CLSIDFromProgIDEx

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

HRESULT CLSIDFromProgIDEx(
    LPCWSTR lpszProgID,
    GUID* lpclsid
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CLSIDFromProgIDEx(
    <MarshalAs(UnmanagedType.LPWStr)> lpszProgID As String,   ' LPCWSTR
    <Out> ByRef lpclsid As Guid   ' GUID* out
) As Integer
End Function

' lpszProgID : LPCWSTR
' lpclsid : GUID* out
Declare PtrSafe Function CLSIDFromProgIDEx Lib "ole32" ( _
    ByVal lpszProgID As LongPtr, _
    ByVal lpclsid 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

CLSIDFromProgIDEx = ctypes.windll.ole32.CLSIDFromProgIDEx
CLSIDFromProgIDEx.restype = ctypes.c_int
CLSIDFromProgIDEx.argtypes = [
    wintypes.LPCWSTR,  # lpszProgID : LPCWSTR
    ctypes.c_void_p,  # lpclsid : GUID* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CLSIDFromProgIDEx = Fiddle::Function.new(
  lib['CLSIDFromProgIDEx'],
  [
    Fiddle::TYPE_VOIDP,  # lpszProgID : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpclsid : GUID* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CLSIDFromProgIDEx(
        lpszProgID: *const u16,  // LPCWSTR
        lpclsid: *mut GUID  // GUID* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CLSIDFromProgIDEx([MarshalAs(UnmanagedType.LPWStr)] string lpszProgID, out Guid lpclsid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CLSIDFromProgIDEx' -Namespace Win32 -PassThru
# $api::CLSIDFromProgIDEx(lpszProgID, lpclsid)

#uselib "OLE32.dll"
#func global CLSIDFromProgIDEx "CLSIDFromProgIDEx" sptr, sptr
; CLSIDFromProgIDEx lpszProgID, varptr(lpclsid)   ; 戻り値は stat
; lpszProgID : LPCWSTR -> "sptr"
; lpclsid : 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 "OLE32.dll"
#cfunc global CLSIDFromProgIDEx "CLSIDFromProgIDEx" wstr, var
; res = CLSIDFromProgIDEx(lpszProgID, lpclsid)
; lpszProgID : LPCWSTR -> "wstr"
; lpclsid : 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。

; HRESULT CLSIDFromProgIDEx(LPCWSTR lpszProgID, GUID* lpclsid)
#uselib "OLE32.dll"
#cfunc global CLSIDFromProgIDEx "CLSIDFromProgIDEx" wstr, var
; res = CLSIDFromProgIDEx(lpszProgID, lpclsid)
; lpszProgID : LPCWSTR -> "wstr"
; lpclsid : 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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCLSIDFromProgIDEx = ole32.NewProc("CLSIDFromProgIDEx")
)

// lpszProgID (LPCWSTR), lpclsid (GUID* out)
r1, _, err := procCLSIDFromProgIDEx.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszProgID))),
	uintptr(lpclsid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CLSIDFromProgIDEx(
  lpszProgID: PWideChar;   // LPCWSTR
  lpclsid: PGUID   // GUID* out
): Integer; stdcall;
  external 'OLE32.dll' name 'CLSIDFromProgIDEx';

result := DllCall("OLE32\CLSIDFromProgIDEx"
    , "WStr", lpszProgID   ; LPCWSTR
    , "Ptr", lpclsid   ; GUID* out
    , "Int")   ; return: HRESULT

●CLSIDFromProgIDEx(lpszProgID, lpclsid) = DLL("OLE32.dll", "int CLSIDFromProgIDEx(char*, void*)")
# 呼び出し: CLSIDFromProgIDEx(lpszProgID, lpclsid)
# lpszProgID : LPCWSTR -> "char*"
# lpclsid : 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)。