GdipGetAdjustableArrowCapHeight

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

Status GdipGetAdjustableArrowCapHeight(
    GpAdjustableArrowCap* cap,
    FLOAT* height
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipGetAdjustableArrowCapHeight(
    cap As IntPtr,   ' GpAdjustableArrowCap* in/out
    ByRef height As Single   ' FLOAT* in/out
) As Integer
End Function

' cap : GpAdjustableArrowCap* in/out
' height : FLOAT* in/out
Declare PtrSafe Function GdipGetAdjustableArrowCapHeight Lib "gdiplus" ( _
    ByVal cap As LongPtr, _
    ByRef height 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

GdipGetAdjustableArrowCapHeight = ctypes.windll.gdiplus.GdipGetAdjustableArrowCapHeight
GdipGetAdjustableArrowCapHeight.restype = ctypes.c_int
GdipGetAdjustableArrowCapHeight.argtypes = [
    ctypes.c_void_p,  # cap : GpAdjustableArrowCap* in/out
    ctypes.POINTER(ctypes.c_float),  # height : FLOAT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipGetAdjustableArrowCapHeight = Fiddle::Function.new(
  lib['GdipGetAdjustableArrowCapHeight'],
  [
    Fiddle::TYPE_VOIDP,  # cap : GpAdjustableArrowCap* in/out
    Fiddle::TYPE_VOIDP,  # height : FLOAT* in/out
  ],
  Fiddle::TYPE_INT)

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

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

#uselib "gdiplus.dll"
#func global GdipGetAdjustableArrowCapHeight "GdipGetAdjustableArrowCapHeight" sptr, sptr
; GdipGetAdjustableArrowCapHeight varptr(cap), varptr(height)   ; 戻り値は stat
; cap : GpAdjustableArrowCap* in/out -> "sptr"
; height : 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。

#uselib "gdiplus.dll"
#cfunc global GdipGetAdjustableArrowCapHeight "GdipGetAdjustableArrowCapHeight" var, var
; res = GdipGetAdjustableArrowCapHeight(cap, height)
; cap : GpAdjustableArrowCap* in/out -> "var"
; height : FLOAT* in/out -> "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。

; Status GdipGetAdjustableArrowCapHeight(GpAdjustableArrowCap* cap, FLOAT* height)
#uselib "gdiplus.dll"
#cfunc global GdipGetAdjustableArrowCapHeight "GdipGetAdjustableArrowCapHeight" var, var
; res = GdipGetAdjustableArrowCapHeight(cap, height)
; cap : GpAdjustableArrowCap* in/out -> "var"
; height : FLOAT* in/out -> "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 (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipGetAdjustableArrowCapHeight = gdiplus.NewProc("GdipGetAdjustableArrowCapHeight")
)

// cap (GpAdjustableArrowCap* in/out), height (FLOAT* in/out)
r1, _, err := procGdipGetAdjustableArrowCapHeight.Call(
	uintptr(cap),
	uintptr(height),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipGetAdjustableArrowCapHeight(
  cap: Pointer;   // GpAdjustableArrowCap* in/out
  height: Pointer   // FLOAT* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetAdjustableArrowCapHeight';

result := DllCall("gdiplus\GdipGetAdjustableArrowCapHeight"
    , "Ptr", cap   ; GpAdjustableArrowCap* in/out
    , "Ptr", height   ; FLOAT* in/out
    , "Int")   ; return: Status

●GdipGetAdjustableArrowCapHeight(cap, height) = DLL("gdiplus.dll", "int GdipGetAdjustableArrowCapHeight(void*, void*)")
# 呼び出し: GdipGetAdjustableArrowCapHeight(cap, height)
# cap : GpAdjustableArrowCap* in/out -> "void*"
# height : 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)。