ImmRequestMessageW

// IMM32.dll  (Unicode / -W)
#include <windows.h>

LRESULT ImmRequestMessageW(
    HIMC param0,
    WPARAM param1,
    LPARAM param2
);

<DllImport("IMM32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ImmRequestMessageW(
    param0 As IntPtr,   ' HIMC
    param1 As UIntPtr,   ' WPARAM
    param2 As IntPtr   ' LPARAM
) As IntPtr
End Function

' param0 : HIMC
' param1 : WPARAM
' param2 : LPARAM
Declare PtrSafe Function ImmRequestMessageW Lib "imm32" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr) As LongPtr
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ImmRequestMessageW = ctypes.windll.imm32.ImmRequestMessageW
ImmRequestMessageW.restype = ctypes.c_ssize_t
ImmRequestMessageW.argtypes = [
    wintypes.HANDLE,  # param0 : HIMC
    ctypes.c_size_t,  # param1 : WPARAM
    ctypes.c_ssize_t,  # param2 : LPARAM
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IMM32.dll')
ImmRequestMessageW = Fiddle::Function.new(
  lib['ImmRequestMessageW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : HIMC
    Fiddle::TYPE_UINTPTR_T,  # param1 : WPARAM
    Fiddle::TYPE_INTPTR_T,  # param2 : LPARAM
  ],
  Fiddle::TYPE_INTPTR_T)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "imm32")]
extern "system" {
    fn ImmRequestMessageW(
        param0: *mut core::ffi::c_void,  // HIMC
        param1: usize,  // WPARAM
        param2: isize  // LPARAM
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IMM32.dll", CharSet = CharSet.Unicode)]
public static extern IntPtr ImmRequestMessageW(IntPtr param0, UIntPtr param1, IntPtr param2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IMM32_ImmRequestMessageW' -Namespace Win32 -PassThru
# $api::ImmRequestMessageW(param0, param1, param2)

#uselib "IMM32.dll"
#func global ImmRequestMessageW "ImmRequestMessageW" wptr, wptr, wptr
; ImmRequestMessageW param0, param1, param2   ; 戻り値は stat
; param0 : HIMC -> "wptr"
; param1 : WPARAM -> "wptr"
; param2 : LPARAM -> "wptr"
; ※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 "IMM32.dll"
#cfunc global ImmRequestMessageW "ImmRequestMessageW" sptr, sptr, sptr
; res = ImmRequestMessageW(param0, param1, param2)
; param0 : HIMC -> "sptr"
; param1 : WPARAM -> "sptr"
; param2 : LPARAM -> "sptr"

; LRESULT ImmRequestMessageW(HIMC param0, WPARAM param1, LPARAM param2)
#uselib "IMM32.dll"
#cfunc global ImmRequestMessageW "ImmRequestMessageW" intptr, intptr, intptr
; res = ImmRequestMessageW(param0, param1, param2)
; param0 : HIMC -> "intptr"
; param1 : WPARAM -> "intptr"
; param2 : LPARAM -> "intptr"

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

var (
	imm32 = windows.NewLazySystemDLL("IMM32.dll")
	procImmRequestMessageW = imm32.NewProc("ImmRequestMessageW")
)

// param0 (HIMC), param1 (WPARAM), param2 (LPARAM)
r1, _, err := procImmRequestMessageW.Call(
	uintptr(param0),
	uintptr(param1),
	uintptr(param2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LRESULT

function ImmRequestMessageW(
  param0: THandle;   // HIMC
  param1: NativeUInt;   // WPARAM
  param2: NativeInt   // LPARAM
): NativeInt; stdcall;
  external 'IMM32.dll' name 'ImmRequestMessageW';

result := DllCall("IMM32\ImmRequestMessageW"
    , "Ptr", param0   ; HIMC
    , "UPtr", param1   ; WPARAM
    , "Ptr", param2   ; LPARAM
    , "Ptr")   ; return: LRESULT

●ImmRequestMessageW(param0, param1, param2) = DLL("IMM32.dll", "int ImmRequestMessageW(void*, int, int)")
# 呼び出し: ImmRequestMessageW(param0, param1, param2)
# param0 : HIMC -> "void*"
# param1 : WPARAM -> "int"
# param2 : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。