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IsClipboardFormatAvailable

関数

指定したデータ形式がクリップボードに存在するか調べる。

DLLUSER32.dll呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降

シグネチャ

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

BOOL IsClipboardFormatAvailable(
    DWORD format
);

パラメーター

名前	型	方向
format	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL IsClipboardFormatAvailable(
    DWORD format
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool IsClipboardFormatAvailable(
    uint format   // DWORD
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function IsClipboardFormatAvailable(
    format As UInteger   ' DWORD
) As Boolean
End Function

' format : DWORD
Declare PtrSafe Function IsClipboardFormatAvailable Lib "user32" ( _
    ByVal format 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

IsClipboardFormatAvailable = ctypes.windll.user32.IsClipboardFormatAvailable
IsClipboardFormatAvailable.restype = wintypes.BOOL
IsClipboardFormatAvailable.argtypes = [
    wintypes.DWORD,  # format : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
IsClipboardFormatAvailable = Fiddle::Function.new(
  lib['IsClipboardFormatAvailable'],
  [
    -Fiddle::TYPE_INT,  # format : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn IsClipboardFormatAvailable(
        format: u32  // DWORD
    ) -> 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 IsClipboardFormatAvailable(uint format);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_IsClipboardFormatAvailable' -Namespace Win32 -PassThru
# $api::IsClipboardFormatAvailable(format)

#uselib "USER32.dll"
#func global IsClipboardFormatAvailable "IsClipboardFormatAvailable" sptr
; IsClipboardFormatAvailable format   ; 戻り値は stat
; format : DWORD -> "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 IsClipboardFormatAvailable "IsClipboardFormatAvailable" int
; res = IsClipboardFormatAvailable(format)
; format : DWORD -> "int"

; BOOL IsClipboardFormatAvailable(DWORD format)
#uselib "USER32.dll"
#cfunc global IsClipboardFormatAvailable "IsClipboardFormatAvailable" int
; res = IsClipboardFormatAvailable(format)
; format : DWORD -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procIsClipboardFormatAvailable = user32.NewProc("IsClipboardFormatAvailable")
)

// format (DWORD)
r1, _, err := procIsClipboardFormatAvailable.Call(
	uintptr(format),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function IsClipboardFormatAvailable(
  format: DWORD   // DWORD
): BOOL; stdcall;
  external 'USER32.dll' name 'IsClipboardFormatAvailable';

result := DllCall("USER32\IsClipboardFormatAvailable"
    , "UInt", format   ; DWORD
    , "Int")   ; return: BOOL

●IsClipboardFormatAvailable(format) = DLL("USER32.dll", "bool IsClipboardFormatAvailable(dword)")
# 呼び出し: IsClipboardFormatAvailable(format)
# format : DWORD -> "dword"
# 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)。