GdipDrawLineI

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

Status GdipDrawLineI(
    GpGraphics* graphics,
    GpPen* pen,
    INT x1,
    INT y1,
    INT x2,
    INT y2
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDrawLineI(
    graphics As IntPtr,   ' GpGraphics* in/out
    pen As IntPtr,   ' GpPen* in/out
    x1 As Integer,   ' INT
    y1 As Integer,   ' INT
    x2 As Integer,   ' INT
    y2 As Integer   ' INT
) As Integer
End Function

' graphics : GpGraphics* in/out
' pen : GpPen* in/out
' x1 : INT
' y1 : INT
' x2 : INT
' y2 : INT
Declare PtrSafe Function GdipDrawLineI Lib "gdiplus" ( _
    ByVal graphics As LongPtr, _
    ByVal pen As LongPtr, _
    ByVal x1 As Long, _
    ByVal y1 As Long, _
    ByVal x2 As Long, _
    ByVal y2 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

GdipDrawLineI = ctypes.windll.gdiplus.GdipDrawLineI
GdipDrawLineI.restype = ctypes.c_int
GdipDrawLineI.argtypes = [
    ctypes.c_void_p,  # graphics : GpGraphics* in/out
    ctypes.c_void_p,  # pen : GpPen* in/out
    ctypes.c_int,  # x1 : INT
    ctypes.c_int,  # y1 : INT
    ctypes.c_int,  # x2 : INT
    ctypes.c_int,  # y2 : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipDrawLineI = Fiddle::Function.new(
  lib['GdipDrawLineI'],
  [
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics* in/out
    Fiddle::TYPE_VOIDP,  # pen : GpPen* in/out
    Fiddle::TYPE_INT,  # x1 : INT
    Fiddle::TYPE_INT,  # y1 : INT
    Fiddle::TYPE_INT,  # x2 : INT
    Fiddle::TYPE_INT,  # y2 : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipDrawLineI(
        graphics: *mut GpGraphics,  // GpGraphics* in/out
        pen: *mut GpPen,  // GpPen* in/out
        x1: i32,  // INT
        y1: i32,  // INT
        x2: i32,  // INT
        y2: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDrawLineI(IntPtr graphics, IntPtr pen, int x1, int y1, int x2, int y2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDrawLineI' -Namespace Win32 -PassThru
# $api::GdipDrawLineI(graphics, pen, x1, y1, x2, y2)

#uselib "gdiplus.dll"
#func global GdipDrawLineI "GdipDrawLineI" sptr, sptr, sptr, sptr, sptr, sptr
; GdipDrawLineI varptr(graphics), varptr(pen), x1, y1, x2, y2   ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; pen : GpPen* in/out -> "sptr"
; x1 : INT -> "sptr"
; y1 : INT -> "sptr"
; x2 : INT -> "sptr"
; y2 : INT -> "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 "gdiplus.dll"
#cfunc global GdipDrawLineI "GdipDrawLineI" var, var, int, int, int, int
; res = GdipDrawLineI(graphics, pen, x1, y1, x2, y2)
; graphics : GpGraphics* in/out -> "var"
; pen : GpPen* in/out -> "var"
; x1 : INT -> "int"
; y1 : INT -> "int"
; x2 : INT -> "int"
; y2 : INT -> "int"
; ※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。

; Status GdipDrawLineI(GpGraphics* graphics, GpPen* pen, INT x1, INT y1, INT x2, INT y2)
#uselib "gdiplus.dll"
#cfunc global GdipDrawLineI "GdipDrawLineI" var, var, int, int, int, int
; res = GdipDrawLineI(graphics, pen, x1, y1, x2, y2)
; graphics : GpGraphics* in/out -> "var"
; pen : GpPen* in/out -> "var"
; x1 : INT -> "int"
; y1 : INT -> "int"
; x2 : INT -> "int"
; y2 : INT -> "int"
; ※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 (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipDrawLineI = gdiplus.NewProc("GdipDrawLineI")
)

// graphics (GpGraphics* in/out), pen (GpPen* in/out), x1 (INT), y1 (INT), x2 (INT), y2 (INT)
r1, _, err := procGdipDrawLineI.Call(
	uintptr(graphics),
	uintptr(pen),
	uintptr(x1),
	uintptr(y1),
	uintptr(x2),
	uintptr(y2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipDrawLineI(
  graphics: Pointer;   // GpGraphics* in/out
  pen: Pointer;   // GpPen* in/out
  x1: Integer;   // INT
  y1: Integer;   // INT
  x2: Integer;   // INT
  y2: Integer   // INT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipDrawLineI';

result := DllCall("gdiplus\GdipDrawLineI"
    , "Ptr", graphics   ; GpGraphics* in/out
    , "Ptr", pen   ; GpPen* in/out
    , "Int", x1   ; INT
    , "Int", y1   ; INT
    , "Int", x2   ; INT
    , "Int", y2   ; INT
    , "Int")   ; return: Status

●GdipDrawLineI(graphics, pen, x1, y1, x2, y2) = DLL("gdiplus.dll", "int GdipDrawLineI(void*, void*, int, int, int, int)")
# 呼び出し: GdipDrawLineI(graphics, pen, x1, y1, x2, y2)
# graphics : GpGraphics* in/out -> "void*"
# pen : GpPen* in/out -> "void*"
# x1 : INT -> "int"
# y1 : INT -> "int"
# x2 : INT -> "int"
# y2 : INT -> "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)。