten : DWORD* optional, out -> "var"
; ※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 (
	cldapi = windows.NewLazySystemDLL("cldapi.dll")
	procCfGetPlaceholderRangeInfoForHydration = cldapi.NewProc("CfGetPlaceholderRangeInfoForHydration")
)

// ConnectionKey (CF_CONNECTION_KEY), TransferKey (LONGLONG), FileId (LONGLONG), InfoClass (CF_PLACEHOLDER_RANGE_INFO_CLASS), StartingOffset (LONGLONG), RangeLength (LONGLONG), InfoBuffer (void* out), InfoBufferSize (DWORD), InfoBufferWritten (DWORD* optional, out)
r1, _, err := procCfGetPlaceholderRangeInfoForHydration.Call(
	uintptr(ConnectionKey),
	uintptr(TransferKey),
	uintptr(FileId),
	uintptr(InfoClass),
	uintptr(StartingOffset),
	uintptr(RangeLength),
	uintptr(InfoBuffer),
	uintptr(InfoBufferSize),
	uintptr(InfoBufferWritten),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function CfGetPlaceholderRangeInfoForHydration(
  ConnectionKey: Int64;   // CF_CONNECTION_KEY
  TransferKey: Int64;   // LONGLONG
  FileId: Int64;   // LONGLONG
  InfoClass: Integer;   // CF_PLACEHOLDER_RANGE_INFO_CLASS
  StartingOffset: Int64;   // LONGLONG
  RangeLength: Int64;   // LONGLONG
  InfoBuffer: Pointer;   // void* out
  InfoBufferSize: DWORD;   // DWORD
  InfoBufferWritten: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'cldapi.dll' name 'CfGetPlaceholderRangeInfoForHydration';
result := DllCall("cldapi\CfGetPlaceholderRangeInfoForHydration"
    , "Int64", ConnectionKey   ; CF_CONNECTION_KEY
    , "Int64", TransferKey   ; LONGLONG
    , "Int64", FileId   ; LONGLONG
    , "Int", InfoClass   ; CF_PLACEHOLDER_RANGE_INFO_CLASS
    , "Int64", StartingOffset   ; LONGLONG
    , "Int64", RangeLength   ; LONGLONG
    , "Ptr", InfoBuffer   ; void* out
    , "UInt", InfoBufferSize   ; DWORD
    , "Ptr", InfoBufferWritten   ; DWORD* optional, out
    , "Int")   ; return: HRESULT
●CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten) = DLL("cldapi.dll", "int CfGetPlaceholderRangeInfoForHydration(int64, int64, int64, int, int64, int64, void*, dword, void*)")
# 呼び出し: CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
# ConnectionKey : CF_CONNECTION_KEY -> "int64"
# TransferKey : LONGLONG -> "int64"
# FileId : LONGLONG -> "int64"
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int"
# StartingOffset : LONGLONG -> "int64"
# RangeLength : LONGLONG -> "int64"
# InfoBuffer : void* out -> "void*"
# InfoBufferSize : DWORD -> "dword"
# InfoBufferWritten : DWORD* optional, 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)。
const std = @import("std");

extern "cldapi" fn CfGetPlaceholderRangeInfoForHydration(
    ConnectionKey: i64, // CF_CONNECTION_KEY
    TransferKey: i64, // LONGLONG
    FileId: i64, // LONGLONG
    InfoClass: i32, // CF_PLACEHOLDER_RANGE_INFO_CLASS
    StartingOffset: i64, // LONGLONG
    RangeLength: i64, // LONGLONG
    InfoBuffer: ?*anyopaque, // void* out
    InfoBufferSize: u32, // DWORD
    InfoBufferWritten: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
proc CfGetPlaceholderRangeInfoForHydration(
    ConnectionKey: int64,  # CF_CONNECTION_KEY
    TransferKey: int64,  # LONGLONG
    FileId: int64,  # LONGLONG
    InfoClass: int32,  # CF_PLACEHOLDER_RANGE_INFO_CLASS
    StartingOffset: int64,  # LONGLONG
    RangeLength: int64,  # LONGLONG
    InfoBuffer: pointer,  # void* out
    InfoBufferSize: uint32,  # DWORD
    InfoBufferWritten: ptr uint32  # DWORD* optional, out
): int32 {.importc: "CfGetPlaceholderRangeInfoForHydration", stdcall, dynlib: "cldapi.dll".}
pragma(lib, "cldapi");
extern(Windows)
int CfGetPlaceholderRangeInfoForHydration(
    long ConnectionKey,   // CF_CONNECTION_KEY
    long TransferKey,   // LONGLONG
    long FileId,   // LONGLONG
    int InfoClass,   // CF_PLACEHOLDER_RANGE_INFO_CLASS
    long StartingOffset,   // LONGLONG
    long RangeLength,   // LONGLONG
    void* InfoBuffer,   // void* out
    uint InfoBufferSize,   // DWORD
    uint* InfoBufferWritten   // DWORD* optional, out
);
ccall((:CfGetPlaceholderRangeInfoForHydration, "cldapi.dll"), stdcall, Int32,
      (Int64, Int64, Int64, Int32, Int64, Int64, Ptr{Cvoid}, UInt32, Ptr{UInt32}),
      ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
# ConnectionKey : CF_CONNECTION_KEY -> Int64
# TransferKey : LONGLONG -> Int64
# FileId : LONGLONG -> Int64
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
# StartingOffset : LONGLONG -> Int64
# RangeLength : LONGLONG -> Int64
# InfoBuffer : void* out -> Ptr{Cvoid}
# InfoBufferSize : DWORD -> UInt32
# InfoBufferWritten : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t CfGetPlaceholderRangeInfoForHydration(
    int64_t ConnectionKey,
    int64_t TransferKey,
    int64_t FileId,
    int32_t InfoClass,
    int64_t StartingOffset,
    int64_t RangeLength,
    void* InfoBuffer,
    uint32_t InfoBufferSize,
    uint32_t* InfoBufferWritten);
]]
local cldapi = ffi.load("cldapi")
-- cldapi.CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
-- ConnectionKey : CF_CONNECTION_KEY
-- TransferKey : LONGLONG
-- FileId : LONGLONG
-- InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
-- StartingOffset : LONGLONG
-- RangeLength : LONGLONG
-- InfoBuffer : void* out
-- InfoBufferSize : DWORD
-- InfoBufferWritten : DWORD* optional, out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('cldapi.dll');
const CfGetPlaceholderRangeInfoForHydration = lib.func('__stdcall', 'CfGetPlaceholderRangeInfoForHydration', 'int32_t', ['int64_t', 'int64_t', 'int64_t', 'int32_t', 'int64_t', 'int64_t', 'void *', 'uint32_t', 'uint32_t *']);
// CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
// ConnectionKey : CF_CONNECTION_KEY -> 'int64_t'
// TransferKey : LONGLONG -> 'int64_t'
// FileId : LONGLONG -> 'int64_t'
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> 'int32_t'
// StartingOffset : LONGLONG -> 'int64_t'
// RangeLength : LONGLONG -> 'int64_t'
// InfoBuffer : void* out -> 'void *'
// InfoBufferSize : DWORD -> 'uint32_t'
// InfoBufferWritten : DWORD* optional, out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("cldapi.dll", {
  CfGetPlaceholderRangeInfoForHydration: { parameters: ["i64", "i64", "i64", "i32", "i64", "i64", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten)
// ConnectionKey : CF_CONNECTION_KEY -> "i64"
// TransferKey : LONGLONG -> "i64"
// FileId : LONGLONG -> "i64"
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "i32"
// StartingOffset : LONGLONG -> "i64"
// RangeLength : LONGLONG -> "i64"
// InfoBuffer : void* out -> "pointer"
// InfoBufferSize : DWORD -> "u32"
// InfoBufferWritten : DWORD* optional, out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t CfGetPlaceholderRangeInfoForHydration(
    int64_t ConnectionKey,
    int64_t TransferKey,
    int64_t FileId,
    int32_t InfoClass,
    int64_t StartingOffset,
    int64_t RangeLength,
    void* InfoBuffer,
    uint32_t InfoBufferSize,
    uint32_t* InfoBufferWritten);
C, "cldapi.dll");
// $ffi->CfGetPlaceholderRangeInfoForHydration(ConnectionKey, TransferKey, FileId, InfoClass, StartingOffset, RangeLength, InfoBuffer, InfoBufferSize, InfoBufferWritten);
// ConnectionKey : CF_CONNECTION_KEY
// TransferKey : LONGLONG
// FileId : LONGLONG
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
// StartingOffset : LONGLONG
// RangeLength : LONGLONG
// InfoBuffer : void* out
// InfoBufferSize : DWORD
// InfoBufferWritten : DWORD* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Cldapi extends StdCallLibrary {
    Cldapi INSTANCE = Native.load("cldapi", Cldapi.class);
    int CfGetPlaceholderRangeInfoForHydration(
        long ConnectionKey,   // CF_CONNECTION_KEY
        long TransferKey,   // LONGLONG
        long FileId,   // LONGLONG
        int InfoClass,   // CF_PLACEHOLDER_RANGE_INFO_CLASS
        long StartingOffset,   // LONGLONG
        long RangeLength,   // LONGLONG
        Pointer InfoBuffer,   // void* out
        int InfoBufferSize,   // DWORD
        IntByReference InfoBufferWritten   // DWORD* optional, out
    );
}
@[Link("cldapi")]
lib Libcldapi
  fun CfGetPlaceholderRangeInfoForHydration = CfGetPlaceholderRangeInfoForHydration(
    ConnectionKey : Int64,   # CF_CONNECTION_KEY
    TransferKey : Int64,   # LONGLONG
    FileId : Int64,   # LONGLONG
    InfoClass : Int32,   # CF_PLACEHOLDER_RANGE_INFO_CLASS
    StartingOffset : Int64,   # LONGLONG
    RangeLength : Int64,   # LONGLONG
    InfoBuffer : Void*,   # void* out
    InfoBufferSize : UInt32,   # DWORD
    InfoBufferWritten : UInt32*   # DWORD* optional, out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef CfGetPlaceholderRangeInfoForHydrationNative = Int32 Function(Int64, Int64, Int64, Int32, Int64, Int64, Pointer<Void>, Uint32, Pointer<Uint32>);
typedef CfGetPlaceholderRangeInfoForHydrationDart = int Function(int, int, int, int, int, int, Pointer<Void>, int, Pointer<Uint32>);
final CfGetPlaceholderRangeInfoForHydration = DynamicLibrary.open('cldapi.dll')
    .lookupFunction<CfGetPlaceholderRangeInfoForHydrationNative, CfGetPlaceholderRangeInfoForHydrationDart>('CfGetPlaceholderRangeInfoForHydration');
// ConnectionKey : CF_CONNECTION_KEY -> Int64
// TransferKey : LONGLONG -> Int64
// FileId : LONGLONG -> Int64
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
// StartingOffset : LONGLONG -> Int64
// RangeLength : LONGLONG -> Int64
// InfoBuffer : void* out -> Pointer<Void>
// InfoBufferSize : DWORD -> Uint32
// InfoBufferWritten : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function CfGetPlaceholderRangeInfoForHydration(
  ConnectionKey: Int64;   // CF_CONNECTION_KEY
  TransferKey: Int64;   // LONGLONG
  FileId: Int64;   // LONGLONG
  InfoClass: Integer;   // CF_PLACEHOLDER_RANGE_INFO_CLASS
  StartingOffset: Int64;   // LONGLONG
  RangeLength: Int64;   // LONGLONG
  InfoBuffer: Pointer;   // void* out
  InfoBufferSize: DWORD;   // DWORD
  InfoBufferWritten: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'cldapi.dll' name 'CfGetPlaceholderRangeInfoForHydration';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "CfGetPlaceholderRangeInfoForHydration"
  c_CfGetPlaceholderRangeInfoForHydration :: Int64 -> Int64 -> Int64 -> Int32 -> Int64 -> Int64 -> Ptr () -> Word32 -> Ptr Word32 -> IO Int32
-- ConnectionKey : CF_CONNECTION_KEY -> Int64
-- TransferKey : LONGLONG -> Int64
-- FileId : LONGLONG -> Int64
-- InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
-- StartingOffset : LONGLONG -> Int64
-- RangeLength : LONGLONG -> Int64
-- InfoBuffer : void* out -> Ptr ()
-- InfoBufferSize : DWORD -> Word32
-- InfoBufferWritten : DWORD* optional, out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let cfgetplaceholderrangeinfoforhydration =
  foreign "CfGetPlaceholderRangeInfoForHydration"
    (int64_t @-> int64_t @-> int64_t @-> int32_t @-> int64_t @-> int64_t @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* ConnectionKey : CF_CONNECTION_KEY -> int64_t *)
(* TransferKey : LONGLONG -> int64_t *)
(* FileId : LONGLONG -> int64_t *)
(* InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> int32_t *)
(* StartingOffset : LONGLONG -> int64_t *)
(* RangeLength : LONGLONG -> int64_t *)
(* InfoBuffer : void* out -> (ptr void) *)
(* InfoBufferSize : DWORD -> uint32_t *)
(* InfoBufferWritten : DWORD* optional, out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library cldapi (t "cldapi.dll"))
(cffi:use-foreign-library cldapi)

(cffi:defcfun ("CfGetPlaceholderRangeInfoForHydration" cf-get-placeholder-range-info-for-hydration :convention :stdcall) :int32
  (connection-key :int64)   ; CF_CONNECTION_KEY
  (transfer-key :int64)   ; LONGLONG
  (file-id :int64)   ; LONGLONG
  (info-class :int32)   ; CF_PLACEHOLDER_RANGE_INFO_CLASS
  (starting-offset :int64)   ; LONGLONG
  (range-length :int64)   ; LONGLONG
  (info-buffer :pointer)   ; void* out
  (info-buffer-size :uint32)   ; DWORD
  (info-buffer-written :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $CfGetPlaceholderRangeInfoForHydration = Win32::API::More->new('cldapi',
    'int CfGetPlaceholderRangeInfoForHydration(INT64 ConnectionKey, INT64 TransferKey, INT64 FileId, int InfoClass, INT64 StartingOffset, INT64 RangeLength, LPVOID InfoBuffer, DWORD InfoBufferSize, LPVOID InfoBufferWritten)');
# my $ret = $CfGetPlaceholderRangeInfoForHydration->Call($ConnectionKey, $TransferKey, $FileId, $InfoClass, $StartingOffset, $RangeLength, $InfoBuffer, $InfoBufferSize, $InfoBufferWritten);
# ConnectionKey : CF_CONNECTION_KEY -> INT64
# TransferKey : LONGLONG -> INT64
# FileId : LONGLONG -> INT64
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> int
# StartingOffset : LONGLONG -> INT64
# RangeLength : LONGLONG -> INT64
# InfoBuffer : void* out -> LPVOID
# InfoBufferSize : DWORD -> DWORD
# InfoBufferWritten : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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