ICGetDisplayFormat

// MSVFW32.dll
#include <windows.h>

HIC ICGetDisplayFormat(
    HIC hic,   // optional
    BITMAPINFOHEADER* lpbiIn,
    BITMAPINFOHEADER* lpbiOut,
    INT BitDepth,
    INT dx,
    INT dy
);

<DllImport("MSVFW32.dll", ExactSpelling:=True)>
Public Shared Function ICGetDisplayFormat(
    hic As IntPtr,   ' HIC optional
    lpbiIn As IntPtr,   ' BITMAPINFOHEADER*
    lpbiOut As IntPtr,   ' BITMAPINFOHEADER* out
    BitDepth As Integer,   ' INT
    dx As Integer,   ' INT
    dy As Integer   ' INT
) As IntPtr
End Function

' hic : HIC optional
' lpbiIn : BITMAPINFOHEADER*
' lpbiOut : BITMAPINFOHEADER* out
' BitDepth : INT
' dx : INT
' dy : INT
Declare PtrSafe Function ICGetDisplayFormat Lib "msvfw32" ( _
    ByVal hic As LongPtr, _
    ByVal lpbiIn As LongPtr, _
    ByVal lpbiOut As LongPtr, _
    ByVal BitDepth As Long, _
    ByVal dx As Long, _
    ByVal dy As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ICGetDisplayFormat = ctypes.windll.msvfw32.ICGetDisplayFormat
ICGetDisplayFormat.restype = ctypes.c_void_p
ICGetDisplayFormat.argtypes = [
    wintypes.HANDLE,  # hic : HIC optional
    ctypes.c_void_p,  # lpbiIn : BITMAPINFOHEADER*
    ctypes.c_void_p,  # lpbiOut : BITMAPINFOHEADER* out
    ctypes.c_int,  # BitDepth : INT
    ctypes.c_int,  # dx : INT
    ctypes.c_int,  # dy : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSVFW32.dll')
ICGetDisplayFormat = Fiddle::Function.new(
  lib['ICGetDisplayFormat'],
  [
    Fiddle::TYPE_VOIDP,  # hic : HIC optional
    Fiddle::TYPE_VOIDP,  # lpbiIn : BITMAPINFOHEADER*
    Fiddle::TYPE_VOIDP,  # lpbiOut : BITMAPINFOHEADER* out
    Fiddle::TYPE_INT,  # BitDepth : INT
    Fiddle::TYPE_INT,  # dx : INT
    Fiddle::TYPE_INT,  # dy : INT
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "msvfw32")]
extern "system" {
    fn ICGetDisplayFormat(
        hic: *mut core::ffi::c_void,  // HIC optional
        lpbiIn: *mut BITMAPINFOHEADER,  // BITMAPINFOHEADER*
        lpbiOut: *mut BITMAPINFOHEADER,  // BITMAPINFOHEADER* out
        BitDepth: i32,  // INT
        dx: i32,  // INT
        dy: i32  // INT
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSVFW32.dll")]
public static extern IntPtr ICGetDisplayFormat(IntPtr hic, IntPtr lpbiIn, IntPtr lpbiOut, int BitDepth, int dx, int dy);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSVFW32_ICGetDisplayFormat' -Namespace Win32 -PassThru
# $api::ICGetDisplayFormat(hic, lpbiIn, lpbiOut, BitDepth, dx, dy)

#uselib "MSVFW32.dll"
#func global ICGetDisplayFormat "ICGetDisplayFormat" sptr, sptr, sptr, sptr, sptr, sptr
; ICGetDisplayFormat hic, varptr(lpbiIn), varptr(lpbiOut), BitDepth, dx, dy   ; 戻り値は stat
; hic : HIC optional -> "sptr"
; lpbiIn : BITMAPINFOHEADER* -> "sptr"
; lpbiOut : BITMAPINFOHEADER* out -> "sptr"
; BitDepth : INT -> "sptr"
; dx : INT -> "sptr"
; dy : 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 "MSVFW32.dll"
#cfunc global ICGetDisplayFormat "ICGetDisplayFormat" sptr, var, var, int, int, int
; res = ICGetDisplayFormat(hic, lpbiIn, lpbiOut, BitDepth, dx, dy)
; hic : HIC optional -> "sptr"
; lpbiIn : BITMAPINFOHEADER* -> "var"
; lpbiOut : BITMAPINFOHEADER* out -> "var"
; BitDepth : INT -> "int"
; dx : INT -> "int"
; dy : 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。

; HIC ICGetDisplayFormat(HIC hic, BITMAPINFOHEADER* lpbiIn, BITMAPINFOHEADER* lpbiOut, INT BitDepth, INT dx, INT dy)
#uselib "MSVFW32.dll"
#cfunc global ICGetDisplayFormat "ICGetDisplayFormat" intptr, var, var, int, int, int
; res = ICGetDisplayFormat(hic, lpbiIn, lpbiOut, BitDepth, dx, dy)
; hic : HIC optional -> "intptr"
; lpbiIn : BITMAPINFOHEADER* -> "var"
; lpbiOut : BITMAPINFOHEADER* out -> "var"
; BitDepth : INT -> "int"
; dx : INT -> "int"
; dy : 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 (
	msvfw32 = windows.NewLazySystemDLL("MSVFW32.dll")
	procICGetDisplayFormat = msvfw32.NewProc("ICGetDisplayFormat")
)

// hic (HIC optional), lpbiIn (BITMAPINFOHEADER*), lpbiOut (BITMAPINFOHEADER* out), BitDepth (INT), dx (INT), dy (INT)
r1, _, err := procICGetDisplayFormat.Call(
	uintptr(hic),
	uintptr(lpbiIn),
	uintptr(lpbiOut),
	uintptr(BitDepth),
	uintptr(dx),
	uintptr(dy),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HIC

function ICGetDisplayFormat(
  hic: THandle;   // HIC optional
  lpbiIn: Pointer;   // BITMAPINFOHEADER*
  lpbiOut: Pointer;   // BITMAPINFOHEADER* out
  BitDepth: Integer;   // INT
  dx: Integer;   // INT
  dy: Integer   // INT
): THandle; stdcall;
  external 'MSVFW32.dll' name 'ICGetDisplayFormat';

result := DllCall("MSVFW32\ICGetDisplayFormat"
    , "Ptr", hic   ; HIC optional
    , "Ptr", lpbiIn   ; BITMAPINFOHEADER*
    , "Ptr", lpbiOut   ; BITMAPINFOHEADER* out
    , "Int", BitDepth   ; INT
    , "Int", dx   ; INT
    , "Int", dy   ; INT
    , "Ptr")   ; return: HIC

●ICGetDisplayFormat(hic, lpbiIn, lpbiOut, BitDepth, dx, dy) = DLL("MSVFW32.dll", "void* ICGetDisplayFormat(void*, void*, void*, int, int, int)")
# 呼び出し: ICGetDisplayFormat(hic, lpbiIn, lpbiOut, BitDepth, dx, dy)
# hic : HIC optional -> "void*"
# lpbiIn : BITMAPINFOHEADER* -> "void*"
# lpbiOut : BITMAPINFOHEADER* out -> "void*"
# BitDepth : INT -> "int"
# dx : INT -> "int"
# dy : 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)。