SetMessageExtraInfo

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

LPARAM SetMessageExtraInfo(
    LPARAM lParam
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function SetMessageExtraInfo(
    lParam As IntPtr   ' LPARAM
) As IntPtr
End Function

' lParam : LPARAM
Declare PtrSafe Function SetMessageExtraInfo Lib "user32" ( _
    ByVal lParam 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

SetMessageExtraInfo = ctypes.windll.user32.SetMessageExtraInfo
SetMessageExtraInfo.restype = ctypes.c_ssize_t
SetMessageExtraInfo.argtypes = [
    ctypes.c_ssize_t,  # lParam : LPARAM
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
SetMessageExtraInfo = Fiddle::Function.new(
  lib['SetMessageExtraInfo'],
  [
    Fiddle::TYPE_INTPTR_T,  # lParam : LPARAM
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "user32")]
extern "system" {
    fn SetMessageExtraInfo(
        lParam: isize  // LPARAM
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern IntPtr SetMessageExtraInfo(IntPtr lParam);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_SetMessageExtraInfo' -Namespace Win32 -PassThru
# $api::SetMessageExtraInfo(lParam)

#uselib "USER32.dll"
#func global SetMessageExtraInfo "SetMessageExtraInfo" sptr
; SetMessageExtraInfo lParam   ; 戻り値は stat
; lParam : LPARAM -> "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 SetMessageExtraInfo "SetMessageExtraInfo" sptr
; res = SetMessageExtraInfo(lParam)
; lParam : LPARAM -> "sptr"

; LPARAM SetMessageExtraInfo(LPARAM lParam)
#uselib "USER32.dll"
#cfunc global SetMessageExtraInfo "SetMessageExtraInfo" intptr
; res = SetMessageExtraInfo(lParam)
; lParam : LPARAM -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procSetMessageExtraInfo = user32.NewProc("SetMessageExtraInfo")
)

// lParam (LPARAM)
r1, _, err := procSetMessageExtraInfo.Call(
	uintptr(lParam),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPARAM

function SetMessageExtraInfo(
  lParam: NativeInt   // LPARAM
): NativeInt; stdcall;
  external 'USER32.dll' name 'SetMessageExtraInfo';

result := DllCall("USER32\SetMessageExtraInfo"
    , "Ptr", lParam   ; LPARAM
    , "Ptr")   ; return: LPARAM

●SetMessageExtraInfo(lParam) = DLL("USER32.dll", "int SetMessageExtraInfo(int)")
# 呼び出し: SetMessageExtraInfo(lParam)
# lParam : LPARAM -> "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)。