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IsValidDevmodeA

関数

DEVMODE構造体が有効かどうかを検証する。

DLLwinspool.drv文字セットANSI (-A)呼出規約winapi

シグネチャ

// winspool.drv  (ANSI / -A)
#include <windows.h>

BOOL IsValidDevmodeA(
    DEVMODEA* pDevmode,   // optional
    UINT_PTR DevmodeSize
);

パラメーター

名前	型	方向
pDevmode	DEVMODEA*	inoptional
DevmodeSize	UINT_PTR	in

戻り値の型: BOOL

各言語での呼び出し定義

// winspool.drv  (ANSI / -A)
#include <windows.h>

BOOL IsValidDevmodeA(
    DEVMODEA* pDevmode,   // optional
    UINT_PTR DevmodeSize
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern bool IsValidDevmodeA(
    IntPtr pDevmode,   // DEVMODEA* optional
    UIntPtr DevmodeSize   // UINT_PTR
);

<DllImport("winspool.drv", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function IsValidDevmodeA(
    pDevmode As IntPtr,   ' DEVMODEA* optional
    DevmodeSize As UIntPtr   ' UINT_PTR
) As Boolean
End Function

' pDevmode : DEVMODEA* optional
' DevmodeSize : UINT_PTR
Declare PtrSafe Function IsValidDevmodeA Lib "winspool.drv" ( _
    ByVal pDevmode As LongPtr, _
    ByVal DevmodeSize 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

IsValidDevmodeA = ctypes.windll.LoadLibrary("winspool.drv").IsValidDevmodeA
IsValidDevmodeA.restype = wintypes.BOOL
IsValidDevmodeA.argtypes = [
    ctypes.c_void_p,  # pDevmode : DEVMODEA* optional
    ctypes.c_size_t,  # DevmodeSize : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
IsValidDevmodeA = Fiddle::Function.new(
  lib['IsValidDevmodeA'],
  [
    Fiddle::TYPE_VOIDP,  # pDevmode : DEVMODEA* optional
    Fiddle::TYPE_UINTPTR_T,  # DevmodeSize : UINT_PTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn IsValidDevmodeA(
        pDevmode: *mut DEVMODEA,  // DEVMODEA* optional
        DevmodeSize: usize  // UINT_PTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv", CharSet = CharSet.Ansi)]
public static extern bool IsValidDevmodeA(IntPtr pDevmode, UIntPtr DevmodeSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_IsValidDevmodeA' -Namespace Win32 -PassThru
# $api::IsValidDevmodeA(pDevmode, DevmodeSize)

#uselib "winspool.drv"
#func global IsValidDevmodeA "IsValidDevmodeA" sptr, sptr
; IsValidDevmodeA varptr(pDevmode), DevmodeSize   ; 戻り値は stat
; pDevmode : DEVMODEA* optional -> "sptr"
; DevmodeSize : UINT_PTR -> "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 "winspool.drv"
#cfunc global IsValidDevmodeA "IsValidDevmodeA" var, sptr
; res = IsValidDevmodeA(pDevmode, DevmodeSize)
; pDevmode : DEVMODEA* optional -> "var"
; DevmodeSize : UINT_PTR -> "sptr"
; ※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 "winspool.drv"
#cfunc global IsValidDevmodeA "IsValidDevmodeA" sptr, sptr
; res = IsValidDevmodeA(varptr(pDevmode), DevmodeSize)
; pDevmode : DEVMODEA* optional -> "sptr"
; DevmodeSize : UINT_PTR -> "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 IsValidDevmodeA(DEVMODEA* pDevmode, UINT_PTR DevmodeSize)
#uselib "winspool.drv"
#cfunc global IsValidDevmodeA "IsValidDevmodeA" var, intptr
; res = IsValidDevmodeA(pDevmode, DevmodeSize)
; pDevmode : DEVMODEA* optional -> "var"
; DevmodeSize : UINT_PTR -> "intptr"
; ※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 IsValidDevmodeA(DEVMODEA* pDevmode, UINT_PTR DevmodeSize)
#uselib "winspool.drv"
#cfunc global IsValidDevmodeA "IsValidDevmodeA" intptr, intptr
; res = IsValidDevmodeA(varptr(pDevmode), DevmodeSize)
; pDevmode : DEVMODEA* optional -> "intptr"
; DevmodeSize : UINT_PTR -> "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 (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procIsValidDevmodeA = winspool_drv.NewProc("IsValidDevmodeA")
)

// pDevmode (DEVMODEA* optional), DevmodeSize (UINT_PTR)
r1, _, err := procIsValidDevmodeA.Call(
	uintptr(pDevmode),
	uintptr(DevmodeSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function IsValidDevmodeA(
  pDevmode: Pointer;   // DEVMODEA* optional
  DevmodeSize: NativeUInt   // UINT_PTR
): BOOL; stdcall;
  external 'winspool.drv' name 'IsValidDevmodeA';

result := DllCall("winspool.drv\IsValidDevmodeA"
    , "Ptr", pDevmode   ; DEVMODEA* optional
    , "UPtr", DevmodeSize   ; UINT_PTR
    , "Int")   ; return: BOOL

●IsValidDevmodeA(pDevmode, DevmodeSize) = DLL("winspool.drv", "bool IsValidDevmodeA(void*, int)")
# 呼び出し: IsValidDevmodeA(pDevmode, DevmodeSize)
# pDevmode : DEVMODEA* optional -> "void*"
# DevmodeSize : UINT_PTR -> "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)。