GdipCreateFont

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

Status GdipCreateFont(
    const GpFontFamily* fontFamily,
    FLOAT emSize,
    INT style,
    Unit unit,
    GpFont** font
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipCreateFont(
    fontFamily As IntPtr,   ' GpFontFamily*
    emSize As Single,   ' FLOAT
    style As Integer,   ' INT
    unit As Integer,   ' Unit
    font As IntPtr   ' GpFont** in/out
) As Integer
End Function

' fontFamily : GpFontFamily*
' emSize : FLOAT
' style : INT
' unit : Unit
' font : GpFont** in/out
Declare PtrSafe Function GdipCreateFont Lib "gdiplus" ( _
    ByVal fontFamily As LongPtr, _
    ByVal emSize As Single, _
    ByVal style As Long, _
    ByVal unit As Long, _
    ByVal font 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

GdipCreateFont = ctypes.windll.gdiplus.GdipCreateFont
GdipCreateFont.restype = ctypes.c_int
GdipCreateFont.argtypes = [
    ctypes.c_void_p,  # fontFamily : GpFontFamily*
    ctypes.c_float,  # emSize : FLOAT
    ctypes.c_int,  # style : INT
    ctypes.c_int,  # unit : Unit
    ctypes.c_void_p,  # font : GpFont** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipCreateFont = Fiddle::Function.new(
  lib['GdipCreateFont'],
  [
    Fiddle::TYPE_VOIDP,  # fontFamily : GpFontFamily*
    Fiddle::TYPE_FLOAT,  # emSize : FLOAT
    Fiddle::TYPE_INT,  # style : INT
    Fiddle::TYPE_INT,  # unit : Unit
    Fiddle::TYPE_VOIDP,  # font : GpFont** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipCreateFont(
        fontFamily: *const GpFontFamily,  // GpFontFamily*
        emSize: f32,  // FLOAT
        style: i32,  // INT
        unit: i32,  // Unit
        font: *mut *mut GpFont  // GpFont** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipCreateFont(IntPtr fontFamily, float emSize, int style, int unit, IntPtr font);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipCreateFont' -Namespace Win32 -PassThru
# $api::GdipCreateFont(fontFamily, emSize, style, unit, font)

#uselib "gdiplus.dll"
#func global GdipCreateFont "GdipCreateFont" sptr, float, sptr, sptr, sptr
; GdipCreateFont varptr(fontFamily), emSize, style, unit, varptr(font)   ; 戻り値は stat
; fontFamily : GpFontFamily* -> "sptr"
; emSize : FLOAT -> "float"
; style : INT -> "sptr"
; unit : Unit -> "sptr"
; font : GpFont** 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 GdipCreateFont "GdipCreateFont" var, float, int, int, var
; res = GdipCreateFont(fontFamily, emSize, style, unit, font)
; fontFamily : GpFontFamily* -> "var"
; emSize : FLOAT -> "float"
; style : INT -> "int"
; unit : Unit -> "int"
; font : GpFont** 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 GdipCreateFont(GpFontFamily* fontFamily, FLOAT emSize, INT style, Unit unit, GpFont** font)
#uselib "gdiplus.dll"
#cfunc global GdipCreateFont "GdipCreateFont" var, float, int, int, var
; res = GdipCreateFont(fontFamily, emSize, style, unit, font)
; fontFamily : GpFontFamily* -> "var"
; emSize : FLOAT -> "float"
; style : INT -> "int"
; unit : Unit -> "int"
; font : GpFont** 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 (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipCreateFont = gdiplus.NewProc("GdipCreateFont")
)

// fontFamily (GpFontFamily*), emSize (FLOAT), style (INT), unit (Unit), font (GpFont** in/out)
r1, _, err := procGdipCreateFont.Call(
	uintptr(fontFamily),
	uintptr(math.Float32bits(emSize)),
	uintptr(style),
	uintptr(unit),
	uintptr(font),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。

function GdipCreateFont(
  fontFamily: Pointer;   // GpFontFamily*
  emSize: Single;   // FLOAT
  style: Integer;   // INT
  unit: Integer;   // Unit
  font: Pointer   // GpFont** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreateFont';

result := DllCall("gdiplus\GdipCreateFont"
    , "Ptr", fontFamily   ; GpFontFamily*
    , "Float", emSize   ; FLOAT
    , "Int", style   ; INT
    , "Int", unit   ; Unit
    , "Ptr", font   ; GpFont** in/out
    , "Int")   ; return: Status

●GdipCreateFont(fontFamily, emSize, style, unit, font) = DLL("gdiplus.dll", "int GdipCreateFont(void*, float, int, int, void*)")
# 呼び出し: GdipCreateFont(fontFamily, emSize, style, unit, font)
# fontFamily : GpFontFamily* -> "void*"
# emSize : FLOAT -> "float"
# style : INT -> "int"
# unit : Unit -> "int"
# font : GpFont** 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)。