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GdipGetRegionScans

関数
リージョンを構成する走査矩形の配列を取得する。
DLLgdiplus.dll呼出規約winapi

シグネチャ

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

Status GdipGetRegionScans(
    GpRegion* region,
    RectF* rects,
    INT* count,
    Matrix* matrix
);

パラメーター

名前方向説明
regionGpRegion*inout走査矩形を取得する対象のリージョンへのポインタ。
rectsRectF*inout取得した矩形(浮動小数)を格納する配列へのポインタ。NULLで個数のみ取得。
countINT*inout入出力で矩形数を受け渡すポインタ。
matrixMatrix*inout走査前に適用する変換行列へのポインタ。

戻り値の型: Status

各言語での呼び出し定義

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

Status GdipGetRegionScans(
    GpRegion* region,
    RectF* rects,
    INT* count,
    Matrix* matrix
);
[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipGetRegionScans(
    IntPtr region,   // GpRegion* in/out
    IntPtr rects,   // RectF* in/out
    ref int count,   // INT* in/out
    ref IntPtr matrix   // Matrix* in/out
);
<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipGetRegionScans(
    region As IntPtr,   ' GpRegion* in/out
    rects As IntPtr,   ' RectF* in/out
    ByRef count As Integer,   ' INT* in/out
    ByRef matrix As IntPtr   ' Matrix* in/out
) As Integer
End Function
' region : GpRegion* in/out
' rects : RectF* in/out
' count : INT* in/out
' matrix : Matrix* in/out
Declare PtrSafe Function GdipGetRegionScans Lib "gdiplus" ( _
    ByVal region As LongPtr, _
    ByVal rects As LongPtr, _
    ByRef count As Long, _
    ByRef matrix 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

GdipGetRegionScans = ctypes.windll.gdiplus.GdipGetRegionScans
GdipGetRegionScans.restype = ctypes.c_int
GdipGetRegionScans.argtypes = [
    ctypes.c_void_p,  # region : GpRegion* in/out
    ctypes.c_void_p,  # rects : RectF* in/out
    ctypes.POINTER(ctypes.c_int),  # count : INT* in/out
    ctypes.c_void_p,  # matrix : Matrix* in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipGetRegionScans = Fiddle::Function.new(
  lib['GdipGetRegionScans'],
  [
    Fiddle::TYPE_VOIDP,  # region : GpRegion* in/out
    Fiddle::TYPE_VOIDP,  # rects : RectF* in/out
    Fiddle::TYPE_VOIDP,  # count : INT* in/out
    Fiddle::TYPE_VOIDP,  # matrix : Matrix* in/out
  ],
  Fiddle::TYPE_INT)
#[link(name = "gdiplus")]
extern "system" {
    fn GdipGetRegionScans(
        region: *mut GpRegion,  // GpRegion* in/out
        rects: *mut RectF,  // RectF* in/out
        count: *mut i32,  // INT* in/out
        matrix: *mut isize  // Matrix* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipGetRegionScans(IntPtr region, IntPtr rects, ref int count, ref IntPtr matrix);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipGetRegionScans' -Namespace Win32 -PassThru
# $api::GdipGetRegionScans(region, rects, count, matrix)
#uselib "gdiplus.dll"
#func global GdipGetRegionScans "GdipGetRegionScans" sptr, sptr, sptr, sptr
; GdipGetRegionScans varptr(region), varptr(rects), varptr(count), varptr(matrix)   ; 戻り値は stat
; region : GpRegion* in/out -> "sptr"
; rects : RectF* in/out -> "sptr"
; count : INT* in/out -> "sptr"
; matrix : Matrix* 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。
出力引数:
#uselib "gdiplus.dll"
#cfunc global GdipGetRegionScans "GdipGetRegionScans" var, var, var, var
; res = GdipGetRegionScans(region, rects, count, matrix)
; region : GpRegion* in/out -> "var"
; rects : RectF* in/out -> "var"
; count : INT* in/out -> "var"
; matrix : Matrix* 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。
出力引数:
; Status GdipGetRegionScans(GpRegion* region, RectF* rects, INT* count, Matrix* matrix)
#uselib "gdiplus.dll"
#cfunc global GdipGetRegionScans "GdipGetRegionScans" var, var, var, var
; res = GdipGetRegionScans(region, rects, count, matrix)
; region : GpRegion* in/out -> "var"
; rects : RectF* in/out -> "var"
; count : INT* in/out -> "var"
; matrix : Matrix* 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")
	procGdipGetRegionScans = gdiplus.NewProc("GdipGetRegionScans")
)

// region (GpRegion* in/out), rects (RectF* in/out), count (INT* in/out), matrix (Matrix* in/out)
r1, _, err := procGdipGetRegionScans.Call(
	uintptr(region),
	uintptr(rects),
	uintptr(count),
	uintptr(matrix),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
function GdipGetRegionScans(
  region: Pointer;   // GpRegion* in/out
  rects: Pointer;   // RectF* in/out
  count: Pointer;   // INT* in/out
  matrix: Pointer   // Matrix* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetRegionScans';
result := DllCall("gdiplus\GdipGetRegionScans"
    , "Ptr", region   ; GpRegion* in/out
    , "Ptr", rects   ; RectF* in/out
    , "Ptr", count   ; INT* in/out
    , "Ptr", matrix   ; Matrix* in/out
    , "Int")   ; return: Status
●GdipGetRegionScans(region, rects, count, matrix) = DLL("gdiplus.dll", "int GdipGetRegionScans(void*, void*, void*, void*)")
# 呼び出し: GdipGetRegionScans(region, rects, count, matrix)
# region : GpRegion* in/out -> "void*"
# rects : RectF* in/out -> "void*"
# count : INT* in/out -> "void*"
# matrix : Matrix* 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)。
const std = @import("std");

extern "gdiplus" fn GdipGetRegionScans(
    region: [*c]GpRegion, // GpRegion* in/out
    rects: [*c]RectF, // RectF* in/out
    count: [*c]i32, // INT* in/out
    matrix: [*c]isize // Matrix* in/out
) callconv(std.os.windows.WINAPI) i32;
proc GdipGetRegionScans(
    region: ptr GpRegion,  # GpRegion* in/out
    rects: ptr RectF,  # RectF* in/out
    count: ptr int32,  # INT* in/out
    matrix: ptr int  # Matrix* in/out
): int32 {.importc: "GdipGetRegionScans", stdcall, dynlib: "gdiplus.dll".}
pragma(lib, "gdiplus");
extern(Windows)
int GdipGetRegionScans(
    GpRegion* region,   // GpRegion* in/out
    RectF* rects,   // RectF* in/out
    int* count,   // INT* in/out
    ptrdiff_t* matrix   // Matrix* in/out
);
ccall((:GdipGetRegionScans, "gdiplus.dll"), stdcall, Int32,
      (Ptr{GpRegion}, Ptr{RectF}, Ptr{Int32}, Ptr{Int}),
      region, rects, count, matrix)
# region : GpRegion* in/out -> Ptr{GpRegion}
# rects : RectF* in/out -> Ptr{RectF}
# count : INT* in/out -> Ptr{Int32}
# matrix : Matrix* in/out -> Ptr{Int}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t GdipGetRegionScans(
    void* region,
    void* rects,
    int32_t* count,
    intptr_t* matrix);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipGetRegionScans(region, rects, count, matrix)
-- region : GpRegion* in/out
-- rects : RectF* in/out
-- count : INT* in/out
-- matrix : Matrix* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('gdiplus.dll');
const GdipGetRegionScans = lib.func('__stdcall', 'GdipGetRegionScans', 'int32_t', ['void *', 'void *', 'int32_t *', 'intptr_t *']);
// GdipGetRegionScans(region, rects, count, matrix)
// region : GpRegion* in/out -> 'void *'
// rects : RectF* in/out -> 'void *'
// count : INT* in/out -> 'int32_t *'
// matrix : Matrix* in/out -> 'intptr_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("gdiplus.dll", {
  GdipGetRegionScans: { parameters: ["pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.GdipGetRegionScans(region, rects, count, matrix)
// region : GpRegion* in/out -> "pointer"
// rects : RectF* in/out -> "pointer"
// count : INT* in/out -> "pointer"
// matrix : Matrix* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t GdipGetRegionScans(
    void* region,
    void* rects,
    int32_t* count,
    intptr_t* matrix);
C, "gdiplus.dll");
// $ffi->GdipGetRegionScans(region, rects, count, matrix);
// region : GpRegion* in/out
// rects : RectF* in/out
// count : INT* in/out
// matrix : Matrix* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Gdiplus extends StdCallLibrary {
    Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
    int GdipGetRegionScans(
        Pointer region,   // GpRegion* in/out
        Pointer rects,   // RectF* in/out
        IntByReference count,   // INT* in/out
        LongByReference matrix   // Matrix* in/out
    );
}
@[Link("gdiplus")]
lib Libgdiplus
  fun GdipGetRegionScans = GdipGetRegionScans(
    region : GpRegion*,   # GpRegion* in/out
    rects : RectF*,   # RectF* in/out
    count : Int32*,   # INT* in/out
    matrix : LibC::SSizeT*   # Matrix* in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GdipGetRegionScansNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Int32>, Pointer<IntPtr>);
typedef GdipGetRegionScansDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Int32>, Pointer<IntPtr>);
final GdipGetRegionScans = DynamicLibrary.open('gdiplus.dll')
    .lookupFunction<GdipGetRegionScansNative, GdipGetRegionScansDart>('GdipGetRegionScans');
// region : GpRegion* in/out -> Pointer<Void>
// rects : RectF* in/out -> Pointer<Void>
// count : INT* in/out -> Pointer<Int32>
// matrix : Matrix* in/out -> Pointer<IntPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function GdipGetRegionScans(
  region: Pointer;   // GpRegion* in/out
  rects: Pointer;   // RectF* in/out
  count: Pointer;   // INT* in/out
  matrix: Pointer   // Matrix* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipGetRegionScans';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GdipGetRegionScans"
  c_GdipGetRegionScans :: Ptr () -> Ptr () -> Ptr Int32 -> Ptr CIntPtr -> IO Int32
-- region : GpRegion* in/out -> Ptr ()
-- rects : RectF* in/out -> Ptr ()
-- count : INT* in/out -> Ptr Int32
-- matrix : Matrix* in/out -> Ptr CIntPtr
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let gdipgetregionscans =
  foreign "GdipGetRegionScans"
    ((ptr void) @-> (ptr void) @-> (ptr int32_t) @-> (ptr intptr_t) @-> returning int32_t)
(* region : GpRegion* in/out -> (ptr void) *)
(* rects : RectF* in/out -> (ptr void) *)
(* count : INT* in/out -> (ptr int32_t) *)
(* matrix : Matrix* in/out -> (ptr intptr_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library gdiplus (t "gdiplus.dll"))
(cffi:use-foreign-library gdiplus)

(cffi:defcfun ("GdipGetRegionScans" gdip-get-region-scans :convention :stdcall) :int32
  (region :pointer)   ; GpRegion* in/out
  (rects :pointer)   ; RectF* in/out
  (count :pointer)   ; INT* in/out
  (matrix :pointer))   ; Matrix* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $GdipGetRegionScans = Win32::API::More->new('gdiplus',
    'int GdipGetRegionScans(LPVOID region, LPVOID rects, LPVOID count, LPVOID matrix)');
# my $ret = $GdipGetRegionScans->Call($region, $rects, $count, $matrix);
# region : GpRegion* in/out -> LPVOID
# rects : RectF* in/out -> LPVOID
# count : INT* in/out -> LPVOID
# matrix : Matrix* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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