OffsetRect

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

BOOL OffsetRect(
    RECT* lprc,
    INT dx,
    INT dy
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function OffsetRect(
    lprc As IntPtr,   ' RECT* in/out
    dx As Integer,   ' INT
    dy As Integer   ' INT
) As Boolean
End Function

' lprc : RECT* in/out
' dx : INT
' dy : INT
Declare PtrSafe Function OffsetRect Lib "user32" ( _
    ByVal lprc As LongPtr, _
    ByVal dx As Long, _
    ByVal dy 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

OffsetRect = ctypes.windll.user32.OffsetRect
OffsetRect.restype = wintypes.BOOL
OffsetRect.argtypes = [
    ctypes.c_void_p,  # lprc : RECT* in/out
    ctypes.c_int,  # dx : INT
    ctypes.c_int,  # dy : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
OffsetRect = Fiddle::Function.new(
  lib['OffsetRect'],
  [
    Fiddle::TYPE_VOIDP,  # lprc : RECT* in/out
    Fiddle::TYPE_INT,  # dx : INT
    Fiddle::TYPE_INT,  # dy : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn OffsetRect(
        lprc: *mut RECT,  // RECT* in/out
        dx: i32,  // INT
        dy: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll")]
public static extern bool OffsetRect(IntPtr lprc, int dx, int dy);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_OffsetRect' -Namespace Win32 -PassThru
# $api::OffsetRect(lprc, dx, dy)

#uselib "USER32.dll"
#func global OffsetRect "OffsetRect" sptr, sptr, sptr
; OffsetRect varptr(lprc), dx, dy   ; 戻り値は stat
; lprc : RECT* in/out -> "sptr"
; dx : INT -> "sptr"
; dy : INT -> "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 OffsetRect "OffsetRect" var, int, int
; res = OffsetRect(lprc, dx, dy)
; lprc : RECT* in/out -> "var"
; dx : INT -> "int"
; dy : INT -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL OffsetRect(RECT* lprc, INT dx, INT dy)
#uselib "USER32.dll"
#cfunc global OffsetRect "OffsetRect" var, int, int
; res = OffsetRect(lprc, dx, dy)
; lprc : RECT* in/out -> "var"
; dx : INT -> "int"
; dy : INT -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procOffsetRect = user32.NewProc("OffsetRect")
)

// lprc (RECT* in/out), dx (INT), dy (INT)
r1, _, err := procOffsetRect.Call(
	uintptr(lprc),
	uintptr(dx),
	uintptr(dy),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function OffsetRect(
  lprc: Pointer;   // RECT* in/out
  dx: Integer;   // INT
  dy: Integer   // INT
): BOOL; stdcall;
  external 'USER32.dll' name 'OffsetRect';

result := DllCall("USER32\OffsetRect"
    , "Ptr", lprc   ; RECT* in/out
    , "Int", dx   ; INT
    , "Int", dy   ; INT
    , "Int")   ; return: BOOL

●OffsetRect(lprc, dx, dy) = DLL("USER32.dll", "bool OffsetRect(void*, int, int)")
# 呼び出し: OffsetRect(lprc, dx, dy)
# lprc : RECT* in/out -> "void*"
# dx : INT -> "int"
# dy : INT -> "int"
# 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)。