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GdipIsVisiblePathPoint

関数
指定した点がGDI+パスの内部に含まれるか判定する(浮動小数点版)。
DLLgdiplus.dll呼出規約winapi

シグネチャ

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

Status GdipIsVisiblePathPoint(
    GpPath* path,
    FLOAT x,
    FLOAT y,
    GpGraphics* graphics,
    BOOL* result
);

パラメーター

名前型方向説明
pathGpPath*inout点の内包判定を行う対象のパスオブジェクトへのポインタ。
xFLOATin判定する点のX座標(FLOAT)。
yFLOATin判定する点のY座標(FLOAT)。
graphicsGpGraphics*inout座標変換やクリップ条件を提供するGpGraphicsへのポインタ。NULL可。
resultBOOL*inout点がパス内部にあればTRUEを受け取るBOOL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 GdipIsVisiblePathPoint(
    GpPath* path,
    FLOAT x,
    FLOAT y,
    GpGraphics* graphics,
    BOOL* result
);
[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipIsVisiblePathPoint(
    IntPtr path,   // GpPath* in/out
    float x,   // FLOAT
    float y,   // FLOAT
    IntPtr graphics,   // GpGraphics* in/out
    ref bool result   // BOOL* in/out
);
<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipIsVisiblePathPoint(
    path As IntPtr,   ' GpPath* in/out
    x As Single,   ' FLOAT
    y As Single,   ' FLOAT
    graphics As IntPtr,   ' GpGraphics* in/out
    ByRef result As Boolean   ' BOOL* in/out
) As Integer
End Function
' path : GpPath* in/out
' x : FLOAT
' y : FLOAT
' graphics : GpGraphics* in/out
' result : BOOL* in/out
Declare PtrSafe Function GdipIsVisiblePathPoint Lib "gdiplus" ( _
    ByVal path As LongPtr, _
    ByVal x As Single, _
    ByVal y As Single, _
    ByVal graphics As LongPtr, _
    ByRef result 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

GdipIsVisiblePathPoint = ctypes.windll.gdiplus.GdipIsVisiblePathPoint
GdipIsVisiblePathPoint.restype = ctypes.c_int
GdipIsVisiblePathPoint.argtypes = [
    ctypes.c_void_p,  # path : GpPath* in/out
    ctypes.c_float,  # x : FLOAT
    ctypes.c_float,  # y : FLOAT
    ctypes.c_void_p,  # graphics : GpGraphics* in/out
    ctypes.c_void_p,  # result : BOOL* in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipIsVisiblePathPoint = Fiddle::Function.new(
  lib['GdipIsVisiblePathPoint'],
  [
    Fiddle::TYPE_VOIDP,  # path : GpPath* in/out
    Fiddle::TYPE_FLOAT,  # x : FLOAT
    Fiddle::TYPE_FLOAT,  # y : FLOAT
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics* in/out
    Fiddle::TYPE_VOIDP,  # result : BOOL* in/out
  ],
  Fiddle::TYPE_INT)
#[link(name = "gdiplus")]
extern "system" {
    fn GdipIsVisiblePathPoint(
        path: *mut GpPath,  // GpPath* in/out
        x: f32,  // FLOAT
        y: f32,  // FLOAT
        graphics: *mut GpGraphics,  // GpGraphics* in/out
        result: *mut i32  // BOOL* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipIsVisiblePathPoint(IntPtr path, float x, float y, IntPtr graphics, ref bool result);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipIsVisiblePathPoint' -Namespace Win32 -PassThru
# $api::GdipIsVisiblePathPoint(path, x, y, graphics, result)
#uselib "gdiplus.dll"
#func global GdipIsVisiblePathPoint "GdipIsVisiblePathPoint" sptr, float, float, sptr, sptr
; GdipIsVisiblePathPoint varptr(path), x, y, varptr(graphics), varptr(result)   ; 戻り値は stat
; path : GpPath* in/out -> "sptr"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; graphics : GpGraphics* in/out -> "sptr"
; result : BOOL* 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 GdipIsVisiblePathPoint "GdipIsVisiblePathPoint" var, float, float, var, var
; res = GdipIsVisiblePathPoint(path, x, y, graphics, result)
; path : GpPath* in/out -> "var"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; graphics : GpGraphics* in/out -> "var"
; result : BOOL* 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 GdipIsVisiblePathPoint(GpPath* path, FLOAT x, FLOAT y, GpGraphics* graphics, BOOL* result)
#uselib "gdiplus.dll"
#cfunc global GdipIsVisiblePathPoint "GdipIsVisiblePathPoint" var, float, float, var, var
; res = GdipIsVisiblePathPoint(path, x, y, graphics, result)
; path : GpPath* in/out -> "var"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; graphics : GpGraphics* in/out -> "var"
; result : BOOL* 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 (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipIsVisiblePathPoint = gdiplus.NewProc("GdipIsVisiblePathPoint")
)

// path (GpPath* in/out), x (FLOAT), y (FLOAT), graphics (GpGraphics* in/out), result (BOOL* in/out)
r1, _, err := procGdipIsVisiblePathPoint.Call(
	uintptr(path),
	uintptr(math.Float32bits(x)),
	uintptr(math.Float32bits(y)),
	uintptr(graphics),
	uintptr(result),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。
function GdipIsVisiblePathPoint(
  path: Pointer;   // GpPath* in/out
  x: Single;   // FLOAT
  y: Single;   // FLOAT
  graphics: Pointer;   // GpGraphics* in/out
  result: Pointer   // BOOL* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipIsVisiblePathPoint';
result := DllCall("gdiplus\GdipIsVisiblePathPoint"
    , "Ptr", path   ; GpPath* in/out
    , "Float", x   ; FLOAT
    , "Float", y   ; FLOAT
    , "Ptr", graphics   ; GpGraphics* in/out
    , "Ptr", result   ; BOOL* in/out
    , "Int")   ; return: Status
●GdipIsVisiblePathPoint(path, x, y, graphics, result) = DLL("gdiplus.dll", "int GdipIsVisiblePathPoint(void*, float, float, void*, void*)")
# 呼び出し: GdipIsVisiblePathPoint(path, x, y, graphics, result)
# path : GpPath* in/out -> "void*"
# x : FLOAT -> "float"
# y : FLOAT -> "float"
# graphics : GpGraphics* in/out -> "void*"
# result : BOOL* 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 GdipIsVisiblePathPoint(
    path: [*c]GpPath, // GpPath* in/out
    x: f32, // FLOAT
    y: f32, // FLOAT
    graphics: [*c]GpGraphics, // GpGraphics* in/out
    result: [*c]i32 // BOOL* in/out
) callconv(std.os.windows.WINAPI) i32;
proc GdipIsVisiblePathPoint(
    path: ptr GpPath,  # GpPath* in/out
    x: float32,  # FLOAT
    y: float32,  # FLOAT
    graphics: ptr GpGraphics,  # GpGraphics* in/out
    result: ptr int32  # BOOL* in/out
): int32 {.importc: "GdipIsVisiblePathPoint", stdcall, dynlib: "gdiplus.dll".}
pragma(lib, "gdiplus");
extern(Windows)
int GdipIsVisiblePathPoint(
    GpPath* path,   // GpPath* in/out
    float x,   // FLOAT
    float y,   // FLOAT
    GpGraphics* graphics,   // GpGraphics* in/out
    int* result   // BOOL* in/out
);
ccall((:GdipIsVisiblePathPoint, "gdiplus.dll"), stdcall, Int32,
      (Ptr{GpPath}, Float32, Float32, Ptr{GpGraphics}, Ptr{Int32}),
      path, x, y, graphics, result)
# path : GpPath* in/out -> Ptr{GpPath}
# x : FLOAT -> Float32
# y : FLOAT -> Float32
# graphics : GpGraphics* in/out -> Ptr{GpGraphics}
# result : BOOL* in/out -> Ptr{Int32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t GdipIsVisiblePathPoint(
    void* path,
    float x,
    float y,
    void* graphics,
    int32_t* result);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipIsVisiblePathPoint(path, x, y, graphics, result)
-- path : GpPath* in/out
-- x : FLOAT
-- y : FLOAT
-- graphics : GpGraphics* in/out
-- result : BOOL* 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 GdipIsVisiblePathPoint = lib.func('__stdcall', 'GdipIsVisiblePathPoint', 'int32_t', ['void *', 'float', 'float', 'void *', 'int32_t *']);
// GdipIsVisiblePathPoint(path, x, y, graphics, result)
// path : GpPath* in/out -> 'void *'
// x : FLOAT -> 'float'
// y : FLOAT -> 'float'
// graphics : GpGraphics* in/out -> 'void *'
// result : BOOL* in/out -> 'int32_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", {
  GdipIsVisiblePathPoint: { parameters: ["pointer", "f32", "f32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.GdipIsVisiblePathPoint(path, x, y, graphics, result)
// path : GpPath* in/out -> "pointer"
// x : FLOAT -> "f32"
// y : FLOAT -> "f32"
// graphics : GpGraphics* in/out -> "pointer"
// result : BOOL* 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 GdipIsVisiblePathPoint(
    void* path,
    float x,
    float y,
    void* graphics,
    int32_t* result);
C, "gdiplus.dll");
// $ffi->GdipIsVisiblePathPoint(path, x, y, graphics, result);
// path : GpPath* in/out
// x : FLOAT
// y : FLOAT
// graphics : GpGraphics* in/out
// result : BOOL* 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 GdipIsVisiblePathPoint(
        Pointer path,   // GpPath* in/out
        float x,   // FLOAT
        float y,   // FLOAT
        Pointer graphics,   // GpGraphics* in/out
        IntByReference result   // BOOL* in/out
    );
}
@[Link("gdiplus")]
lib Libgdiplus
  fun GdipIsVisiblePathPoint = GdipIsVisiblePathPoint(
    path : GpPath*,   # GpPath* in/out
    x : Float32,   # FLOAT
    y : Float32,   # FLOAT
    graphics : GpGraphics*,   # GpGraphics* in/out
    result : Int32*   # BOOL* 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 GdipIsVisiblePathPointNative = Int32 Function(Pointer<Void>, Float, Float, Pointer<Void>, Pointer<Int32>);
typedef GdipIsVisiblePathPointDart = int Function(Pointer<Void>, double, double, Pointer<Void>, Pointer<Int32>);
final GdipIsVisiblePathPoint = DynamicLibrary.open('gdiplus.dll')
    .lookupFunction<GdipIsVisiblePathPointNative, GdipIsVisiblePathPointDart>('GdipIsVisiblePathPoint');
// path : GpPath* in/out -> Pointer<Void>
// x : FLOAT -> Float
// y : FLOAT -> Float
// graphics : GpGraphics* in/out -> Pointer<Void>
// result : BOOL* in/out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function GdipIsVisiblePathPoint(
  path: Pointer;   // GpPath* in/out
  x: Single;   // FLOAT
  y: Single;   // FLOAT
  graphics: Pointer;   // GpGraphics* in/out
  result: Pointer   // BOOL* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipIsVisiblePathPoint';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GdipIsVisiblePathPoint"
  c_GdipIsVisiblePathPoint :: Ptr () -> CFloat -> CFloat -> Ptr () -> Ptr CInt -> IO Int32
-- path : GpPath* in/out -> Ptr ()
-- x : FLOAT -> CFloat
-- y : FLOAT -> CFloat
-- graphics : GpGraphics* in/out -> Ptr ()
-- result : BOOL* in/out -> Ptr CInt
-- 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 gdipisvisiblepathpoint =
  foreign "GdipIsVisiblePathPoint"
    ((ptr void) @-> float @-> float @-> (ptr void) @-> (ptr int32_t) @-> returning int32_t)
(* path : GpPath* in/out -> (ptr void) *)
(* x : FLOAT -> float *)
(* y : FLOAT -> float *)
(* graphics : GpGraphics* in/out -> (ptr void) *)
(* result : BOOL* in/out -> (ptr int32_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 ("GdipIsVisiblePathPoint" gdip-is-visible-path-point :convention :stdcall) :int32
  (path :pointer)   ; GpPath* in/out
  (x :float)   ; FLOAT
  (y :float)   ; FLOAT
  (graphics :pointer)   ; GpGraphics* in/out
  (result :pointer))   ; BOOL* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $GdipIsVisiblePathPoint = Win32::API::More->new('gdiplus',
    'int GdipIsVisiblePathPoint(LPVOID path, float x, float y, LPVOID graphics, LPVOID result)');
# my $ret = $GdipIsVisiblePathPoint->Call($path, $x, $y, $graphics, $result);
# path : GpPath* in/out -> LPVOID
# x : FLOAT -> float
# y : FLOAT -> float
# graphics : GpGraphics* in/out -> LPVOID
# result : BOOL* 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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