GdipSetLineGammaCorrection

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

Status GdipSetLineGammaCorrection(
    GpLineGradient* brush,
    BOOL useGammaCorrection
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipSetLineGammaCorrection(
    brush As IntPtr,   ' GpLineGradient* in/out
    useGammaCorrection As Boolean   ' BOOL
) As Integer
End Function

' brush : GpLineGradient* in/out
' useGammaCorrection : BOOL
Declare PtrSafe Function GdipSetLineGammaCorrection Lib "gdiplus" ( _
    ByVal brush As LongPtr, _
    ByVal useGammaCorrection 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

GdipSetLineGammaCorrection = ctypes.windll.gdiplus.GdipSetLineGammaCorrection
GdipSetLineGammaCorrection.restype = ctypes.c_int
GdipSetLineGammaCorrection.argtypes = [
    ctypes.c_void_p,  # brush : GpLineGradient* in/out
    wintypes.BOOL,  # useGammaCorrection : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipSetLineGammaCorrection = Fiddle::Function.new(
  lib['GdipSetLineGammaCorrection'],
  [
    Fiddle::TYPE_VOIDP,  # brush : GpLineGradient* in/out
    Fiddle::TYPE_INT,  # useGammaCorrection : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipSetLineGammaCorrection(
        brush: *mut GpLineGradient,  // GpLineGradient* in/out
        useGammaCorrection: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipSetLineGammaCorrection(IntPtr brush, bool useGammaCorrection);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipSetLineGammaCorrection' -Namespace Win32 -PassThru
# $api::GdipSetLineGammaCorrection(brush, useGammaCorrection)

#uselib "gdiplus.dll"
#func global GdipSetLineGammaCorrection "GdipSetLineGammaCorrection" sptr, sptr
; GdipSetLineGammaCorrection varptr(brush), useGammaCorrection   ; 戻り値は stat
; brush : GpLineGradient* in/out -> "sptr"
; useGammaCorrection : BOOL -> "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 GdipSetLineGammaCorrection "GdipSetLineGammaCorrection" var, int
; res = GdipSetLineGammaCorrection(brush, useGammaCorrection)
; brush : GpLineGradient* in/out -> "var"
; useGammaCorrection : BOOL -> "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。

; Status GdipSetLineGammaCorrection(GpLineGradient* brush, BOOL useGammaCorrection)
#uselib "gdiplus.dll"
#cfunc global GdipSetLineGammaCorrection "GdipSetLineGammaCorrection" var, int
; res = GdipSetLineGammaCorrection(brush, useGammaCorrection)
; brush : GpLineGradient* in/out -> "var"
; useGammaCorrection : BOOL -> "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 (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipSetLineGammaCorrection = gdiplus.NewProc("GdipSetLineGammaCorrection")
)

// brush (GpLineGradient* in/out), useGammaCorrection (BOOL)
r1, _, err := procGdipSetLineGammaCorrection.Call(
	uintptr(brush),
	uintptr(useGammaCorrection),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipSetLineGammaCorrection(
  brush: Pointer;   // GpLineGradient* in/out
  useGammaCorrection: BOOL   // BOOL
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipSetLineGammaCorrection';

result := DllCall("gdiplus\GdipSetLineGammaCorrection"
    , "Ptr", brush   ; GpLineGradient* in/out
    , "Int", useGammaCorrection   ; BOOL
    , "Int")   ; return: Status

●GdipSetLineGammaCorrection(brush, useGammaCorrection) = DLL("gdiplus.dll", "int GdipSetLineGammaCorrection(void*, bool)")
# 呼び出し: GdipSetLineGammaCorrection(brush, useGammaCorrection)
# brush : GpLineGradient* in/out -> "void*"
# useGammaCorrection : BOOL -> "bool"
# 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)。