SetWindowThemeAttribute

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

HRESULT SetWindowThemeAttribute(
    HWND hwnd,
    WINDOWTHEMEATTRIBUTETYPE eAttribute,
    void* pvAttribute,
    DWORD cbAttribute
);

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function SetWindowThemeAttribute(
    hwnd As IntPtr,   ' HWND
    eAttribute As Integer,   ' WINDOWTHEMEATTRIBUTETYPE
    pvAttribute As IntPtr,   ' void*
    cbAttribute As UInteger   ' DWORD
) As Integer
End Function

' hwnd : HWND
' eAttribute : WINDOWTHEMEATTRIBUTETYPE
' pvAttribute : void*
' cbAttribute : DWORD
Declare PtrSafe Function SetWindowThemeAttribute Lib "uxtheme" ( _
    ByVal hwnd As LongPtr, _
    ByVal eAttribute As Long, _
    ByVal pvAttribute As LongPtr, _
    ByVal cbAttribute 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

SetWindowThemeAttribute = ctypes.windll.uxtheme.SetWindowThemeAttribute
SetWindowThemeAttribute.restype = ctypes.c_int
SetWindowThemeAttribute.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND
    ctypes.c_int,  # eAttribute : WINDOWTHEMEATTRIBUTETYPE
    ctypes.POINTER(None),  # pvAttribute : void*
    wintypes.DWORD,  # cbAttribute : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
SetWindowThemeAttribute = Fiddle::Function.new(
  lib['SetWindowThemeAttribute'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    Fiddle::TYPE_INT,  # eAttribute : WINDOWTHEMEATTRIBUTETYPE
    Fiddle::TYPE_VOIDP,  # pvAttribute : void*
    -Fiddle::TYPE_INT,  # cbAttribute : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "uxtheme")]
extern "system" {
    fn SetWindowThemeAttribute(
        hwnd: *mut core::ffi::c_void,  // HWND
        eAttribute: i32,  // WINDOWTHEMEATTRIBUTETYPE
        pvAttribute: *mut (),  // void*
        cbAttribute: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll")]
public static extern int SetWindowThemeAttribute(IntPtr hwnd, int eAttribute, IntPtr pvAttribute, uint cbAttribute);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_SetWindowThemeAttribute' -Namespace Win32 -PassThru
# $api::SetWindowThemeAttribute(hwnd, eAttribute, pvAttribute, cbAttribute)

#uselib "UXTHEME.dll"
#func global SetWindowThemeAttribute "SetWindowThemeAttribute" sptr, sptr, sptr, sptr
; SetWindowThemeAttribute hwnd, eAttribute, pvAttribute, cbAttribute   ; 戻り値は stat
; hwnd : HWND -> "sptr"
; eAttribute : WINDOWTHEMEATTRIBUTETYPE -> "sptr"
; pvAttribute : void* -> "sptr"
; cbAttribute : DWORD -> "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 "UXTHEME.dll"
#cfunc global SetWindowThemeAttribute "SetWindowThemeAttribute" sptr, int, sptr, int
; res = SetWindowThemeAttribute(hwnd, eAttribute, pvAttribute, cbAttribute)
; hwnd : HWND -> "sptr"
; eAttribute : WINDOWTHEMEATTRIBUTETYPE -> "int"
; pvAttribute : void* -> "sptr"
; cbAttribute : DWORD -> "int"

; HRESULT SetWindowThemeAttribute(HWND hwnd, WINDOWTHEMEATTRIBUTETYPE eAttribute, void* pvAttribute, DWORD cbAttribute)
#uselib "UXTHEME.dll"
#cfunc global SetWindowThemeAttribute "SetWindowThemeAttribute" intptr, int, intptr, int
; res = SetWindowThemeAttribute(hwnd, eAttribute, pvAttribute, cbAttribute)
; hwnd : HWND -> "intptr"
; eAttribute : WINDOWTHEMEATTRIBUTETYPE -> "int"
; pvAttribute : void* -> "intptr"
; cbAttribute : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procSetWindowThemeAttribute = uxtheme.NewProc("SetWindowThemeAttribute")
)

// hwnd (HWND), eAttribute (WINDOWTHEMEATTRIBUTETYPE), pvAttribute (void*), cbAttribute (DWORD)
r1, _, err := procSetWindowThemeAttribute.Call(
	uintptr(hwnd),
	uintptr(eAttribute),
	uintptr(pvAttribute),
	uintptr(cbAttribute),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SetWindowThemeAttribute(
  hwnd: THandle;   // HWND
  eAttribute: Integer;   // WINDOWTHEMEATTRIBUTETYPE
  pvAttribute: Pointer;   // void*
  cbAttribute: DWORD   // DWORD
): Integer; stdcall;
  external 'UXTHEME.dll' name 'SetWindowThemeAttribute';

result := DllCall("UXTHEME\SetWindowThemeAttribute"
    , "Ptr", hwnd   ; HWND
    , "Int", eAttribute   ; WINDOWTHEMEATTRIBUTETYPE
    , "Ptr", pvAttribute   ; void*
    , "UInt", cbAttribute   ; DWORD
    , "Int")   ; return: HRESULT

●SetWindowThemeAttribute(hwnd, eAttribute, pvAttribute, cbAttribute) = DLL("UXTHEME.dll", "int SetWindowThemeAttribute(void*, int, void*, dword)")
# 呼び出し: SetWindowThemeAttribute(hwnd, eAttribute, pvAttribute, cbAttribute)
# hwnd : HWND -> "void*"
# eAttribute : WINDOWTHEMEATTRIBUTETYPE -> "int"
# pvAttribute : void* -> "void*"
# cbAttribute : DWORD -> "dword"
# 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)。