SHCreateDirectory

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

INT SHCreateDirectory(
    HWND hwnd,   // optional
    LPCWSTR pszPath
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHCreateDirectory(
    hwnd As IntPtr,   ' HWND optional
    <MarshalAs(UnmanagedType.LPWStr)> pszPath As String   ' LPCWSTR
) As Integer
End Function

' hwnd : HWND optional
' pszPath : LPCWSTR
Declare PtrSafe Function SHCreateDirectory Lib "shell32" ( _
    ByVal hwnd As LongPtr, _
    ByVal pszPath 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

SHCreateDirectory = ctypes.windll.shell32.SHCreateDirectory
SHCreateDirectory.restype = ctypes.c_int
SHCreateDirectory.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND optional
    wintypes.LPCWSTR,  # pszPath : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHCreateDirectory = Fiddle::Function.new(
  lib['SHCreateDirectory'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND optional
    Fiddle::TYPE_VOIDP,  # pszPath : LPCWSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHCreateDirectory(
        hwnd: *mut core::ffi::c_void,  // HWND optional
        pszPath: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll")]
public static extern int SHCreateDirectory(IntPtr hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszPath);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHCreateDirectory' -Namespace Win32 -PassThru
# $api::SHCreateDirectory(hwnd, pszPath)

#uselib "SHELL32.dll"
#func global SHCreateDirectory "SHCreateDirectory" sptr, sptr
; SHCreateDirectory hwnd, pszPath   ; 戻り値は stat
; hwnd : HWND optional -> "sptr"
; pszPath : LPCWSTR -> "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 SHCreateDirectory "SHCreateDirectory" sptr, wstr
; res = SHCreateDirectory(hwnd, pszPath)
; hwnd : HWND optional -> "sptr"
; pszPath : LPCWSTR -> "wstr"

; INT SHCreateDirectory(HWND hwnd, LPCWSTR pszPath)
#uselib "SHELL32.dll"
#cfunc global SHCreateDirectory "SHCreateDirectory" intptr, wstr
; res = SHCreateDirectory(hwnd, pszPath)
; hwnd : HWND optional -> "intptr"
; pszPath : LPCWSTR -> "wstr"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHCreateDirectory = shell32.NewProc("SHCreateDirectory")
)

// hwnd (HWND optional), pszPath (LPCWSTR)
r1, _, err := procSHCreateDirectory.Call(
	uintptr(hwnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszPath))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function SHCreateDirectory(
  hwnd: THandle;   // HWND optional
  pszPath: PWideChar   // LPCWSTR
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHCreateDirectory';

result := DllCall("SHELL32\SHCreateDirectory"
    , "Ptr", hwnd   ; HWND optional
    , "WStr", pszPath   ; LPCWSTR
    , "Int")   ; return: INT

●SHCreateDirectory(hwnd, pszPath) = DLL("SHELL32.dll", "int SHCreateDirectory(void*, char*)")
# 呼び出し: SHCreateDirectory(hwnd, pszPath)
# hwnd : HWND optional -> "void*"
# pszPath : LPCWSTR -> "char*"
# 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)。