CryptMemRealloc

// CRYPT32.dll
#include <windows.h>

void* CryptMemRealloc(
    void* pv,   // optional
    DWORD cbSize
);

<DllImport("CRYPT32.dll", ExactSpelling:=True)>
Public Shared Function CryptMemRealloc(
    pv As IntPtr,   ' void* optional
    cbSize As UInteger   ' DWORD
) As IntPtr
End Function

' pv : void* optional
' cbSize : DWORD
Declare PtrSafe Function CryptMemRealloc Lib "crypt32" ( _
    ByVal pv As LongPtr, _
    ByVal cbSize As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptMemRealloc = ctypes.windll.crypt32.CryptMemRealloc
CryptMemRealloc.restype = ctypes.c_void_p
CryptMemRealloc.argtypes = [
    ctypes.POINTER(None),  # pv : void* optional
    wintypes.DWORD,  # cbSize : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptMemRealloc = Fiddle::Function.new(
  lib['CryptMemRealloc'],
  [
    Fiddle::TYPE_VOIDP,  # pv : void* optional
    -Fiddle::TYPE_INT,  # cbSize : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "crypt32")]
extern "system" {
    fn CryptMemRealloc(
        pv: *mut (),  // void* optional
        cbSize: u32  // DWORD
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll")]
public static extern IntPtr CryptMemRealloc(IntPtr pv, uint cbSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptMemRealloc' -Namespace Win32 -PassThru
# $api::CryptMemRealloc(pv, cbSize)

#uselib "CRYPT32.dll"
#func global CryptMemRealloc "CryptMemRealloc" sptr, sptr
; CryptMemRealloc pv, cbSize   ; 戻り値は stat
; pv : void* optional -> "sptr"
; cbSize : DWORD -> "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 "CRYPT32.dll"
#cfunc global CryptMemRealloc "CryptMemRealloc" sptr, int
; res = CryptMemRealloc(pv, cbSize)
; pv : void* optional -> "sptr"
; cbSize : DWORD -> "int"

; void* CryptMemRealloc(void* pv, DWORD cbSize)
#uselib "CRYPT32.dll"
#cfunc global CryptMemRealloc "CryptMemRealloc" intptr, int
; res = CryptMemRealloc(pv, cbSize)
; pv : void* optional -> "intptr"
; cbSize : DWORD -> "int"

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

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptMemRealloc = crypt32.NewProc("CryptMemRealloc")
)

// pv (void* optional), cbSize (DWORD)
r1, _, err := procCryptMemRealloc.Call(
	uintptr(pv),
	uintptr(cbSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void*

function CryptMemRealloc(
  pv: Pointer;   // void* optional
  cbSize: DWORD   // DWORD
): Pointer; stdcall;
  external 'CRYPT32.dll' name 'CryptMemRealloc';

result := DllCall("CRYPT32\CryptMemRealloc"
    , "Ptr", pv   ; void* optional
    , "UInt", cbSize   ; DWORD
    , "Ptr")   ; return: void*

●CryptMemRealloc(pv, cbSize) = DLL("CRYPT32.dll", "void* CryptMemRealloc(void*, dword)")
# 呼び出し: CryptMemRealloc(pv, cbSize)
# pv : void* optional -> "void*"
# cbSize : DWORD -> "dword"
# 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)。