SHCreateShellPalette

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

HPALETTE SHCreateShellPalette(
    HDC hdc   // optional
);

<DllImport("SHLWAPI.dll", ExactSpelling:=True)>
Public Shared Function SHCreateShellPalette(
    hdc As IntPtr   ' HDC optional
) As IntPtr
End Function

' hdc : HDC optional
Declare PtrSafe Function SHCreateShellPalette Lib "shlwapi" ( _
    ByVal hdc As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SHCreateShellPalette = ctypes.windll.shlwapi.SHCreateShellPalette
SHCreateShellPalette.restype = ctypes.c_void_p
SHCreateShellPalette.argtypes = [
    wintypes.HANDLE,  # hdc : HDC optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
SHCreateShellPalette = Fiddle::Function.new(
  lib['SHCreateShellPalette'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "shlwapi")]
extern "system" {
    fn SHCreateShellPalette(
        hdc: *mut core::ffi::c_void  // HDC optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll")]
public static extern IntPtr SHCreateShellPalette(IntPtr hdc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_SHCreateShellPalette' -Namespace Win32 -PassThru
# $api::SHCreateShellPalette(hdc)

#uselib "SHLWAPI.dll"
#func global SHCreateShellPalette "SHCreateShellPalette" sptr
; SHCreateShellPalette hdc   ; 戻り値は stat
; hdc : HDC optional -> "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 "SHLWAPI.dll"
#cfunc global SHCreateShellPalette "SHCreateShellPalette" sptr
; res = SHCreateShellPalette(hdc)
; hdc : HDC optional -> "sptr"

; HPALETTE SHCreateShellPalette(HDC hdc)
#uselib "SHLWAPI.dll"
#cfunc global SHCreateShellPalette "SHCreateShellPalette" intptr
; res = SHCreateShellPalette(hdc)
; hdc : HDC optional -> "intptr"

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

var (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procSHCreateShellPalette = shlwapi.NewProc("SHCreateShellPalette")
)

// hdc (HDC optional)
r1, _, err := procSHCreateShellPalette.Call(
	uintptr(hdc),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HPALETTE

function SHCreateShellPalette(
  hdc: THandle   // HDC optional
): THandle; stdcall;
  external 'SHLWAPI.dll' name 'SHCreateShellPalette';

result := DllCall("SHLWAPI\SHCreateShellPalette"
    , "Ptr", hdc   ; HDC optional
    , "Ptr")   ; return: HPALETTE

●SHCreateShellPalette(hdc) = DLL("SHLWAPI.dll", "void* SHCreateShellPalette(void*)")
# 呼び出し: SHCreateShellPalette(hdc)
# hdc : HDC optional -> "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)。