UrlCacheReadEntryStream

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

DWORD UrlCacheReadEntryStream(
    void* hUrlCacheStream,
    ULONGLONG ullLocation,
    void* pBuffer,
    DWORD dwBufferLen,
    DWORD* pdwBufferLen
);

<DllImport("WININET.dll", ExactSpelling:=True)>
Public Shared Function UrlCacheReadEntryStream(
    hUrlCacheStream As IntPtr,   ' void*
    ullLocation As ULong,   ' ULONGLONG
    pBuffer As IntPtr,   ' void* in/out
    dwBufferLen As UInteger,   ' DWORD
    <Out> ByRef pdwBufferLen As UInteger   ' DWORD* out
) As UInteger
End Function

' hUrlCacheStream : void*
' ullLocation : ULONGLONG
' pBuffer : void* in/out
' dwBufferLen : DWORD
' pdwBufferLen : DWORD* out
Declare PtrSafe Function UrlCacheReadEntryStream Lib "wininet" ( _
    ByVal hUrlCacheStream As LongPtr, _
    ByVal ullLocation As LongLong, _
    ByVal pBuffer As LongPtr, _
    ByVal dwBufferLen As Long, _
    ByRef pdwBufferLen 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

UrlCacheReadEntryStream = ctypes.windll.wininet.UrlCacheReadEntryStream
UrlCacheReadEntryStream.restype = wintypes.DWORD
UrlCacheReadEntryStream.argtypes = [
    ctypes.POINTER(None),  # hUrlCacheStream : void*
    ctypes.c_ulonglong,  # ullLocation : ULONGLONG
    ctypes.POINTER(None),  # pBuffer : void* in/out
    wintypes.DWORD,  # dwBufferLen : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pdwBufferLen : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
UrlCacheReadEntryStream = Fiddle::Function.new(
  lib['UrlCacheReadEntryStream'],
  [
    Fiddle::TYPE_VOIDP,  # hUrlCacheStream : void*
    -Fiddle::TYPE_LONG_LONG,  # ullLocation : ULONGLONG
    Fiddle::TYPE_VOIDP,  # pBuffer : void* in/out
    -Fiddle::TYPE_INT,  # dwBufferLen : DWORD
    Fiddle::TYPE_VOIDP,  # pdwBufferLen : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wininet")]
extern "system" {
    fn UrlCacheReadEntryStream(
        hUrlCacheStream: *mut (),  // void*
        ullLocation: u64,  // ULONGLONG
        pBuffer: *mut (),  // void* in/out
        dwBufferLen: u32,  // DWORD
        pdwBufferLen: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WININET.dll")]
public static extern uint UrlCacheReadEntryStream(IntPtr hUrlCacheStream, ulong ullLocation, IntPtr pBuffer, uint dwBufferLen, out uint pdwBufferLen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_UrlCacheReadEntryStream' -Namespace Win32 -PassThru
# $api::UrlCacheReadEntryStream(hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, pdwBufferLen)

#uselib "WININET.dll"
#func global UrlCacheReadEntryStream "UrlCacheReadEntryStream" sptr, sptr, sptr, sptr, sptr
; UrlCacheReadEntryStream hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, varptr(pdwBufferLen)   ; 戻り値は stat
; hUrlCacheStream : void* -> "sptr"
; ullLocation : ULONGLONG -> "sptr"
; pBuffer : void* in/out -> "sptr"
; dwBufferLen : DWORD -> "sptr"
; pdwBufferLen : DWORD* 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。

#uselib "WININET.dll"
#cfunc global UrlCacheReadEntryStream "UrlCacheReadEntryStream" sptr, int64, sptr, int, var
; res = UrlCacheReadEntryStream(hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, pdwBufferLen)
; hUrlCacheStream : void* -> "sptr"
; ullLocation : ULONGLONG -> "int64"
; pBuffer : void* in/out -> "sptr"
; dwBufferLen : DWORD -> "int"
; pdwBufferLen : DWORD* 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)。

; DWORD UrlCacheReadEntryStream(void* hUrlCacheStream, ULONGLONG ullLocation, void* pBuffer, DWORD dwBufferLen, DWORD* pdwBufferLen)
#uselib "WININET.dll"
#cfunc global UrlCacheReadEntryStream "UrlCacheReadEntryStream" intptr, int64, intptr, int, var
; res = UrlCacheReadEntryStream(hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, pdwBufferLen)
; hUrlCacheStream : void* -> "intptr"
; ullLocation : ULONGLONG -> "int64"
; pBuffer : void* in/out -> "intptr"
; dwBufferLen : DWORD -> "int"
; pdwBufferLen : DWORD* 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 (
	wininet = windows.NewLazySystemDLL("WININET.dll")
	procUrlCacheReadEntryStream = wininet.NewProc("UrlCacheReadEntryStream")
)

// hUrlCacheStream (void*), ullLocation (ULONGLONG), pBuffer (void* in/out), dwBufferLen (DWORD), pdwBufferLen (DWORD* out)
r1, _, err := procUrlCacheReadEntryStream.Call(
	uintptr(hUrlCacheStream),
	uintptr(ullLocation),
	uintptr(pBuffer),
	uintptr(dwBufferLen),
	uintptr(pdwBufferLen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function UrlCacheReadEntryStream(
  hUrlCacheStream: Pointer;   // void*
  ullLocation: UInt64;   // ULONGLONG
  pBuffer: Pointer;   // void* in/out
  dwBufferLen: DWORD;   // DWORD
  pdwBufferLen: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WININET.dll' name 'UrlCacheReadEntryStream';

result := DllCall("WININET\UrlCacheReadEntryStream"
    , "Ptr", hUrlCacheStream   ; void*
    , "Int64", ullLocation   ; ULONGLONG
    , "Ptr", pBuffer   ; void* in/out
    , "UInt", dwBufferLen   ; DWORD
    , "Ptr", pdwBufferLen   ; DWORD* out
    , "UInt")   ; return: DWORD

●UrlCacheReadEntryStream(hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, pdwBufferLen) = DLL("WININET.dll", "dword UrlCacheReadEntryStream(void*, qword, void*, dword, void*)")
# 呼び出し: UrlCacheReadEntryStream(hUrlCacheStream, ullLocation, pBuffer, dwBufferLen, pdwBufferLen)
# hUrlCacheStream : void* -> "void*"
# ullLocation : ULONGLONG -> "qword"
# pBuffer : void* in/out -> "void*"
# dwBufferLen : DWORD -> "dword"
# pdwBufferLen : DWORD* 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)。