PTReleaseMemory

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

HRESULT PTReleaseMemory(
    void* pBuffer
);

<DllImport("prntvpt.dll", ExactSpelling:=True)>
Public Shared Function PTReleaseMemory(
    pBuffer As IntPtr   ' void*
) As Integer
End Function

' pBuffer : void*
Declare PtrSafe Function PTReleaseMemory Lib "prntvpt" ( _
    ByVal pBuffer 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

PTReleaseMemory = ctypes.windll.prntvpt.PTReleaseMemory
PTReleaseMemory.restype = ctypes.c_int
PTReleaseMemory.argtypes = [
    ctypes.POINTER(None),  # pBuffer : void*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('prntvpt.dll')
PTReleaseMemory = Fiddle::Function.new(
  lib['PTReleaseMemory'],
  [
    Fiddle::TYPE_VOIDP,  # pBuffer : void*
  ],
  Fiddle::TYPE_INT)

#[link(name = "prntvpt")]
extern "system" {
    fn PTReleaseMemory(
        pBuffer: *mut ()  // void*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("prntvpt.dll")]
public static extern int PTReleaseMemory(IntPtr pBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'prntvpt_PTReleaseMemory' -Namespace Win32 -PassThru
# $api::PTReleaseMemory(pBuffer)

#uselib "prntvpt.dll"
#func global PTReleaseMemory "PTReleaseMemory" sptr
; PTReleaseMemory pBuffer   ; 戻り値は stat
; pBuffer : void* -> "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 "prntvpt.dll"
#cfunc global PTReleaseMemory "PTReleaseMemory" sptr
; res = PTReleaseMemory(pBuffer)
; pBuffer : void* -> "sptr"

; HRESULT PTReleaseMemory(void* pBuffer)
#uselib "prntvpt.dll"
#cfunc global PTReleaseMemory "PTReleaseMemory" intptr
; res = PTReleaseMemory(pBuffer)
; pBuffer : void* -> "intptr"

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

var (
	prntvpt = windows.NewLazySystemDLL("prntvpt.dll")
	procPTReleaseMemory = prntvpt.NewProc("PTReleaseMemory")
)

// pBuffer (void*)
r1, _, err := procPTReleaseMemory.Call(
	uintptr(pBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function PTReleaseMemory(
  pBuffer: Pointer   // void*
): Integer; stdcall;
  external 'prntvpt.dll' name 'PTReleaseMemory';

result := DllCall("prntvpt\PTReleaseMemory"
    , "Ptr", pBuffer   ; void*
    , "Int")   ; return: HRESULT

●PTReleaseMemory(pBuffer) = DLL("prntvpt.dll", "int PTReleaseMemory(void*)")
# 呼び出し: PTReleaseMemory(pBuffer)
# pBuffer : void* -> "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)。