SHOpenWithDialog

// SHELL32.dll
#include <windows.h>

HRESULT SHOpenWithDialog(
    HWND hwndParent,   // optional
    const OPENASINFO* poainfo
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHOpenWithDialog(
    hwndParent As IntPtr,   ' HWND optional
    poainfo As IntPtr   ' OPENASINFO*
) As Integer
End Function

' hwndParent : HWND optional
' poainfo : OPENASINFO*
Declare PtrSafe Function SHOpenWithDialog Lib "shell32" ( _
    ByVal hwndParent As LongPtr, _
    ByVal poainfo 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

SHOpenWithDialog = ctypes.windll.shell32.SHOpenWithDialog
SHOpenWithDialog.restype = ctypes.c_int
SHOpenWithDialog.argtypes = [
    wintypes.HANDLE,  # hwndParent : HWND optional
    ctypes.c_void_p,  # poainfo : OPENASINFO*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHOpenWithDialog = Fiddle::Function.new(
  lib['SHOpenWithDialog'],
  [
    Fiddle::TYPE_VOIDP,  # hwndParent : HWND optional
    Fiddle::TYPE_VOIDP,  # poainfo : OPENASINFO*
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHOpenWithDialog(
        hwndParent: *mut core::ffi::c_void,  // HWND optional
        poainfo: *const OPENASINFO  // OPENASINFO*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll")]
public static extern int SHOpenWithDialog(IntPtr hwndParent, IntPtr poainfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHOpenWithDialog' -Namespace Win32 -PassThru
# $api::SHOpenWithDialog(hwndParent, poainfo)

#uselib "SHELL32.dll"
#func global SHOpenWithDialog "SHOpenWithDialog" sptr, sptr
; SHOpenWithDialog hwndParent, varptr(poainfo)   ; 戻り値は stat
; hwndParent : HWND optional -> "sptr"
; poainfo : OPENASINFO* -> "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 "SHELL32.dll"
#cfunc global SHOpenWithDialog "SHOpenWithDialog" sptr, var
; res = SHOpenWithDialog(hwndParent, poainfo)
; hwndParent : HWND optional -> "sptr"
; poainfo : OPENASINFO* -> "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 SHOpenWithDialog(HWND hwndParent, OPENASINFO* poainfo)
#uselib "SHELL32.dll"
#cfunc global SHOpenWithDialog "SHOpenWithDialog" intptr, var
; res = SHOpenWithDialog(hwndParent, poainfo)
; hwndParent : HWND optional -> "intptr"
; poainfo : OPENASINFO* -> "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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHOpenWithDialog = shell32.NewProc("SHOpenWithDialog")
)

// hwndParent (HWND optional), poainfo (OPENASINFO*)
r1, _, err := procSHOpenWithDialog.Call(
	uintptr(hwndParent),
	uintptr(poainfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHOpenWithDialog(
  hwndParent: THandle;   // HWND optional
  poainfo: Pointer   // OPENASINFO*
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHOpenWithDialog';

result := DllCall("SHELL32\SHOpenWithDialog"
    , "Ptr", hwndParent   ; HWND optional
    , "Ptr", poainfo   ; OPENASINFO*
    , "Int")   ; return: HRESULT

●SHOpenWithDialog(hwndParent, poainfo) = DLL("SHELL32.dll", "int SHOpenWithDialog(void*, void*)")
# 呼び出し: SHOpenWithDialog(hwndParent, poainfo)
# hwndParent : HWND optional -> "void*"
# poainfo : OPENASINFO* -> "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)。