OleQueryCreateFromData

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

HRESULT OleQueryCreateFromData(
    IDataObject* pSrcDataObject
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function OleQueryCreateFromData(
    pSrcDataObject As IntPtr   ' IDataObject*
) As Integer
End Function

' pSrcDataObject : IDataObject*
Declare PtrSafe Function OleQueryCreateFromData Lib "ole32" ( _
    ByVal pSrcDataObject 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

OleQueryCreateFromData = ctypes.windll.ole32.OleQueryCreateFromData
OleQueryCreateFromData.restype = ctypes.c_int
OleQueryCreateFromData.argtypes = [
    ctypes.c_void_p,  # pSrcDataObject : IDataObject*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
OleQueryCreateFromData = Fiddle::Function.new(
  lib['OleQueryCreateFromData'],
  [
    Fiddle::TYPE_VOIDP,  # pSrcDataObject : IDataObject*
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn OleQueryCreateFromData(
        pSrcDataObject: *mut core::ffi::c_void  // IDataObject*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int OleQueryCreateFromData(IntPtr pSrcDataObject);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_OleQueryCreateFromData' -Namespace Win32 -PassThru
# $api::OleQueryCreateFromData(pSrcDataObject)

#uselib "OLE32.dll"
#func global OleQueryCreateFromData "OleQueryCreateFromData" sptr
; OleQueryCreateFromData pSrcDataObject   ; 戻り値は stat
; pSrcDataObject : IDataObject* -> "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 OleQueryCreateFromData "OleQueryCreateFromData" sptr
; res = OleQueryCreateFromData(pSrcDataObject)
; pSrcDataObject : IDataObject* -> "sptr"

; HRESULT OleQueryCreateFromData(IDataObject* pSrcDataObject)
#uselib "OLE32.dll"
#cfunc global OleQueryCreateFromData "OleQueryCreateFromData" intptr
; res = OleQueryCreateFromData(pSrcDataObject)
; pSrcDataObject : IDataObject* -> "intptr"

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procOleQueryCreateFromData = ole32.NewProc("OleQueryCreateFromData")
)

// pSrcDataObject (IDataObject*)
r1, _, err := procOleQueryCreateFromData.Call(
	uintptr(pSrcDataObject),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OleQueryCreateFromData(
  pSrcDataObject: Pointer   // IDataObject*
): Integer; stdcall;
  external 'OLE32.dll' name 'OleQueryCreateFromData';

result := DllCall("OLE32\OleQueryCreateFromData"
    , "Ptr", pSrcDataObject   ; IDataObject*
    , "Int")   ; return: HRESULT

●OleQueryCreateFromData(pSrcDataObject) = DLL("OLE32.dll", "int OleQueryCreateFromData(void*)")
# 呼び出し: OleQueryCreateFromData(pSrcDataObject)
# pSrcDataObject : IDataObject* -> "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)。