GdipGetFontHeight

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

Status GdipGetFontHeight(
    const GpFont* font,
    const GpGraphics* graphics,
    FLOAT* height
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipGetFontHeight(
    font As IntPtr,   ' GpFont*
    graphics As IntPtr,   ' GpGraphics*
    ByRef height As Single   ' FLOAT* in/out
) As Integer
End Function

' font : GpFont*
' graphics : GpGraphics*
' height : FLOAT* in/out
Declare PtrSafe Function GdipGetFontHeight Lib "gdiplus" ( _
    ByVal font As LongPtr, _
    ByVal graphics 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

GdipGetFontHeight = ctypes.windll.gdiplus.GdipGetFontHeight
GdipGetFontHeight.restype = ctypes.c_int
GdipGetFontHeight.argtypes = [
    ctypes.c_void_p,  # font : GpFont*
    ctypes.c_void_p,  # graphics : GpGraphics*
    ctypes.POINTER(ctypes.c_float),  # height : FLOAT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipGetFontHeight = Fiddle::Function.new(
  lib['GdipGetFontHeight'],
  [
    Fiddle::TYPE_VOIDP,  # font : GpFont*
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics*
    Fiddle::TYPE_VOIDP,  # height : FLOAT* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipGetFontHeight(
        font: *const GpFont,  // GpFont*
        graphics: *const GpGraphics,  // GpGraphics*
        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 GdipGetFontHeight(IntPtr font, IntPtr graphics, ref float height);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipGetFontHeight' -Namespace Win32 -PassThru
# $api::GdipGetFontHeight(font, graphics, height)

#uselib "gdiplus.dll"
#func global GdipGetFontHeight "GdipGetFontHeight" sptr, sptr, sptr
; GdipGetFontHeight varptr(font), varptr(graphics), varptr(height)   ; 戻り値は stat
; font : GpFont* -> "sptr"
; graphics : GpGraphics* -> "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 GdipGetFontHeight "GdipGetFontHeight" var, var, var
; res = GdipGetFontHeight(font, graphics, height)
; font : GpFont* -> "var"
; graphics : GpGraphics* -> "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 GdipGetFontHeight(GpFont* font, GpGraphics* graphics, FLOAT* height)
#uselib "gdiplus.dll"
#cfunc global GdipGetFontHeight "GdipGetFontHeight" var, var, var
; res = GdipGetFontHeight(font, graphics, height)
; font : GpFont* -> "var"
; graphics : GpGraphics* -> "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")
	procGdipGetFontHeight = gdiplus.NewProc("GdipGetFontHeight")
)

// font (GpFont*), graphics (GpGraphics*), height (FLOAT* in/out)
r1, _, err := procGdipGetFontHeight.Call(
	uintptr(font),
	uintptr(graphics),
	uintptr(height),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipGetFontHeight(
  font: Pointer;   // GpFont*
  graphics: Pointer;   // GpGraphics*
  height: Pointer   // FLOAT* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetFontHeight';

result := DllCall("gdiplus\GdipGetFontHeight"
    , "Ptr", font   ; GpFont*
    , "Ptr", graphics   ; GpGraphics*
    , "Ptr", height   ; FLOAT* in/out
    , "Int")   ; return: Status

●GdipGetFontHeight(font, graphics, height) = DLL("gdiplus.dll", "int GdipGetFontHeight(void*, void*, void*)")
# 呼び出し: GdipGetFontHeight(font, graphics, height)
# font : GpFont* -> "void*"
# graphics : GpGraphics* -> "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)。