LBItemFromPt

// COMCTL32.dll
#include <windows.h>

INT LBItemFromPt(
    HWND hLB,
    POINT pt,
    BOOL bAutoScroll
);

<DllImport("COMCTL32.dll", ExactSpelling:=True)>
Public Shared Function LBItemFromPt(
    hLB As IntPtr,   ' HWND
    pt As POINT,   ' POINT
    bAutoScroll As Boolean   ' BOOL
) As Integer
End Function

' hLB : HWND
' pt : POINT
' bAutoScroll : BOOL
Declare PtrSafe Function LBItemFromPt Lib "comctl32" ( _
    ByVal hLB As LongPtr, _
    ByVal pt As LongPtr, _
    ByVal bAutoScroll As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

LBItemFromPt = ctypes.windll.comctl32.LBItemFromPt
LBItemFromPt.restype = ctypes.c_int
LBItemFromPt.argtypes = [
    wintypes.HANDLE,  # hLB : HWND
    POINT,  # pt : POINT
    wintypes.BOOL,  # bAutoScroll : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('COMCTL32.dll')
LBItemFromPt = Fiddle::Function.new(
  lib['LBItemFromPt'],
  [
    Fiddle::TYPE_VOIDP,  # hLB : HWND
    Fiddle::TYPE_VOIDP,  # pt : POINT
    Fiddle::TYPE_INT,  # bAutoScroll : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "comctl32")]
extern "system" {
    fn LBItemFromPt(
        hLB: *mut core::ffi::c_void,  // HWND
        pt: POINT,  // POINT
        bAutoScroll: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("COMCTL32.dll")]
public static extern int LBItemFromPt(IntPtr hLB, POINT pt, bool bAutoScroll);
"@
$api = Add-Type -MemberDefinition $sig -Name 'COMCTL32_LBItemFromPt' -Namespace Win32 -PassThru
# $api::LBItemFromPt(hLB, pt, bAutoScroll)

#uselib "COMCTL32.dll"
#func global LBItemFromPt "LBItemFromPt" sptr, sptr, sptr
; LBItemFromPt hLB, pt, bAutoScroll   ; 戻り値は stat
; hLB : HWND -> "sptr"
; pt : POINT -> "sptr"
; bAutoScroll : BOOL -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "COMCTL32.dll"
#cfunc global LBItemFromPt "LBItemFromPt" sptr, int, int
; res = LBItemFromPt(hLB, pt, bAutoScroll)
; hLB : HWND -> "sptr"
; pt : POINT -> "int"
; bAutoScroll : BOOL -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

; INT LBItemFromPt(HWND hLB, POINT pt, BOOL bAutoScroll)
#uselib "COMCTL32.dll"
#cfunc global LBItemFromPt "LBItemFromPt" intptr, int, int
; res = LBItemFromPt(hLB, pt, bAutoScroll)
; hLB : HWND -> "intptr"
; pt : POINT -> "int"
; bAutoScroll : BOOL -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

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

var (
	comctl32 = windows.NewLazySystemDLL("COMCTL32.dll")
	procLBItemFromPt = comctl32.NewProc("LBItemFromPt")
)

// hLB (HWND), pt (POINT), bAutoScroll (BOOL)
r1, _, err := procLBItemFromPt.Call(
	uintptr(hLB),
	uintptr(pt),
	uintptr(bAutoScroll),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LBItemFromPt(
  hLB: THandle;   // HWND
  pt: POINT;   // POINT
  bAutoScroll: BOOL   // BOOL
): Integer; stdcall;
  external 'COMCTL32.dll' name 'LBItemFromPt';

result := DllCall("COMCTL32\LBItemFromPt"
    , "Ptr", hLB   ; HWND
    , "Ptr", pt   ; POINT
    , "Int", bAutoScroll   ; BOOL
    , "Int")   ; return: INT

●LBItemFromPt(hLB, pt, bAutoScroll) = DLL("COMCTL32.dll", "int LBItemFromPt(void*, void*, bool)")
# 呼び出し: LBItemFromPt(hLB, pt, bAutoScroll)
# hLB : HWND -> "void*"
# pt : POINT -> "void*"
# bAutoScroll : BOOL -> "bool"
# 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)。