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CfGetPlaceholderRangeInfo
関数プレースホルダーの指定範囲の情報を取得する。
シグネチャ
// cldapi.dll
#include <windows.h>
HRESULT CfGetPlaceholderRangeInfo(
HANDLE FileHandle,
CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass,
LONGLONG StartingOffset,
LONGLONG Length,
void* InfoBuffer,
DWORD InfoBufferLength,
DWORD* ReturnedLength // optional
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| FileHandle | HANDLE | in | 範囲情報を取得する対象プレースホルダーファイルのハンドル。 |
| InfoClass | CF_PLACEHOLDER_RANGE_INFO_CLASS | in | 取得する範囲情報の種別を示すCF_PLACEHOLDER_RANGE_INFO_CLASS列挙値。 |
| StartingOffset | LONGLONG | in | 問い合わせる範囲の開始バイトオフセット。 |
| Length | LONGLONG | in | 問い合わせる範囲のバイト長。 |
| InfoBuffer | void* | 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。 |
| InfoBufferLength | DWORD | in | InfoBufferのバイト単位のサイズ。 |
| ReturnedLength | DWORD* | 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。NULL可。 |
戻り値の型: HRESULT
各言語での呼び出し定義
// cldapi.dll
#include <windows.h>
HRESULT CfGetPlaceholderRangeInfo(
HANDLE FileHandle,
CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass,
LONGLONG StartingOffset,
LONGLONG Length,
void* InfoBuffer,
DWORD InfoBufferLength,
DWORD* ReturnedLength // optional
);[DllImport("cldapi.dll", ExactSpelling = true)]
static extern int CfGetPlaceholderRangeInfo(
IntPtr FileHandle, // HANDLE
int InfoClass, // CF_PLACEHOLDER_RANGE_INFO_CLASS
long StartingOffset, // LONGLONG
long Length, // LONGLONG
IntPtr InfoBuffer, // void* out
uint InfoBufferLength, // DWORD
IntPtr ReturnedLength // DWORD* optional, out
);<DllImport("cldapi.dll", ExactSpelling:=True)>
Public Shared Function CfGetPlaceholderRangeInfo(
FileHandle As IntPtr, ' HANDLE
InfoClass As Integer, ' CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset As Long, ' LONGLONG
Length As Long, ' LONGLONG
InfoBuffer As IntPtr, ' void* out
InfoBufferLength As UInteger, ' DWORD
ReturnedLength As IntPtr ' DWORD* optional, out
) As Integer
End Function' FileHandle : HANDLE
' InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
' StartingOffset : LONGLONG
' Length : LONGLONG
' InfoBuffer : void* out
' InfoBufferLength : DWORD
' ReturnedLength : DWORD* optional, out
Declare PtrSafe Function CfGetPlaceholderRangeInfo Lib "cldapi" ( _
ByVal FileHandle As LongPtr, _
ByVal InfoClass As Long, _
ByVal StartingOffset As LongLong, _
ByVal Length As LongLong, _
ByVal InfoBuffer As LongPtr, _
ByVal InfoBufferLength As Long, _
ByVal ReturnedLength 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
CfGetPlaceholderRangeInfo = ctypes.windll.cldapi.CfGetPlaceholderRangeInfo
CfGetPlaceholderRangeInfo.restype = ctypes.c_int
CfGetPlaceholderRangeInfo.argtypes = [
wintypes.HANDLE, # FileHandle : HANDLE
ctypes.c_int, # InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
ctypes.c_longlong, # StartingOffset : LONGLONG
ctypes.c_longlong, # Length : LONGLONG
ctypes.POINTER(None), # InfoBuffer : void* out
wintypes.DWORD, # InfoBufferLength : DWORD
ctypes.POINTER(wintypes.DWORD), # ReturnedLength : DWORD* optional, out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('cldapi.dll')
CfGetPlaceholderRangeInfo = Fiddle::Function.new(
lib['CfGetPlaceholderRangeInfo'],
[
Fiddle::TYPE_VOIDP, # FileHandle : HANDLE
Fiddle::TYPE_INT, # InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
Fiddle::TYPE_LONG_LONG, # StartingOffset : LONGLONG
Fiddle::TYPE_LONG_LONG, # Length : LONGLONG
Fiddle::TYPE_VOIDP, # InfoBuffer : void* out
-Fiddle::TYPE_INT, # InfoBufferLength : DWORD
Fiddle::TYPE_VOIDP, # ReturnedLength : DWORD* optional, out
],
Fiddle::TYPE_INT)#[link(name = "cldapi")]
extern "system" {
fn CfGetPlaceholderRangeInfo(
FileHandle: *mut core::ffi::c_void, // HANDLE
InfoClass: i32, // CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset: i64, // LONGLONG
Length: i64, // LONGLONG
InfoBuffer: *mut (), // void* out
InfoBufferLength: u32, // DWORD
ReturnedLength: *mut u32 // DWORD* optional, out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("cldapi.dll")]
public static extern int CfGetPlaceholderRangeInfo(IntPtr FileHandle, int InfoClass, long StartingOffset, long Length, IntPtr InfoBuffer, uint InfoBufferLength, IntPtr ReturnedLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'cldapi_CfGetPlaceholderRangeInfo' -Namespace Win32 -PassThru
# $api::CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)#uselib "cldapi.dll"
#func global CfGetPlaceholderRangeInfo "CfGetPlaceholderRangeInfo" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CfGetPlaceholderRangeInfo FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, varptr(ReturnedLength) ; 戻り値は stat
; FileHandle : HANDLE -> "sptr"
; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "sptr"
; StartingOffset : LONGLONG -> "sptr"
; Length : LONGLONG -> "sptr"
; InfoBuffer : void* out -> "sptr"
; InfoBufferLength : DWORD -> "sptr"
; ReturnedLength : 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 CfGetPlaceholderRangeInfo "CfGetPlaceholderRangeInfo" sptr, int, int64, int64, sptr, int, var ; res = CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength) ; FileHandle : HANDLE -> "sptr" ; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int" ; StartingOffset : LONGLONG -> "int64" ; Length : LONGLONG -> "int64" ; InfoBuffer : void* out -> "sptr" ; InfoBufferLength : DWORD -> "int" ; ReturnedLength : 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)。#uselib "cldapi.dll" #cfunc global CfGetPlaceholderRangeInfo "CfGetPlaceholderRangeInfo" sptr, int, int64, int64, sptr, int, sptr ; res = CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, varptr(ReturnedLength)) ; FileHandle : HANDLE -> "sptr" ; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int" ; StartingOffset : LONGLONG -> "int64" ; Length : LONGLONG -> "int64" ; InfoBuffer : void* out -> "sptr" ; InfoBufferLength : DWORD -> "int" ; ReturnedLength : DWORD* optional, out -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。 ; ※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 CfGetPlaceholderRangeInfo(HANDLE FileHandle, CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass, LONGLONG StartingOffset, LONGLONG Length, void* InfoBuffer, DWORD InfoBufferLength, DWORD* ReturnedLength) #uselib "cldapi.dll" #cfunc global CfGetPlaceholderRangeInfo "CfGetPlaceholderRangeInfo" intptr, int, int64, int64, intptr, int, var ; res = CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength) ; FileHandle : HANDLE -> "intptr" ; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int" ; StartingOffset : LONGLONG -> "int64" ; Length : LONGLONG -> "int64" ; InfoBuffer : void* out -> "intptr" ; InfoBufferLength : DWORD -> "int" ; ReturnedLength : 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。; HRESULT CfGetPlaceholderRangeInfo(HANDLE FileHandle, CF_PLACEHOLDER_RANGE_INFO_CLASS InfoClass, LONGLONG StartingOffset, LONGLONG Length, void* InfoBuffer, DWORD InfoBufferLength, DWORD* ReturnedLength) #uselib "cldapi.dll" #cfunc global CfGetPlaceholderRangeInfo "CfGetPlaceholderRangeInfo" intptr, int, int64, int64, intptr, int, intptr ; res = CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, varptr(ReturnedLength)) ; FileHandle : HANDLE -> "intptr" ; InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int" ; StartingOffset : LONGLONG -> "int64" ; Length : LONGLONG -> "int64" ; InfoBuffer : void* out -> "intptr" ; InfoBufferLength : DWORD -> "int" ; ReturnedLength : DWORD* optional, out -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
cldapi = windows.NewLazySystemDLL("cldapi.dll")
procCfGetPlaceholderRangeInfo = cldapi.NewProc("CfGetPlaceholderRangeInfo")
)
// FileHandle (HANDLE), InfoClass (CF_PLACEHOLDER_RANGE_INFO_CLASS), StartingOffset (LONGLONG), Length (LONGLONG), InfoBuffer (void* out), InfoBufferLength (DWORD), ReturnedLength (DWORD* optional, out)
r1, _, err := procCfGetPlaceholderRangeInfo.Call(
uintptr(FileHandle),
uintptr(InfoClass),
uintptr(StartingOffset),
uintptr(Length),
uintptr(InfoBuffer),
uintptr(InfoBufferLength),
uintptr(ReturnedLength),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // HRESULTfunction CfGetPlaceholderRangeInfo(
FileHandle: THandle; // HANDLE
InfoClass: Integer; // CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset: Int64; // LONGLONG
Length: Int64; // LONGLONG
InfoBuffer: Pointer; // void* out
InfoBufferLength: DWORD; // DWORD
ReturnedLength: Pointer // DWORD* optional, out
): Integer; stdcall;
external 'cldapi.dll' name 'CfGetPlaceholderRangeInfo';result := DllCall("cldapi\CfGetPlaceholderRangeInfo"
, "Ptr", FileHandle ; HANDLE
, "Int", InfoClass ; CF_PLACEHOLDER_RANGE_INFO_CLASS
, "Int64", StartingOffset ; LONGLONG
, "Int64", Length ; LONGLONG
, "Ptr", InfoBuffer ; void* out
, "UInt", InfoBufferLength ; DWORD
, "Ptr", ReturnedLength ; DWORD* optional, out
, "Int") ; return: HRESULT●CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength) = DLL("cldapi.dll", "int CfGetPlaceholderRangeInfo(void*, int, int64, int64, void*, dword, void*)")
# 呼び出し: CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)
# FileHandle : HANDLE -> "void*"
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "int"
# StartingOffset : LONGLONG -> "int64"
# Length : LONGLONG -> "int64"
# InfoBuffer : void* out -> "void*"
# InfoBufferLength : DWORD -> "dword"
# ReturnedLength : 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 CfGetPlaceholderRangeInfo(
FileHandle: ?*anyopaque, // HANDLE
InfoClass: i32, // CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset: i64, // LONGLONG
Length: i64, // LONGLONG
InfoBuffer: ?*anyopaque, // void* out
InfoBufferLength: u32, // DWORD
ReturnedLength: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;proc CfGetPlaceholderRangeInfo(
FileHandle: pointer, # HANDLE
InfoClass: int32, # CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset: int64, # LONGLONG
Length: int64, # LONGLONG
InfoBuffer: pointer, # void* out
InfoBufferLength: uint32, # DWORD
ReturnedLength: ptr uint32 # DWORD* optional, out
): int32 {.importc: "CfGetPlaceholderRangeInfo", stdcall, dynlib: "cldapi.dll".}pragma(lib, "cldapi");
extern(Windows)
int CfGetPlaceholderRangeInfo(
void* FileHandle, // HANDLE
int InfoClass, // CF_PLACEHOLDER_RANGE_INFO_CLASS
long StartingOffset, // LONGLONG
long Length, // LONGLONG
void* InfoBuffer, // void* out
uint InfoBufferLength, // DWORD
uint* ReturnedLength // DWORD* optional, out
);ccall((:CfGetPlaceholderRangeInfo, "cldapi.dll"), stdcall, Int32,
(Ptr{Cvoid}, Int32, Int64, Int64, Ptr{Cvoid}, UInt32, Ptr{UInt32}),
FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)
# FileHandle : HANDLE -> Ptr{Cvoid}
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
# StartingOffset : LONGLONG -> Int64
# Length : LONGLONG -> Int64
# InfoBuffer : void* out -> Ptr{Cvoid}
# InfoBufferLength : DWORD -> UInt32
# ReturnedLength : 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 CfGetPlaceholderRangeInfo(
void* FileHandle,
int32_t InfoClass,
int64_t StartingOffset,
int64_t Length,
void* InfoBuffer,
uint32_t InfoBufferLength,
uint32_t* ReturnedLength);
]]
local cldapi = ffi.load("cldapi")
-- cldapi.CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)
-- FileHandle : HANDLE
-- InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
-- StartingOffset : LONGLONG
-- Length : LONGLONG
-- InfoBuffer : void* out
-- InfoBufferLength : DWORD
-- ReturnedLength : 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 CfGetPlaceholderRangeInfo = lib.func('__stdcall', 'CfGetPlaceholderRangeInfo', 'int32_t', ['void *', 'int32_t', 'int64_t', 'int64_t', 'void *', 'uint32_t', 'uint32_t *']);
// CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)
// FileHandle : HANDLE -> 'void *'
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> 'int32_t'
// StartingOffset : LONGLONG -> 'int64_t'
// Length : LONGLONG -> 'int64_t'
// InfoBuffer : void* out -> 'void *'
// InfoBufferLength : DWORD -> 'uint32_t'
// ReturnedLength : 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", {
CfGetPlaceholderRangeInfo: { parameters: ["pointer", "i32", "i64", "i64", "pointer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength)
// FileHandle : HANDLE -> "pointer"
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> "i32"
// StartingOffset : LONGLONG -> "i64"
// Length : LONGLONG -> "i64"
// InfoBuffer : void* out -> "pointer"
// InfoBufferLength : DWORD -> "u32"
// ReturnedLength : 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 CfGetPlaceholderRangeInfo(
void* FileHandle,
int32_t InfoClass,
int64_t StartingOffset,
int64_t Length,
void* InfoBuffer,
uint32_t InfoBufferLength,
uint32_t* ReturnedLength);
C, "cldapi.dll");
// $ffi->CfGetPlaceholderRangeInfo(FileHandle, InfoClass, StartingOffset, Length, InfoBuffer, InfoBufferLength, ReturnedLength);
// FileHandle : HANDLE
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS
// StartingOffset : LONGLONG
// Length : LONGLONG
// InfoBuffer : void* out
// InfoBufferLength : DWORD
// ReturnedLength : 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 CfGetPlaceholderRangeInfo(
Pointer FileHandle, // HANDLE
int InfoClass, // CF_PLACEHOLDER_RANGE_INFO_CLASS
long StartingOffset, // LONGLONG
long Length, // LONGLONG
Pointer InfoBuffer, // void* out
int InfoBufferLength, // DWORD
IntByReference ReturnedLength // DWORD* optional, out
);
}@[Link("cldapi")]
lib Libcldapi
fun CfGetPlaceholderRangeInfo = CfGetPlaceholderRangeInfo(
FileHandle : Void*, # HANDLE
InfoClass : Int32, # CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset : Int64, # LONGLONG
Length : Int64, # LONGLONG
InfoBuffer : Void*, # void* out
InfoBufferLength : UInt32, # DWORD
ReturnedLength : 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 CfGetPlaceholderRangeInfoNative = Int32 Function(Pointer<Void>, Int32, Int64, Int64, Pointer<Void>, Uint32, Pointer<Uint32>);
typedef CfGetPlaceholderRangeInfoDart = int Function(Pointer<Void>, int, int, int, Pointer<Void>, int, Pointer<Uint32>);
final CfGetPlaceholderRangeInfo = DynamicLibrary.open('cldapi.dll')
.lookupFunction<CfGetPlaceholderRangeInfoNative, CfGetPlaceholderRangeInfoDart>('CfGetPlaceholderRangeInfo');
// FileHandle : HANDLE -> Pointer<Void>
// InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
// StartingOffset : LONGLONG -> Int64
// Length : LONGLONG -> Int64
// InfoBuffer : void* out -> Pointer<Void>
// InfoBufferLength : DWORD -> Uint32
// ReturnedLength : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function CfGetPlaceholderRangeInfo(
FileHandle: THandle; // HANDLE
InfoClass: Integer; // CF_PLACEHOLDER_RANGE_INFO_CLASS
StartingOffset: Int64; // LONGLONG
Length: Int64; // LONGLONG
InfoBuffer: Pointer; // void* out
InfoBufferLength: DWORD; // DWORD
ReturnedLength: Pointer // DWORD* optional, out
): Integer; stdcall;
external 'cldapi.dll' name 'CfGetPlaceholderRangeInfo';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "CfGetPlaceholderRangeInfo"
c_CfGetPlaceholderRangeInfo :: Ptr () -> Int32 -> Int64 -> Int64 -> Ptr () -> Word32 -> Ptr Word32 -> IO Int32
-- FileHandle : HANDLE -> Ptr ()
-- InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> Int32
-- StartingOffset : LONGLONG -> Int64
-- Length : LONGLONG -> Int64
-- InfoBuffer : void* out -> Ptr ()
-- InfoBufferLength : DWORD -> Word32
-- ReturnedLength : 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 cfgetplaceholderrangeinfo =
foreign "CfGetPlaceholderRangeInfo"
((ptr void) @-> int32_t @-> int64_t @-> int64_t @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* FileHandle : HANDLE -> (ptr void) *)
(* InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> int32_t *)
(* StartingOffset : LONGLONG -> int64_t *)
(* Length : LONGLONG -> int64_t *)
(* InfoBuffer : void* out -> (ptr void) *)
(* InfoBufferLength : DWORD -> uint32_t *)
(* ReturnedLength : 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 ("CfGetPlaceholderRangeInfo" cf-get-placeholder-range-info :convention :stdcall) :int32
(file-handle :pointer) ; HANDLE
(info-class :int32) ; CF_PLACEHOLDER_RANGE_INFO_CLASS
(starting-offset :int64) ; LONGLONG
(length :int64) ; LONGLONG
(info-buffer :pointer) ; void* out
(info-buffer-length :uint32) ; DWORD
(returned-length :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 $CfGetPlaceholderRangeInfo = Win32::API::More->new('cldapi',
'int CfGetPlaceholderRangeInfo(HANDLE FileHandle, int InfoClass, INT64 StartingOffset, INT64 Length, LPVOID InfoBuffer, DWORD InfoBufferLength, LPVOID ReturnedLength)');
# my $ret = $CfGetPlaceholderRangeInfo->Call($FileHandle, $InfoClass, $StartingOffset, $Length, $InfoBuffer, $InfoBufferLength, $ReturnedLength);
# FileHandle : HANDLE -> HANDLE
# InfoClass : CF_PLACEHOLDER_RANGE_INFO_CLASS -> int
# StartingOffset : LONGLONG -> INT64
# Length : LONGLONG -> INT64
# InfoBuffer : void* out -> LPVOID
# InfoBufferLength : DWORD -> DWORD
# ReturnedLength : 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。