CoTaskMemRealloc

// OLE32.dll
#include <windows.h>

void* CoTaskMemRealloc(
    void* pv,   // optional
    UINT_PTR cb
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoTaskMemRealloc(
    pv As IntPtr,   ' void* optional
    cb As UIntPtr   ' UINT_PTR
) As IntPtr
End Function

' pv : void* optional
' cb : UINT_PTR
Declare PtrSafe Function CoTaskMemRealloc Lib "ole32" ( _
    ByVal pv As LongPtr, _
    ByVal cb As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CoTaskMemRealloc = ctypes.windll.ole32.CoTaskMemRealloc
CoTaskMemRealloc.restype = ctypes.c_void_p
CoTaskMemRealloc.argtypes = [
    ctypes.POINTER(None),  # pv : void* optional
    ctypes.c_size_t,  # cb : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoTaskMemRealloc = Fiddle::Function.new(
  lib['CoTaskMemRealloc'],
  [
    Fiddle::TYPE_VOIDP,  # pv : void* optional
    Fiddle::TYPE_UINTPTR_T,  # cb : UINT_PTR
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "ole32")]
extern "system" {
    fn CoTaskMemRealloc(
        pv: *mut (),  // void* optional
        cb: usize  // UINT_PTR
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern IntPtr CoTaskMemRealloc(IntPtr pv, UIntPtr cb);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoTaskMemRealloc' -Namespace Win32 -PassThru
# $api::CoTaskMemRealloc(pv, cb)

#uselib "OLE32.dll"
#func global CoTaskMemRealloc "CoTaskMemRealloc" sptr, sptr
; CoTaskMemRealloc pv, cb   ; 戻り値は stat
; pv : void* optional -> "sptr"
; cb : UINT_PTR -> "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 "OLE32.dll"
#cfunc global CoTaskMemRealloc "CoTaskMemRealloc" sptr, sptr
; res = CoTaskMemRealloc(pv, cb)
; pv : void* optional -> "sptr"
; cb : UINT_PTR -> "sptr"

; void* CoTaskMemRealloc(void* pv, UINT_PTR cb)
#uselib "OLE32.dll"
#cfunc global CoTaskMemRealloc "CoTaskMemRealloc" intptr, intptr
; res = CoTaskMemRealloc(pv, cb)
; pv : void* optional -> "intptr"
; cb : UINT_PTR -> "intptr"

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoTaskMemRealloc = ole32.NewProc("CoTaskMemRealloc")
)

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

function CoTaskMemRealloc(
  pv: Pointer;   // void* optional
  cb: NativeUInt   // UINT_PTR
): Pointer; stdcall;
  external 'OLE32.dll' name 'CoTaskMemRealloc';

result := DllCall("OLE32\CoTaskMemRealloc"
    , "Ptr", pv   ; void* optional
    , "UPtr", cb   ; UINT_PTR
    , "Ptr")   ; return: void*

●CoTaskMemRealloc(pv, cb) = DLL("OLE32.dll", "void* CoTaskMemRealloc(void*, int)")
# 呼び出し: CoTaskMemRealloc(pv, cb)
# pv : void* optional -> "void*"
# cb : UINT_PTR -> "int"
# 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)。