CreateDCA

// GDI32.dll  (ANSI / -A)
#include <windows.h>

HDC CreateDCA(
    LPCSTR pwszDriver,   // optional
    LPCSTR pwszDevice,   // optional
    LPCSTR pszPort,   // optional
    const DEVMODEA* pdm   // optional
);

<DllImport("GDI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function CreateDCA(
    <MarshalAs(UnmanagedType.LPStr)> pwszDriver As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pwszDevice As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszPort As String,   ' LPCSTR optional
    pdm As IntPtr   ' DEVMODEA* optional
) As IntPtr
End Function

' pwszDriver : LPCSTR optional
' pwszDevice : LPCSTR optional
' pszPort : LPCSTR optional
' pdm : DEVMODEA* optional
Declare PtrSafe Function CreateDCA Lib "gdi32" ( _
    ByVal pwszDriver As String, _
    ByVal pwszDevice As String, _
    ByVal pszPort As String, _
    ByVal pdm 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

CreateDCA = ctypes.windll.gdi32.CreateDCA
CreateDCA.restype = ctypes.c_void_p
CreateDCA.argtypes = [
    wintypes.LPCSTR,  # pwszDriver : LPCSTR optional
    wintypes.LPCSTR,  # pwszDevice : LPCSTR optional
    wintypes.LPCSTR,  # pszPort : LPCSTR optional
    ctypes.c_void_p,  # pdm : DEVMODEA* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
CreateDCA = Fiddle::Function.new(
  lib['CreateDCA'],
  [
    Fiddle::TYPE_VOIDP,  # pwszDriver : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pwszDevice : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszPort : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pdm : DEVMODEA* optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "gdi32")]
extern "system" {
    fn CreateDCA(
        pwszDriver: *const u8,  // LPCSTR optional
        pwszDevice: *const u8,  // LPCSTR optional
        pszPort: *const u8,  // LPCSTR optional
        pdm: *const DEVMODEA  // DEVMODEA* optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll", CharSet = CharSet.Ansi)]
public static extern IntPtr CreateDCA([MarshalAs(UnmanagedType.LPStr)] string pwszDriver, [MarshalAs(UnmanagedType.LPStr)] string pwszDevice, [MarshalAs(UnmanagedType.LPStr)] string pszPort, IntPtr pdm);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_CreateDCA' -Namespace Win32 -PassThru
# $api::CreateDCA(pwszDriver, pwszDevice, pszPort, pdm)

#uselib "GDI32.dll"
#func global CreateDCA "CreateDCA" sptr, sptr, sptr, sptr
; CreateDCA pwszDriver, pwszDevice, pszPort, varptr(pdm)   ; 戻り値は stat
; pwszDriver : LPCSTR optional -> "sptr"
; pwszDevice : LPCSTR optional -> "sptr"
; pszPort : LPCSTR optional -> "sptr"
; pdm : DEVMODEA* optional -> "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 "GDI32.dll"
#cfunc global CreateDCA "CreateDCA" str, str, str, var
; res = CreateDCA(pwszDriver, pwszDevice, pszPort, pdm)
; pwszDriver : LPCSTR optional -> "str"
; pwszDevice : LPCSTR optional -> "str"
; pszPort : LPCSTR optional -> "str"
; pdm : DEVMODEA* optional -> "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。

; HDC CreateDCA(LPCSTR pwszDriver, LPCSTR pwszDevice, LPCSTR pszPort, DEVMODEA* pdm)
#uselib "GDI32.dll"
#cfunc global CreateDCA "CreateDCA" str, str, str, var
; res = CreateDCA(pwszDriver, pwszDevice, pszPort, pdm)
; pwszDriver : LPCSTR optional -> "str"
; pwszDevice : LPCSTR optional -> "str"
; pszPort : LPCSTR optional -> "str"
; pdm : DEVMODEA* optional -> "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。

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procCreateDCA = gdi32.NewProc("CreateDCA")
)

// pwszDriver (LPCSTR optional), pwszDevice (LPCSTR optional), pszPort (LPCSTR optional), pdm (DEVMODEA* optional)
r1, _, err := procCreateDCA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pwszDriver))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pwszDevice))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszPort))),
	uintptr(pdm),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HDC

function CreateDCA(
  pwszDriver: PAnsiChar;   // LPCSTR optional
  pwszDevice: PAnsiChar;   // LPCSTR optional
  pszPort: PAnsiChar;   // LPCSTR optional
  pdm: Pointer   // DEVMODEA* optional
): THandle; stdcall;
  external 'GDI32.dll' name 'CreateDCA';

result := DllCall("GDI32\CreateDCA"
    , "AStr", pwszDriver   ; LPCSTR optional
    , "AStr", pwszDevice   ; LPCSTR optional
    , "AStr", pszPort   ; LPCSTR optional
    , "Ptr", pdm   ; DEVMODEA* optional
    , "Ptr")   ; return: HDC

●CreateDCA(pwszDriver, pwszDevice, pszPort, pdm) = DLL("GDI32.dll", "void* CreateDCA(char*, char*, char*, void*)")
# 呼び出し: CreateDCA(pwszDriver, pwszDevice, pszPort, pdm)
# pwszDriver : LPCSTR optional -> "char*"
# pwszDevice : LPCSTR optional -> "char*"
# pszPort : LPCSTR optional -> "char*"
# pdm : DEVMODEA* optional -> "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)。