GdipGetImageHorizontalResolution

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

Status GdipGetImageHorizontalResolution(
    GpImage* image,
    FLOAT* resolution
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipGetImageHorizontalResolution(
    image As IntPtr,   ' GpImage* in/out
    ByRef resolution As Single   ' FLOAT* in/out
) As Integer
End Function

' image : GpImage* in/out
' resolution : FLOAT* in/out
Declare PtrSafe Function GdipGetImageHorizontalResolution Lib "gdiplus" ( _
    ByVal image As LongPtr, _
    ByRef resolution As Single) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GdipGetImageHorizontalResolution = ctypes.windll.gdiplus.GdipGetImageHorizontalResolution
GdipGetImageHorizontalResolution.restype = ctypes.c_int
GdipGetImageHorizontalResolution.argtypes = [
    ctypes.c_void_p,  # image : GpImage* in/out
    ctypes.POINTER(ctypes.c_float),  # resolution : FLOAT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipGetImageHorizontalResolution = Fiddle::Function.new(
  lib['GdipGetImageHorizontalResolution'],
  [
    Fiddle::TYPE_VOIDP,  # image : GpImage* in/out
    Fiddle::TYPE_VOIDP,  # resolution : FLOAT* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipGetImageHorizontalResolution(
        image: *mut GpImage,  // GpImage* in/out
        resolution: *mut f32  // FLOAT* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipGetImageHorizontalResolution(IntPtr image, ref float resolution);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipGetImageHorizontalResolution' -Namespace Win32 -PassThru
# $api::GdipGetImageHorizontalResolution(image, resolution)

#uselib "gdiplus.dll"
#func global GdipGetImageHorizontalResolution "GdipGetImageHorizontalResolution" sptr, sptr
; GdipGetImageHorizontalResolution varptr(image), varptr(resolution)   ; 戻り値は stat
; image : GpImage* in/out -> "sptr"
; resolution : FLOAT* 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。

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

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipGetImageHorizontalResolution = gdiplus.NewProc("GdipGetImageHorizontalResolution")
)

// image (GpImage* in/out), resolution (FLOAT* in/out)
r1, _, err := procGdipGetImageHorizontalResolution.Call(
	uintptr(image),
	uintptr(resolution),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipGetImageHorizontalResolution(
  image: Pointer;   // GpImage* in/out
  resolution: Pointer   // FLOAT* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetImageHorizontalResolution';

result := DllCall("gdiplus\GdipGetImageHorizontalResolution"
    , "Ptr", image   ; GpImage* in/out
    , "Ptr", resolution   ; FLOAT* in/out
    , "Int")   ; return: Status

●GdipGetImageHorizontalResolution(image, resolution) = DLL("gdiplus.dll", "int GdipGetImageHorizontalResolution(void*, void*)")
# 呼び出し: GdipGetImageHorizontalResolution(image, resolution)
# image : GpImage* in/out -> "void*"
# resolution : FLOAT* 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)。

const std = @import("std");

extern "gdiplus" fn GdipGetImageHorizontalResolution(
    image: [*c]GpImage, // GpImage* in/out
    resolution: [*c]f32 // FLOAT* in/out
) callconv(std.os.windows.WINAPI) i32;

proc GdipGetImageHorizontalResolution(
    image: ptr GpImage,  # GpImage* in/out
    resolution: ptr float32  # FLOAT* in/out
): int32 {.importc: "GdipGetImageHorizontalResolution", stdcall, dynlib: "gdiplus.dll".}

pragma(lib, "gdiplus");
extern(Windows)
int GdipGetImageHorizontalResolution(
    GpImage* image,   // GpImage* in/out
    float* resolution   // FLOAT* in/out
);

ccall((:GdipGetImageHorizontalResolution, "gdiplus.dll"), stdcall, Int32,
      (Ptr{GpImage}, Ptr{Float32}),
      image, resolution)
# image : GpImage* in/out -> Ptr{GpImage}
# resolution : FLOAT* in/out -> Ptr{Float32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GdipGetImageHorizontalResolution(
    void* image,
    float* resolution);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipGetImageHorizontalResolution(image, resolution)
-- image : GpImage* in/out
-- resolution : FLOAT* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('gdiplus.dll');
const GdipGetImageHorizontalResolution = lib.func('__stdcall', 'GdipGetImageHorizontalResolution', 'int32_t', ['void *', 'float *']);
// GdipGetImageHorizontalResolution(image, resolution)
// image : GpImage* in/out -> 'void *'
// resolution : FLOAT* in/out -> 'float *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("gdiplus.dll", {
  GdipGetImageHorizontalResolution: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GdipGetImageHorizontalResolution(image, resolution)
// image : GpImage* in/out -> "pointer"
// resolution : FLOAT* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t GdipGetImageHorizontalResolution(
    void* image,
    float* resolution);
C, "gdiplus.dll");
// $ffi->GdipGetImageHorizontalResolution(image, resolution);
// image : GpImage* in/out
// resolution : FLOAT* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Gdiplus extends StdCallLibrary {
    Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
    int GdipGetImageHorizontalResolution(
        Pointer image,   // GpImage* in/out
        FloatByReference resolution   // FLOAT* in/out
    );
}

@[Link("gdiplus")]
lib Libgdiplus
  fun GdipGetImageHorizontalResolution = GdipGetImageHorizontalResolution(
    image : GpImage*,   # GpImage* in/out
    resolution : Float32*   # FLOAT* in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GdipGetImageHorizontalResolutionNative = Int32 Function(Pointer<Void>, Pointer<Float>);
typedef GdipGetImageHorizontalResolutionDart = int Function(Pointer<Void>, Pointer<Float>);
final GdipGetImageHorizontalResolution = DynamicLibrary.open('gdiplus.dll')
    .lookupFunction<GdipGetImageHorizontalResolutionNative, GdipGetImageHorizontalResolutionDart>('GdipGetImageHorizontalResolution');
// image : GpImage* in/out -> Pointer<Void>
// resolution : FLOAT* in/out -> Pointer<Float>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GdipGetImageHorizontalResolution(
  image: Pointer;   // GpImage* in/out
  resolution: Pointer   // FLOAT* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetImageHorizontalResolution';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GdipGetImageHorizontalResolution"
  c_GdipGetImageHorizontalResolution :: Ptr () -> Ptr CFloat -> IO Int32
-- image : GpImage* in/out -> Ptr ()
-- resolution : FLOAT* in/out -> Ptr CFloat
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let gdipgetimagehorizontalresolution =
  foreign "GdipGetImageHorizontalResolution"
    ((ptr void) @-> (ptr float) @-> returning int32_t)
(* image : GpImage* in/out -> (ptr void) *)
(* resolution : FLOAT* in/out -> (ptr float) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library gdiplus (t "gdiplus.dll"))
(cffi:use-foreign-library gdiplus)

(cffi:defcfun ("GdipGetImageHorizontalResolution" gdip-get-image-horizontal-resolution :convention :stdcall) :int32
  (image :pointer)   ; GpImage* in/out
  (resolution :pointer))   ; FLOAT* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GdipGetImageHorizontalResolution = Win32::API::More->new('gdiplus',
    'int GdipGetImageHorizontalResolution(LPVOID image, LPVOID resolution)');
# my $ret = $GdipGetImageHorizontalResolution->Call($image, $resolution);
# image : GpImage* in/out -> LPVOID
# resolution : FLOAT* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。