GetComponentIDFromCLSSPEC

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

HRESULT GetComponentIDFromCLSSPEC(
    uCLSSPEC* pClassspec,
    LPSTR* ppszComponentID
);

<DllImport("urlmon.dll", ExactSpelling:=True)>
Public Shared Function GetComponentIDFromCLSSPEC(
    pClassspec As IntPtr,   ' uCLSSPEC*
    ppszComponentID As IntPtr   ' LPSTR* out
) As Integer
End Function

' pClassspec : uCLSSPEC*
' ppszComponentID : LPSTR* out
Declare PtrSafe Function GetComponentIDFromCLSSPEC Lib "urlmon" ( _
    ByVal pClassspec As LongPtr, _
    ByVal ppszComponentID 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

GetComponentIDFromCLSSPEC = ctypes.windll.urlmon.GetComponentIDFromCLSSPEC
GetComponentIDFromCLSSPEC.restype = ctypes.c_int
GetComponentIDFromCLSSPEC.argtypes = [
    ctypes.c_void_p,  # pClassspec : uCLSSPEC*
    ctypes.c_void_p,  # ppszComponentID : LPSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('urlmon.dll')
GetComponentIDFromCLSSPEC = Fiddle::Function.new(
  lib['GetComponentIDFromCLSSPEC'],
  [
    Fiddle::TYPE_VOIDP,  # pClassspec : uCLSSPEC*
    Fiddle::TYPE_VOIDP,  # ppszComponentID : LPSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "urlmon")]
extern "system" {
    fn GetComponentIDFromCLSSPEC(
        pClassspec: *mut uCLSSPEC,  // uCLSSPEC*
        ppszComponentID: *mut *mut u8  // LPSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("urlmon.dll")]
public static extern int GetComponentIDFromCLSSPEC(IntPtr pClassspec, IntPtr ppszComponentID);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_GetComponentIDFromCLSSPEC' -Namespace Win32 -PassThru
# $api::GetComponentIDFromCLSSPEC(pClassspec, ppszComponentID)

#uselib "urlmon.dll"
#func global GetComponentIDFromCLSSPEC "GetComponentIDFromCLSSPEC" sptr, sptr
; GetComponentIDFromCLSSPEC varptr(pClassspec), varptr(ppszComponentID)   ; 戻り値は stat
; pClassspec : uCLSSPEC* -> "sptr"
; ppszComponentID : LPSTR* 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 "urlmon.dll"
#cfunc global GetComponentIDFromCLSSPEC "GetComponentIDFromCLSSPEC" var, var
; res = GetComponentIDFromCLSSPEC(pClassspec, ppszComponentID)
; pClassspec : uCLSSPEC* -> "var"
; ppszComponentID : LPSTR* 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 GetComponentIDFromCLSSPEC(uCLSSPEC* pClassspec, LPSTR* ppszComponentID)
#uselib "urlmon.dll"
#cfunc global GetComponentIDFromCLSSPEC "GetComponentIDFromCLSSPEC" var, var
; res = GetComponentIDFromCLSSPEC(pClassspec, ppszComponentID)
; pClassspec : uCLSSPEC* -> "var"
; ppszComponentID : LPSTR* 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 (
	urlmon = windows.NewLazySystemDLL("urlmon.dll")
	procGetComponentIDFromCLSSPEC = urlmon.NewProc("GetComponentIDFromCLSSPEC")
)

// pClassspec (uCLSSPEC*), ppszComponentID (LPSTR* out)
r1, _, err := procGetComponentIDFromCLSSPEC.Call(
	uintptr(pClassspec),
	uintptr(ppszComponentID),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetComponentIDFromCLSSPEC(
  pClassspec: Pointer;   // uCLSSPEC*
  ppszComponentID: PPAnsiChar   // LPSTR* out
): Integer; stdcall;
  external 'urlmon.dll' name 'GetComponentIDFromCLSSPEC';

result := DllCall("urlmon\GetComponentIDFromCLSSPEC"
    , "Ptr", pClassspec   ; uCLSSPEC*
    , "Ptr", ppszComponentID   ; LPSTR* out
    , "Int")   ; return: HRESULT

●GetComponentIDFromCLSSPEC(pClassspec, ppszComponentID) = DLL("urlmon.dll", "int GetComponentIDFromCLSSPEC(void*, void*)")
# 呼び出し: GetComponentIDFromCLSSPEC(pClassspec, ppszComponentID)
# pClassspec : uCLSSPEC* -> "void*"
# ppszComponentID : LPSTR* 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)。