DestroyIcon

// USER32.dll
#include <windows.h>

BOOL DestroyIcon(
    HICON hIcon
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DestroyIcon(
    hIcon As IntPtr   ' HICON
) As Boolean
End Function

' hIcon : HICON
Declare PtrSafe Function DestroyIcon Lib "user32" ( _
    ByVal hIcon 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

DestroyIcon = ctypes.windll.user32.DestroyIcon
DestroyIcon.restype = wintypes.BOOL
DestroyIcon.argtypes = [
    wintypes.HANDLE,  # hIcon : HICON
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
DestroyIcon = Fiddle::Function.new(
  lib['DestroyIcon'],
  [
    Fiddle::TYPE_VOIDP,  # hIcon : HICON
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn DestroyIcon(
        hIcon: *mut core::ffi::c_void  // HICON
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true)]
public static extern bool DestroyIcon(IntPtr hIcon);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_DestroyIcon' -Namespace Win32 -PassThru
# $api::DestroyIcon(hIcon)

#uselib "USER32.dll"
#func global DestroyIcon "DestroyIcon" sptr
; DestroyIcon hIcon   ; 戻り値は stat
; hIcon : HICON -> "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 "USER32.dll"
#cfunc global DestroyIcon "DestroyIcon" sptr
; res = DestroyIcon(hIcon)
; hIcon : HICON -> "sptr"

; BOOL DestroyIcon(HICON hIcon)
#uselib "USER32.dll"
#cfunc global DestroyIcon "DestroyIcon" intptr
; res = DestroyIcon(hIcon)
; hIcon : HICON -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procDestroyIcon = user32.NewProc("DestroyIcon")
)

// hIcon (HICON)
r1, _, err := procDestroyIcon.Call(
	uintptr(hIcon),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DestroyIcon(
  hIcon: THandle   // HICON
): BOOL; stdcall;
  external 'USER32.dll' name 'DestroyIcon';

result := DllCall("USER32\DestroyIcon"
    , "Ptr", hIcon   ; HICON
    , "Int")   ; return: BOOL

●DestroyIcon(hIcon) = DLL("USER32.dll", "bool DestroyIcon(void*)")
# 呼び出し: DestroyIcon(hIcon)
# hIcon : HICON -> "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)。