BeginBufferedPaint

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

INT_PTR BeginBufferedPaint(
    HDC hdcTarget,
    const RECT* prcTarget,
    BP_BUFFERFORMAT dwFormat,
    BP_PAINTPARAMS* pPaintParams,   // optional
    HDC* phdc
);

<DllImport("UXTHEME.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function BeginBufferedPaint(
    hdcTarget As IntPtr,   ' HDC
    prcTarget As IntPtr,   ' RECT*
    dwFormat As Integer,   ' BP_BUFFERFORMAT
    pPaintParams As IntPtr,   ' BP_PAINTPARAMS* optional
    phdc As IntPtr   ' HDC* out
) As IntPtr
End Function

' hdcTarget : HDC
' prcTarget : RECT*
' dwFormat : BP_BUFFERFORMAT
' pPaintParams : BP_PAINTPARAMS* optional
' phdc : HDC* out
Declare PtrSafe Function BeginBufferedPaint Lib "uxtheme" ( _
    ByVal hdcTarget As LongPtr, _
    ByVal prcTarget As LongPtr, _
    ByVal dwFormat As Long, _
    ByVal pPaintParams As LongPtr, _
    ByVal phdc As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

BeginBufferedPaint = ctypes.windll.uxtheme.BeginBufferedPaint
BeginBufferedPaint.restype = ctypes.c_ssize_t
BeginBufferedPaint.argtypes = [
    wintypes.HANDLE,  # hdcTarget : HDC
    ctypes.c_void_p,  # prcTarget : RECT*
    ctypes.c_int,  # dwFormat : BP_BUFFERFORMAT
    ctypes.c_void_p,  # pPaintParams : BP_PAINTPARAMS* optional
    ctypes.c_void_p,  # phdc : HDC* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
BeginBufferedPaint = Fiddle::Function.new(
  lib['BeginBufferedPaint'],
  [
    Fiddle::TYPE_VOIDP,  # hdcTarget : HDC
    Fiddle::TYPE_VOIDP,  # prcTarget : RECT*
    Fiddle::TYPE_INT,  # dwFormat : BP_BUFFERFORMAT
    Fiddle::TYPE_VOIDP,  # pPaintParams : BP_PAINTPARAMS* optional
    Fiddle::TYPE_VOIDP,  # phdc : HDC* out
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "uxtheme")]
extern "system" {
    fn BeginBufferedPaint(
        hdcTarget: *mut core::ffi::c_void,  // HDC
        prcTarget: *const RECT,  // RECT*
        dwFormat: i32,  // BP_BUFFERFORMAT
        pPaintParams: *mut BP_PAINTPARAMS,  // BP_PAINTPARAMS* optional
        phdc: *mut *mut core::ffi::c_void  // HDC* out
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll", SetLastError = true)]
public static extern IntPtr BeginBufferedPaint(IntPtr hdcTarget, IntPtr prcTarget, int dwFormat, IntPtr pPaintParams, IntPtr phdc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_BeginBufferedPaint' -Namespace Win32 -PassThru
# $api::BeginBufferedPaint(hdcTarget, prcTarget, dwFormat, pPaintParams, phdc)

#uselib "UXTHEME.dll"
#func global BeginBufferedPaint "BeginBufferedPaint" sptr, sptr, sptr, sptr, sptr
; BeginBufferedPaint hdcTarget, varptr(prcTarget), dwFormat, varptr(pPaintParams), phdc   ; 戻り値は stat
; hdcTarget : HDC -> "sptr"
; prcTarget : RECT* -> "sptr"
; dwFormat : BP_BUFFERFORMAT -> "sptr"
; pPaintParams : BP_PAINTPARAMS* optional -> "sptr"
; phdc : HDC* 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 "UXTHEME.dll"
#cfunc global BeginBufferedPaint "BeginBufferedPaint" sptr, var, int, var, sptr
; res = BeginBufferedPaint(hdcTarget, prcTarget, dwFormat, pPaintParams, phdc)
; hdcTarget : HDC -> "sptr"
; prcTarget : RECT* -> "var"
; dwFormat : BP_BUFFERFORMAT -> "int"
; pPaintParams : BP_PAINTPARAMS* optional -> "var"
; phdc : HDC* out -> "sptr"
; ※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。

; INT_PTR BeginBufferedPaint(HDC hdcTarget, RECT* prcTarget, BP_BUFFERFORMAT dwFormat, BP_PAINTPARAMS* pPaintParams, HDC* phdc)
#uselib "UXTHEME.dll"
#cfunc global BeginBufferedPaint "BeginBufferedPaint" intptr, var, int, var, intptr
; res = BeginBufferedPaint(hdcTarget, prcTarget, dwFormat, pPaintParams, phdc)
; hdcTarget : HDC -> "intptr"
; prcTarget : RECT* -> "var"
; dwFormat : BP_BUFFERFORMAT -> "int"
; pPaintParams : BP_PAINTPARAMS* optional -> "var"
; phdc : HDC* out -> "intptr"
; ※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 (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procBeginBufferedPaint = uxtheme.NewProc("BeginBufferedPaint")
)

// hdcTarget (HDC), prcTarget (RECT*), dwFormat (BP_BUFFERFORMAT), pPaintParams (BP_PAINTPARAMS* optional), phdc (HDC* out)
r1, _, err := procBeginBufferedPaint.Call(
	uintptr(hdcTarget),
	uintptr(prcTarget),
	uintptr(dwFormat),
	uintptr(pPaintParams),
	uintptr(phdc),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT_PTR

function BeginBufferedPaint(
  hdcTarget: THandle;   // HDC
  prcTarget: Pointer;   // RECT*
  dwFormat: Integer;   // BP_BUFFERFORMAT
  pPaintParams: Pointer;   // BP_PAINTPARAMS* optional
  phdc: Pointer   // HDC* out
): NativeInt; stdcall;
  external 'UXTHEME.dll' name 'BeginBufferedPaint';

result := DllCall("UXTHEME\BeginBufferedPaint"
    , "Ptr", hdcTarget   ; HDC
    , "Ptr", prcTarget   ; RECT*
    , "Int", dwFormat   ; BP_BUFFERFORMAT
    , "Ptr", pPaintParams   ; BP_PAINTPARAMS* optional
    , "Ptr", phdc   ; HDC* out
    , "Ptr")   ; return: INT_PTR

●BeginBufferedPaint(hdcTarget, prcTarget, dwFormat, pPaintParams, phdc) = DLL("UXTHEME.dll", "int BeginBufferedPaint(void*, void*, int, void*, void*)")
# 呼び出し: BeginBufferedPaint(hdcTarget, prcTarget, dwFormat, pPaintParams, phdc)
# hdcTarget : HDC -> "void*"
# prcTarget : RECT* -> "void*"
# dwFormat : BP_BUFFERFORMAT -> "int"
# pPaintParams : BP_PAINTPARAMS* optional -> "void*"
# phdc : HDC* 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)。