GetDeltaSignatureA

// msdelta.dll  (ANSI / -A)
#include <windows.h>

BOOL GetDeltaSignatureA(
    LONGLONG FileTypeSet,
    ALG_ID HashAlgId,
    LPCSTR lpSourceName,
    DELTA_HASH* lpHash
);

<DllImport("msdelta.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function GetDeltaSignatureA(
    FileTypeSet As Long,   ' LONGLONG
    HashAlgId As UInteger,   ' ALG_ID
    <MarshalAs(UnmanagedType.LPStr)> lpSourceName As String,   ' LPCSTR
    lpHash As IntPtr   ' DELTA_HASH* out
) As Boolean
End Function

' FileTypeSet : LONGLONG
' HashAlgId : ALG_ID
' lpSourceName : LPCSTR
' lpHash : DELTA_HASH* out
Declare PtrSafe Function GetDeltaSignatureA Lib "msdelta" ( _
    ByVal FileTypeSet As LongLong, _
    ByVal HashAlgId As Long, _
    ByVal lpSourceName As String, _
    ByVal lpHash 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

GetDeltaSignatureA = ctypes.windll.msdelta.GetDeltaSignatureA
GetDeltaSignatureA.restype = wintypes.BOOL
GetDeltaSignatureA.argtypes = [
    ctypes.c_longlong,  # FileTypeSet : LONGLONG
    wintypes.DWORD,  # HashAlgId : ALG_ID
    wintypes.LPCSTR,  # lpSourceName : LPCSTR
    ctypes.c_void_p,  # lpHash : DELTA_HASH* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdelta.dll')
GetDeltaSignatureA = Fiddle::Function.new(
  lib['GetDeltaSignatureA'],
  [
    Fiddle::TYPE_LONG_LONG,  # FileTypeSet : LONGLONG
    -Fiddle::TYPE_INT,  # HashAlgId : ALG_ID
    Fiddle::TYPE_VOIDP,  # lpSourceName : LPCSTR
    Fiddle::TYPE_VOIDP,  # lpHash : DELTA_HASH* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdelta")]
extern "system" {
    fn GetDeltaSignatureA(
        FileTypeSet: i64,  // LONGLONG
        HashAlgId: u32,  // ALG_ID
        lpSourceName: *const u8,  // LPCSTR
        lpHash: *mut DELTA_HASH  // DELTA_HASH* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll", CharSet = CharSet.Ansi)]
public static extern bool GetDeltaSignatureA(long FileTypeSet, uint HashAlgId, [MarshalAs(UnmanagedType.LPStr)] string lpSourceName, IntPtr lpHash);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdelta_GetDeltaSignatureA' -Namespace Win32 -PassThru
# $api::GetDeltaSignatureA(FileTypeSet, HashAlgId, lpSourceName, lpHash)

#uselib "msdelta.dll"
#func global GetDeltaSignatureA "GetDeltaSignatureA" sptr, sptr, sptr, sptr
; GetDeltaSignatureA FileTypeSet, HashAlgId, lpSourceName, varptr(lpHash)   ; 戻り値は stat
; FileTypeSet : LONGLONG -> "sptr"
; HashAlgId : ALG_ID -> "sptr"
; lpSourceName : LPCSTR -> "sptr"
; lpHash : DELTA_HASH* 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 "msdelta.dll"
#cfunc global GetDeltaSignatureA "GetDeltaSignatureA" int64, int, str, var
; res = GetDeltaSignatureA(FileTypeSet, HashAlgId, lpSourceName, lpHash)
; FileTypeSet : LONGLONG -> "int64"
; HashAlgId : ALG_ID -> "int"
; lpSourceName : LPCSTR -> "str"
; lpHash : DELTA_HASH* 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)。

; BOOL GetDeltaSignatureA(LONGLONG FileTypeSet, ALG_ID HashAlgId, LPCSTR lpSourceName, DELTA_HASH* lpHash)
#uselib "msdelta.dll"
#cfunc global GetDeltaSignatureA "GetDeltaSignatureA" int64, int, str, var
; res = GetDeltaSignatureA(FileTypeSet, HashAlgId, lpSourceName, lpHash)
; FileTypeSet : LONGLONG -> "int64"
; HashAlgId : ALG_ID -> "int"
; lpSourceName : LPCSTR -> "str"
; lpHash : DELTA_HASH* 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 (
	msdelta = windows.NewLazySystemDLL("msdelta.dll")
	procGetDeltaSignatureA = msdelta.NewProc("GetDeltaSignatureA")
)

// FileTypeSet (LONGLONG), HashAlgId (ALG_ID), lpSourceName (LPCSTR), lpHash (DELTA_HASH* out)
r1, _, err := procGetDeltaSignatureA.Call(
	uintptr(FileTypeSet),
	uintptr(HashAlgId),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpSourceName))),
	uintptr(lpHash),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetDeltaSignatureA(
  FileTypeSet: Int64;   // LONGLONG
  HashAlgId: DWORD;   // ALG_ID
  lpSourceName: PAnsiChar;   // LPCSTR
  lpHash: Pointer   // DELTA_HASH* out
): BOOL; stdcall;
  external 'msdelta.dll' name 'GetDeltaSignatureA';

result := DllCall("msdelta\GetDeltaSignatureA"
    , "Int64", FileTypeSet   ; LONGLONG
    , "UInt", HashAlgId   ; ALG_ID
    , "AStr", lpSourceName   ; LPCSTR
    , "Ptr", lpHash   ; DELTA_HASH* out
    , "Int")   ; return: BOOL

●GetDeltaSignatureA(FileTypeSet, HashAlgId, lpSourceName, lpHash) = DLL("msdelta.dll", "bool GetDeltaSignatureA(int64, dword, char*, void*)")
# 呼び出し: GetDeltaSignatureA(FileTypeSet, HashAlgId, lpSourceName, lpHash)
# FileTypeSet : LONGLONG -> "int64"
# HashAlgId : ALG_ID -> "dword"
# lpSourceName : LPCSTR -> "char*"
# lpHash : DELTA_HASH* 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)。