Escape

// GDI32.dll
#include <windows.h>

INT Escape(
    HDC hdc,
    INT iEscape,
    INT cjIn,
    LPCSTR pvIn,   // optional
    void* pvOut   // optional
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function Escape(
    hdc As IntPtr,   ' HDC
    iEscape As Integer,   ' INT
    cjIn As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> pvIn As String,   ' LPCSTR optional
    pvOut As IntPtr   ' void* optional, out
) As Integer
End Function

' hdc : HDC
' iEscape : INT
' cjIn : INT
' pvIn : LPCSTR optional
' pvOut : void* optional, out
Declare PtrSafe Function Escape Lib "gdi32" ( _
    ByVal hdc As LongPtr, _
    ByVal iEscape As Long, _
    ByVal cjIn As Long, _
    ByVal pvIn As String, _
    ByVal pvOut 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

Escape = ctypes.windll.gdi32.Escape
Escape.restype = ctypes.c_int
Escape.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    ctypes.c_int,  # iEscape : INT
    ctypes.c_int,  # cjIn : INT
    wintypes.LPCSTR,  # pvIn : LPCSTR optional
    ctypes.POINTER(None),  # pvOut : void* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
Escape = Fiddle::Function.new(
  lib['Escape'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_INT,  # iEscape : INT
    Fiddle::TYPE_INT,  # cjIn : INT
    Fiddle::TYPE_VOIDP,  # pvIn : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pvOut : void* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn Escape(
        hdc: *mut core::ffi::c_void,  // HDC
        iEscape: i32,  // INT
        cjIn: i32,  // INT
        pvIn: *const u8,  // LPCSTR optional
        pvOut: *mut ()  // void* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll")]
public static extern int Escape(IntPtr hdc, int iEscape, int cjIn, [MarshalAs(UnmanagedType.LPStr)] string pvIn, IntPtr pvOut);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_Escape' -Namespace Win32 -PassThru
# $api::Escape(hdc, iEscape, cjIn, pvIn, pvOut)

#uselib "GDI32.dll"
#func global Escape "Escape" sptr, sptr, sptr, sptr, sptr
; Escape hdc, iEscape, cjIn, pvIn, pvOut   ; 戻り値は stat
; hdc : HDC -> "sptr"
; iEscape : INT -> "sptr"
; cjIn : INT -> "sptr"
; pvIn : LPCSTR optional -> "sptr"
; pvOut : void* optional, 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。

#uselib "GDI32.dll"
#cfunc global Escape "Escape" sptr, int, int, str, sptr
; res = Escape(hdc, iEscape, cjIn, pvIn, pvOut)
; hdc : HDC -> "sptr"
; iEscape : INT -> "int"
; cjIn : INT -> "int"
; pvIn : LPCSTR optional -> "str"
; pvOut : void* optional, out -> "sptr"

; INT Escape(HDC hdc, INT iEscape, INT cjIn, LPCSTR pvIn, void* pvOut)
#uselib "GDI32.dll"
#cfunc global Escape "Escape" intptr, int, int, str, intptr
; res = Escape(hdc, iEscape, cjIn, pvIn, pvOut)
; hdc : HDC -> "intptr"
; iEscape : INT -> "int"
; cjIn : INT -> "int"
; pvIn : LPCSTR optional -> "str"
; pvOut : void* optional, out -> "intptr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procEscape = gdi32.NewProc("Escape")
)

// hdc (HDC), iEscape (INT), cjIn (INT), pvIn (LPCSTR optional), pvOut (void* optional, out)
r1, _, err := procEscape.Call(
	uintptr(hdc),
	uintptr(iEscape),
	uintptr(cjIn),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pvIn))),
	uintptr(pvOut),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function Escape(
  hdc: THandle;   // HDC
  iEscape: Integer;   // INT
  cjIn: Integer;   // INT
  pvIn: PAnsiChar;   // LPCSTR optional
  pvOut: Pointer   // void* optional, out
): Integer; stdcall;
  external 'GDI32.dll' name 'Escape';

result := DllCall("GDI32\Escape"
    , "Ptr", hdc   ; HDC
    , "Int", iEscape   ; INT
    , "Int", cjIn   ; INT
    , "AStr", pvIn   ; LPCSTR optional
    , "Ptr", pvOut   ; void* optional, out
    , "Int")   ; return: INT

●Escape(hdc, iEscape, cjIn, pvIn, pvOut) = DLL("GDI32.dll", "int Escape(void*, int, int, char*, void*)")
# 呼び出し: Escape(hdc, iEscape, cjIn, pvIn, pvOut)
# hdc : HDC -> "void*"
# iEscape : INT -> "int"
# cjIn : INT -> "int"
# pvIn : LPCSTR optional -> "char*"
# pvOut : void* optional, 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)。