MFCalculateBitmapImageSize

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

HRESULT MFCalculateBitmapImageSize(
    const BITMAPINFOHEADER* pBMIH,
    DWORD cbBufSize,
    DWORD* pcbImageSize,
    BOOL* pbKnown   // optional
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCalculateBitmapImageSize(
    pBMIH As IntPtr,   ' BITMAPINFOHEADER*
    cbBufSize As UInteger,   ' DWORD
    <Out> ByRef pcbImageSize As UInteger,   ' DWORD* out
    pbKnown As IntPtr   ' BOOL* optional, out
) As Integer
End Function

' pBMIH : BITMAPINFOHEADER*
' cbBufSize : DWORD
' pcbImageSize : DWORD* out
' pbKnown : BOOL* optional, out
Declare PtrSafe Function MFCalculateBitmapImageSize Lib "mfplat" ( _
    ByVal pBMIH As LongPtr, _
    ByVal cbBufSize As Long, _
    ByRef pcbImageSize As Long, _
    ByVal pbKnown 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

MFCalculateBitmapImageSize = ctypes.windll.mfplat.MFCalculateBitmapImageSize
MFCalculateBitmapImageSize.restype = ctypes.c_int
MFCalculateBitmapImageSize.argtypes = [
    ctypes.c_void_p,  # pBMIH : BITMAPINFOHEADER*
    wintypes.DWORD,  # cbBufSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbImageSize : DWORD* out
    ctypes.c_void_p,  # pbKnown : BOOL* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCalculateBitmapImageSize = Fiddle::Function.new(
  lib['MFCalculateBitmapImageSize'],
  [
    Fiddle::TYPE_VOIDP,  # pBMIH : BITMAPINFOHEADER*
    -Fiddle::TYPE_INT,  # cbBufSize : DWORD
    Fiddle::TYPE_VOIDP,  # pcbImageSize : DWORD* out
    Fiddle::TYPE_VOIDP,  # pbKnown : BOOL* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCalculateBitmapImageSize(
        pBMIH: *const BITMAPINFOHEADER,  // BITMAPINFOHEADER*
        cbBufSize: u32,  // DWORD
        pcbImageSize: *mut u32,  // DWORD* out
        pbKnown: *mut i32  // BOOL* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCalculateBitmapImageSize(IntPtr pBMIH, uint cbBufSize, out uint pcbImageSize, IntPtr pbKnown);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCalculateBitmapImageSize' -Namespace Win32 -PassThru
# $api::MFCalculateBitmapImageSize(pBMIH, cbBufSize, pcbImageSize, pbKnown)

#uselib "MFPlat.dll"
#func global MFCalculateBitmapImageSize "MFCalculateBitmapImageSize" sptr, sptr, sptr, sptr
; MFCalculateBitmapImageSize varptr(pBMIH), cbBufSize, varptr(pcbImageSize), pbKnown   ; 戻り値は stat
; pBMIH : BITMAPINFOHEADER* -> "sptr"
; cbBufSize : DWORD -> "sptr"
; pcbImageSize : DWORD* out -> "sptr"
; pbKnown : BOOL* 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 "MFPlat.dll"
#cfunc global MFCalculateBitmapImageSize "MFCalculateBitmapImageSize" var, int, var, int
; res = MFCalculateBitmapImageSize(pBMIH, cbBufSize, pcbImageSize, pbKnown)
; pBMIH : BITMAPINFOHEADER* -> "var"
; cbBufSize : DWORD -> "int"
; pcbImageSize : DWORD* out -> "var"
; pbKnown : BOOL* optional, out -> "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。

; HRESULT MFCalculateBitmapImageSize(BITMAPINFOHEADER* pBMIH, DWORD cbBufSize, DWORD* pcbImageSize, BOOL* pbKnown)
#uselib "MFPlat.dll"
#cfunc global MFCalculateBitmapImageSize "MFCalculateBitmapImageSize" var, int, var, int
; res = MFCalculateBitmapImageSize(pBMIH, cbBufSize, pcbImageSize, pbKnown)
; pBMIH : BITMAPINFOHEADER* -> "var"
; cbBufSize : DWORD -> "int"
; pcbImageSize : DWORD* out -> "var"
; pbKnown : BOOL* optional, out -> "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 (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCalculateBitmapImageSize = mfplat.NewProc("MFCalculateBitmapImageSize")
)

// pBMIH (BITMAPINFOHEADER*), cbBufSize (DWORD), pcbImageSize (DWORD* out), pbKnown (BOOL* optional, out)
r1, _, err := procMFCalculateBitmapImageSize.Call(
	uintptr(pBMIH),
	uintptr(cbBufSize),
	uintptr(pcbImageSize),
	uintptr(pbKnown),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCalculateBitmapImageSize(
  pBMIH: Pointer;   // BITMAPINFOHEADER*
  cbBufSize: DWORD;   // DWORD
  pcbImageSize: Pointer;   // DWORD* out
  pbKnown: Pointer   // BOOL* optional, out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCalculateBitmapImageSize';

result := DllCall("MFPlat\MFCalculateBitmapImageSize"
    , "Ptr", pBMIH   ; BITMAPINFOHEADER*
    , "UInt", cbBufSize   ; DWORD
    , "Ptr", pcbImageSize   ; DWORD* out
    , "Ptr", pbKnown   ; BOOL* optional, out
    , "Int")   ; return: HRESULT

●MFCalculateBitmapImageSize(pBMIH, cbBufSize, pcbImageSize, pbKnown) = DLL("MFPlat.dll", "int MFCalculateBitmapImageSize(void*, dword, void*, void*)")
# 呼び出し: MFCalculateBitmapImageSize(pBMIH, cbBufSize, pcbImageSize, pbKnown)
# pBMIH : BITMAPINFOHEADER* -> "void*"
# cbBufSize : DWORD -> "dword"
# pcbImageSize : DWORD* out -> "void*"
# pbKnown : BOOL* 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)。