VirtualAllocFromApp

// api-ms-win-core-memory-l1-1-3.dll
#include <windows.h>

void* VirtualAllocFromApp(
    void* BaseAddress,   // optional
    UINT_PTR Size,
    VIRTUAL_ALLOCATION_TYPE AllocationType,
    DWORD Protection
);

<DllImport("api-ms-win-core-memory-l1-1-3.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function VirtualAllocFromApp(
    BaseAddress As IntPtr,   ' void* optional
    Size As UIntPtr,   ' UINT_PTR
    AllocationType As UInteger,   ' VIRTUAL_ALLOCATION_TYPE
    Protection As UInteger   ' DWORD
) As IntPtr
End Function

' BaseAddress : void* optional
' Size : UINT_PTR
' AllocationType : VIRTUAL_ALLOCATION_TYPE
' Protection : DWORD
Declare PtrSafe Function VirtualAllocFromApp Lib "api-ms-win-core-memory-l1-1-3" ( _
    ByVal BaseAddress As LongPtr, _
    ByVal Size As LongPtr, _
    ByVal AllocationType As Long, _
    ByVal Protection 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

VirtualAllocFromApp = ctypes.windll.LoadLibrary("api-ms-win-core-memory-l1-1-3.dll").VirtualAllocFromApp
VirtualAllocFromApp.restype = ctypes.c_void_p
VirtualAllocFromApp.argtypes = [
    ctypes.POINTER(None),  # BaseAddress : void* optional
    ctypes.c_size_t,  # Size : UINT_PTR
    wintypes.DWORD,  # AllocationType : VIRTUAL_ALLOCATION_TYPE
    wintypes.DWORD,  # Protection : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('api-ms-win-core-memory-l1-1-3.dll')
VirtualAllocFromApp = Fiddle::Function.new(
  lib['VirtualAllocFromApp'],
  [
    Fiddle::TYPE_VOIDP,  # BaseAddress : void* optional
    Fiddle::TYPE_UINTPTR_T,  # Size : UINT_PTR
    -Fiddle::TYPE_INT,  # AllocationType : VIRTUAL_ALLOCATION_TYPE
    -Fiddle::TYPE_INT,  # Protection : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "api-ms-win-core-memory-l1-1-3")]
extern "system" {
    fn VirtualAllocFromApp(
        BaseAddress: *mut (),  // void* optional
        Size: usize,  // UINT_PTR
        AllocationType: u32,  // VIRTUAL_ALLOCATION_TYPE
        Protection: u32  // DWORD
    ) -> *mut ();
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("api-ms-win-core-memory-l1-1-3.dll", SetLastError = true)]
public static extern IntPtr VirtualAllocFromApp(IntPtr BaseAddress, UIntPtr Size, uint AllocationType, uint Protection);
"@
$api = Add-Type -MemberDefinition $sig -Name 'api-ms-win-core-memory-l1-1-3_VirtualAllocFromApp' -Namespace Win32 -PassThru
# $api::VirtualAllocFromApp(BaseAddress, Size, AllocationType, Protection)

#uselib "api-ms-win-core-memory-l1-1-3.dll"
#func global VirtualAllocFromApp "VirtualAllocFromApp" sptr, sptr, sptr, sptr
; VirtualAllocFromApp BaseAddress, Size, AllocationType, Protection   ; 戻り値は stat
; BaseAddress : void* optional -> "sptr"
; Size : UINT_PTR -> "sptr"
; AllocationType : VIRTUAL_ALLOCATION_TYPE -> "sptr"
; Protection : 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 "api-ms-win-core-memory-l1-1-3.dll"
#cfunc global VirtualAllocFromApp "VirtualAllocFromApp" sptr, sptr, int, int
; res = VirtualAllocFromApp(BaseAddress, Size, AllocationType, Protection)
; BaseAddress : void* optional -> "sptr"
; Size : UINT_PTR -> "sptr"
; AllocationType : VIRTUAL_ALLOCATION_TYPE -> "int"
; Protection : DWORD -> "int"

; void* VirtualAllocFromApp(void* BaseAddress, UINT_PTR Size, VIRTUAL_ALLOCATION_TYPE AllocationType, DWORD Protection)
#uselib "api-ms-win-core-memory-l1-1-3.dll"
#cfunc global VirtualAllocFromApp "VirtualAllocFromApp" intptr, intptr, int, int
; res = VirtualAllocFromApp(BaseAddress, Size, AllocationType, Protection)
; BaseAddress : void* optional -> "intptr"
; Size : UINT_PTR -> "intptr"
; AllocationType : VIRTUAL_ALLOCATION_TYPE -> "int"
; Protection : DWORD -> "int"

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

var (
	api_ms_win_core_memory_l1_1_3 = windows.NewLazySystemDLL("api-ms-win-core-memory-l1-1-3.dll")
	procVirtualAllocFromApp = api_ms_win_core_memory_l1_1_3.NewProc("VirtualAllocFromApp")
)

// BaseAddress (void* optional), Size (UINT_PTR), AllocationType (VIRTUAL_ALLOCATION_TYPE), Protection (DWORD)
r1, _, err := procVirtualAllocFromApp.Call(
	uintptr(BaseAddress),
	uintptr(Size),
	uintptr(AllocationType),
	uintptr(Protection),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void*

function VirtualAllocFromApp(
  BaseAddress: Pointer;   // void* optional
  Size: NativeUInt;   // UINT_PTR
  AllocationType: DWORD;   // VIRTUAL_ALLOCATION_TYPE
  Protection: DWORD   // DWORD
): Pointer; stdcall;
  external 'api-ms-win-core-memory-l1-1-3.dll' name 'VirtualAllocFromApp';

result := DllCall("api-ms-win-core-memory-l1-1-3\VirtualAllocFromApp"
    , "Ptr", BaseAddress   ; void* optional
    , "UPtr", Size   ; UINT_PTR
    , "UInt", AllocationType   ; VIRTUAL_ALLOCATION_TYPE
    , "UInt", Protection   ; DWORD
    , "Ptr")   ; return: void*

●VirtualAllocFromApp(BaseAddress, Size, AllocationType, Protection) = DLL("api-ms-win-core-memory-l1-1-3.dll", "void* VirtualAllocFromApp(void*, int, dword, dword)")
# 呼び出し: VirtualAllocFromApp(BaseAddress, Size, AllocationType, Protection)
# BaseAddress : void* optional -> "void*"
# Size : UINT_PTR -> "int"
# AllocationType : VIRTUAL_ALLOCATION_TYPE -> "dword"
# Protection : 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)。