GetComboBoxInfo

関数

コンボボックスの内部構成情報を取得する。

DLLUSER32.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

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

BOOL GetComboBoxInfo(
    HWND hwndCombo,
    COMBOBOXINFO* pcbi
);

パラメーター

名前	型	方向
hwndCombo	HWND	in
pcbi	COMBOBOXINFO*	inout

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL GetComboBoxInfo(
    HWND hwndCombo,
    COMBOBOXINFO* pcbi
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool GetComboBoxInfo(
    IntPtr hwndCombo,   // HWND
    IntPtr pcbi   // COMBOBOXINFO* in/out
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetComboBoxInfo(
    hwndCombo As IntPtr,   ' HWND
    pcbi As IntPtr   ' COMBOBOXINFO* in/out
) As Boolean
End Function

' hwndCombo : HWND
' pcbi : COMBOBOXINFO* in/out
Declare PtrSafe Function GetComboBoxInfo Lib "user32" ( _
    ByVal hwndCombo As LongPtr, _
    ByVal pcbi 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

GetComboBoxInfo = ctypes.windll.user32.GetComboBoxInfo
GetComboBoxInfo.restype = wintypes.BOOL
GetComboBoxInfo.argtypes = [
    wintypes.HANDLE,  # hwndCombo : HWND
    ctypes.c_void_p,  # pcbi : COMBOBOXINFO* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetComboBoxInfo = Fiddle::Function.new(
  lib['GetComboBoxInfo'],
  [
    Fiddle::TYPE_VOIDP,  # hwndCombo : HWND
    Fiddle::TYPE_VOIDP,  # pcbi : COMBOBOXINFO* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn GetComboBoxInfo(
        hwndCombo: *mut core::ffi::c_void,  // HWND
        pcbi: *mut COMBOBOXINFO  // COMBOBOXINFO* in/out
    ) -> 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 GetComboBoxInfo(IntPtr hwndCombo, IntPtr pcbi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetComboBoxInfo' -Namespace Win32 -PassThru
# $api::GetComboBoxInfo(hwndCombo, pcbi)

#uselib "USER32.dll"
#func global GetComboBoxInfo "GetComboBoxInfo" sptr, sptr
; GetComboBoxInfo hwndCombo, varptr(pcbi)   ; 戻り値は stat
; hwndCombo : HWND -> "sptr"
; pcbi : COMBOBOXINFO* in/out -> "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。

出力引数:

#uselib "USER32.dll"
#cfunc global GetComboBoxInfo "GetComboBoxInfo" sptr, var
; res = GetComboBoxInfo(hwndCombo, pcbi)
; hwndCombo : HWND -> "sptr"
; pcbi : COMBOBOXINFO* in/out -> "var"
; ※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。#uselib "USER32.dll"
#cfunc global GetComboBoxInfo "GetComboBoxInfo" sptr, sptr
; res = GetComboBoxInfo(hwndCombo, varptr(pcbi))
; hwndCombo : HWND -> "sptr"
; pcbi : COMBOBOXINFO* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; BOOL GetComboBoxInfo(HWND hwndCombo, COMBOBOXINFO* pcbi)
#uselib "USER32.dll"
#cfunc global GetComboBoxInfo "GetComboBoxInfo" intptr, var
; res = GetComboBoxInfo(hwndCombo, pcbi)
; hwndCombo : HWND -> "intptr"
; pcbi : COMBOBOXINFO* in/out -> "var"
; ※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 GetComboBoxInfo(HWND hwndCombo, COMBOBOXINFO* pcbi)
#uselib "USER32.dll"
#cfunc global GetComboBoxInfo "GetComboBoxInfo" intptr, intptr
; res = GetComboBoxInfo(hwndCombo, varptr(pcbi))
; hwndCombo : HWND -> "intptr"
; pcbi : COMBOBOXINFO* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetComboBoxInfo = user32.NewProc("GetComboBoxInfo")
)

// hwndCombo (HWND), pcbi (COMBOBOXINFO* in/out)
r1, _, err := procGetComboBoxInfo.Call(
	uintptr(hwndCombo),
	uintptr(pcbi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetComboBoxInfo(
  hwndCombo: THandle;   // HWND
  pcbi: Pointer   // COMBOBOXINFO* in/out
): BOOL; stdcall;
  external 'USER32.dll' name 'GetComboBoxInfo';

result := DllCall("USER32\GetComboBoxInfo"
    , "Ptr", hwndCombo   ; HWND
    , "Ptr", pcbi   ; COMBOBOXINFO* in/out
    , "Int")   ; return: BOOL

●GetComboBoxInfo(hwndCombo, pcbi) = DLL("USER32.dll", "bool GetComboBoxInfo(void*, void*)")
# 呼び出し: GetComboBoxInfo(hwndCombo, pcbi)
# hwndCombo : HWND -> "void*"
# pcbi : COMBOBOXINFO* in/out -> "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)。