HeapCreate

// KERNEL32.dll
#include <windows.h>

HANDLE HeapCreate(
    HEAP_FLAGS flOptions,
    UINT_PTR dwInitialSize,
    UINT_PTR dwMaximumSize
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function HeapCreate(
    flOptions As UInteger,   ' HEAP_FLAGS
    dwInitialSize As UIntPtr,   ' UINT_PTR
    dwMaximumSize As UIntPtr   ' UINT_PTR
) As IntPtr
End Function

' flOptions : HEAP_FLAGS
' dwInitialSize : UINT_PTR
' dwMaximumSize : UINT_PTR
Declare PtrSafe Function HeapCreate Lib "kernel32" ( _
    ByVal flOptions As Long, _
    ByVal dwInitialSize As LongPtr, _
    ByVal dwMaximumSize 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

HeapCreate = ctypes.windll.kernel32.HeapCreate
HeapCreate.restype = ctypes.c_void_p
HeapCreate.argtypes = [
    wintypes.DWORD,  # flOptions : HEAP_FLAGS
    ctypes.c_size_t,  # dwInitialSize : UINT_PTR
    ctypes.c_size_t,  # dwMaximumSize : UINT_PTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
HeapCreate = Fiddle::Function.new(
  lib['HeapCreate'],
  [
    -Fiddle::TYPE_INT,  # flOptions : HEAP_FLAGS
    Fiddle::TYPE_UINTPTR_T,  # dwInitialSize : UINT_PTR
    Fiddle::TYPE_UINTPTR_T,  # dwMaximumSize : UINT_PTR
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "kernel32")]
extern "system" {
    fn HeapCreate(
        flOptions: u32,  // HEAP_FLAGS
        dwInitialSize: usize,  // UINT_PTR
        dwMaximumSize: usize  // UINT_PTR
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern IntPtr HeapCreate(uint flOptions, UIntPtr dwInitialSize, UIntPtr dwMaximumSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_HeapCreate' -Namespace Win32 -PassThru
# $api::HeapCreate(flOptions, dwInitialSize, dwMaximumSize)

#uselib "KERNEL32.dll"
#func global HeapCreate "HeapCreate" sptr, sptr, sptr
; HeapCreate flOptions, dwInitialSize, dwMaximumSize   ; 戻り値は stat
; flOptions : HEAP_FLAGS -> "sptr"
; dwInitialSize : UINT_PTR -> "sptr"
; dwMaximumSize : 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 "KERNEL32.dll"
#cfunc global HeapCreate "HeapCreate" int, sptr, sptr
; res = HeapCreate(flOptions, dwInitialSize, dwMaximumSize)
; flOptions : HEAP_FLAGS -> "int"
; dwInitialSize : UINT_PTR -> "sptr"
; dwMaximumSize : UINT_PTR -> "sptr"

; HANDLE HeapCreate(HEAP_FLAGS flOptions, UINT_PTR dwInitialSize, UINT_PTR dwMaximumSize)
#uselib "KERNEL32.dll"
#cfunc global HeapCreate "HeapCreate" int, intptr, intptr
; res = HeapCreate(flOptions, dwInitialSize, dwMaximumSize)
; flOptions : HEAP_FLAGS -> "int"
; dwInitialSize : UINT_PTR -> "intptr"
; dwMaximumSize : UINT_PTR -> "intptr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procHeapCreate = kernel32.NewProc("HeapCreate")
)

// flOptions (HEAP_FLAGS), dwInitialSize (UINT_PTR), dwMaximumSize (UINT_PTR)
r1, _, err := procHeapCreate.Call(
	uintptr(flOptions),
	uintptr(dwInitialSize),
	uintptr(dwMaximumSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HANDLE

function HeapCreate(
  flOptions: DWORD;   // HEAP_FLAGS
  dwInitialSize: NativeUInt;   // UINT_PTR
  dwMaximumSize: NativeUInt   // UINT_PTR
): THandle; stdcall;
  external 'KERNEL32.dll' name 'HeapCreate';

result := DllCall("KERNEL32\HeapCreate"
    , "UInt", flOptions   ; HEAP_FLAGS
    , "UPtr", dwInitialSize   ; UINT_PTR
    , "UPtr", dwMaximumSize   ; UINT_PTR
    , "Ptr")   ; return: HANDLE

●HeapCreate(flOptions, dwInitialSize, dwMaximumSize) = DLL("KERNEL32.dll", "void* HeapCreate(dword, int, int)")
# 呼び出し: HeapCreate(flOptions, dwInitialSize, dwMaximumSize)
# flOptions : HEAP_FLAGS -> "dword"
# dwInitialSize : UINT_PTR -> "int"
# dwMaximumSize : 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)。