UuidFromStringA

// RPCRT4.dll  (ANSI / -A)
#include <windows.h>

RPC_STATUS UuidFromStringA(
    LPSTR StringUuid,   // optional
    GUID* Uuid
);

<DllImport("RPCRT4.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function UuidFromStringA(
    <MarshalAs(UnmanagedType.LPStr)> StringUuid As String,   ' LPSTR optional
    <Out> ByRef Uuid As Guid   ' GUID* out
) As Integer
End Function

' StringUuid : LPSTR optional
' Uuid : GUID* out
Declare PtrSafe Function UuidFromStringA Lib "rpcrt4" ( _
    ByVal StringUuid As String, _
    ByVal Uuid 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

UuidFromStringA = ctypes.windll.rpcrt4.UuidFromStringA
UuidFromStringA.restype = ctypes.c_int
UuidFromStringA.argtypes = [
    wintypes.LPCSTR,  # StringUuid : LPSTR optional
    ctypes.c_void_p,  # Uuid : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
UuidFromStringA = Fiddle::Function.new(
  lib['UuidFromStringA'],
  [
    Fiddle::TYPE_VOIDP,  # StringUuid : LPSTR optional
    Fiddle::TYPE_VOIDP,  # Uuid : GUID* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "rpcrt4")]
extern "system" {
    fn UuidFromStringA(
        StringUuid: *mut u8,  // LPSTR optional
        Uuid: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll", CharSet = CharSet.Ansi)]
public static extern int UuidFromStringA([MarshalAs(UnmanagedType.LPStr)] string StringUuid, out Guid Uuid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_UuidFromStringA' -Namespace Win32 -PassThru
# $api::UuidFromStringA(StringUuid, Uuid)

#uselib "RPCRT4.dll"
#func global UuidFromStringA "UuidFromStringA" sptr, sptr
; UuidFromStringA StringUuid, varptr(Uuid)   ; 戻り値は stat
; StringUuid : LPSTR optional -> "sptr"
; Uuid : GUID* out -> "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 "RPCRT4.dll"
#cfunc global UuidFromStringA "UuidFromStringA" str, var
; res = UuidFromStringA(StringUuid, Uuid)
; StringUuid : LPSTR optional -> "str"
; Uuid : GUID* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; RPC_STATUS UuidFromStringA(LPSTR StringUuid, GUID* Uuid)
#uselib "RPCRT4.dll"
#cfunc global UuidFromStringA "UuidFromStringA" str, var
; res = UuidFromStringA(StringUuid, Uuid)
; StringUuid : LPSTR optional -> "str"
; Uuid : GUID* out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procUuidFromStringA = rpcrt4.NewProc("UuidFromStringA")
)

// StringUuid (LPSTR optional), Uuid (GUID* out)
r1, _, err := procUuidFromStringA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(StringUuid))),
	uintptr(Uuid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // RPC_STATUS

function UuidFromStringA(
  StringUuid: PAnsiChar;   // LPSTR optional
  Uuid: PGUID   // GUID* out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'UuidFromStringA';

result := DllCall("RPCRT4\UuidFromStringA"
    , "AStr", StringUuid   ; LPSTR optional
    , "Ptr", Uuid   ; GUID* out
    , "Int")   ; return: RPC_STATUS

●UuidFromStringA(StringUuid, Uuid) = DLL("RPCRT4.dll", "int UuidFromStringA(char*, void*)")
# 呼び出し: UuidFromStringA(StringUuid, Uuid)
# StringUuid : LPSTR optional -> "char*"
# Uuid : GUID* out -> "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)。