GdipBitmapGetHistogramSize

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

Status GdipBitmapGetHistogramSize(
    HistogramFormat format,
    DWORD* NumberOfEntries
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipBitmapGetHistogramSize(
    format As Integer,   ' HistogramFormat
    ByRef NumberOfEntries As UInteger   ' DWORD* in/out
) As Integer
End Function

' format : HistogramFormat
' NumberOfEntries : DWORD* in/out
Declare PtrSafe Function GdipBitmapGetHistogramSize Lib "gdiplus" ( _
    ByVal format As Long, _
    ByRef NumberOfEntries 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

GdipBitmapGetHistogramSize = ctypes.windll.gdiplus.GdipBitmapGetHistogramSize
GdipBitmapGetHistogramSize.restype = ctypes.c_int
GdipBitmapGetHistogramSize.argtypes = [
    ctypes.c_int,  # format : HistogramFormat
    ctypes.POINTER(wintypes.DWORD),  # NumberOfEntries : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipBitmapGetHistogramSize = Fiddle::Function.new(
  lib['GdipBitmapGetHistogramSize'],
  [
    Fiddle::TYPE_INT,  # format : HistogramFormat
    Fiddle::TYPE_VOIDP,  # NumberOfEntries : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipBitmapGetHistogramSize(
        format: i32,  // HistogramFormat
        NumberOfEntries: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipBitmapGetHistogramSize(int format, ref uint NumberOfEntries);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipBitmapGetHistogramSize' -Namespace Win32 -PassThru
# $api::GdipBitmapGetHistogramSize(format, NumberOfEntries)

#uselib "gdiplus.dll"
#func global GdipBitmapGetHistogramSize "GdipBitmapGetHistogramSize" sptr, sptr
; GdipBitmapGetHistogramSize format, varptr(NumberOfEntries)   ; 戻り値は stat
; format : HistogramFormat -> "sptr"
; NumberOfEntries : DWORD* 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 GdipBitmapGetHistogramSize "GdipBitmapGetHistogramSize" int, var
; res = GdipBitmapGetHistogramSize(format, NumberOfEntries)
; format : HistogramFormat -> "int"
; NumberOfEntries : DWORD* 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 GdipBitmapGetHistogramSize(HistogramFormat format, DWORD* NumberOfEntries)
#uselib "gdiplus.dll"
#cfunc global GdipBitmapGetHistogramSize "GdipBitmapGetHistogramSize" int, var
; res = GdipBitmapGetHistogramSize(format, NumberOfEntries)
; format : HistogramFormat -> "int"
; NumberOfEntries : DWORD* 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")
	procGdipBitmapGetHistogramSize = gdiplus.NewProc("GdipBitmapGetHistogramSize")
)

// format (HistogramFormat), NumberOfEntries (DWORD* in/out)
r1, _, err := procGdipBitmapGetHistogramSize.Call(
	uintptr(format),
	uintptr(NumberOfEntries),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipBitmapGetHistogramSize(
  format: Integer;   // HistogramFormat
  NumberOfEntries: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipBitmapGetHistogramSize';

result := DllCall("gdiplus\GdipBitmapGetHistogramSize"
    , "Int", format   ; HistogramFormat
    , "Ptr", NumberOfEntries   ; DWORD* in/out
    , "Int")   ; return: Status

●GdipBitmapGetHistogramSize(format, NumberOfEntries) = DLL("gdiplus.dll", "int GdipBitmapGetHistogramSize(int, void*)")
# 呼び出し: GdipBitmapGetHistogramSize(format, NumberOfEntries)
# format : HistogramFormat -> "int"
# NumberOfEntries : DWORD* 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)。