EngDeletePalette

// GDI32.dll
#include <windows.h>

BOOL EngDeletePalette(
    HPALETTE hpal
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function EngDeletePalette(
    hpal As IntPtr   ' HPALETTE
) As Boolean
End Function

' hpal : HPALETTE
Declare PtrSafe Function EngDeletePalette Lib "gdi32" ( _
    ByVal hpal 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

EngDeletePalette = ctypes.windll.gdi32.EngDeletePalette
EngDeletePalette.restype = wintypes.BOOL
EngDeletePalette.argtypes = [
    wintypes.HANDLE,  # hpal : HPALETTE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
EngDeletePalette = Fiddle::Function.new(
  lib['EngDeletePalette'],
  [
    Fiddle::TYPE_VOIDP,  # hpal : HPALETTE
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn EngDeletePalette(
        hpal: *mut core::ffi::c_void  // HPALETTE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool EngDeletePalette(IntPtr hpal);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_EngDeletePalette' -Namespace Win32 -PassThru
# $api::EngDeletePalette(hpal)

#uselib "GDI32.dll"
#func global EngDeletePalette "EngDeletePalette" sptr
; EngDeletePalette hpal   ; 戻り値は stat
; hpal : HPALETTE -> "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 "GDI32.dll"
#cfunc global EngDeletePalette "EngDeletePalette" sptr
; res = EngDeletePalette(hpal)
; hpal : HPALETTE -> "sptr"

; BOOL EngDeletePalette(HPALETTE hpal)
#uselib "GDI32.dll"
#cfunc global EngDeletePalette "EngDeletePalette" intptr
; res = EngDeletePalette(hpal)
; hpal : HPALETTE -> "intptr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procEngDeletePalette = gdi32.NewProc("EngDeletePalette")
)

// hpal (HPALETTE)
r1, _, err := procEngDeletePalette.Call(
	uintptr(hpal),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EngDeletePalette(
  hpal: THandle   // HPALETTE
): BOOL; stdcall;
  external 'GDI32.dll' name 'EngDeletePalette';

result := DllCall("GDI32\EngDeletePalette"
    , "Ptr", hpal   ; HPALETTE
    , "Int")   ; return: BOOL

●EngDeletePalette(hpal) = DLL("GDI32.dll", "bool EngDeletePalette(void*)")
# 呼び出し: EngDeletePalette(hpal)
# hpal : HPALETTE -> "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)。