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SetViewportExtEx
関数ビューポートの範囲(拡大率)を設定する。
シグネチャ
// GDI32.dll
#include <windows.h>
BOOL SetViewportExtEx(
HDC hdc,
INT x,
INT y,
SIZE* lpsz // optional
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| hdc | HDC | in |
| x | INT | in |
| y | INT | in |
| lpsz | SIZE* | outoptional |
戻り値の型: BOOL
各言語での呼び出し定義
// GDI32.dll
#include <windows.h>
BOOL SetViewportExtEx(
HDC hdc,
INT x,
INT y,
SIZE* lpsz // optional
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll", ExactSpelling = true)]
static extern bool SetViewportExtEx(
IntPtr hdc, // HDC
int x, // INT
int y, // INT
IntPtr lpsz // SIZE* optional, out
);<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function SetViewportExtEx(
hdc As IntPtr, ' HDC
x As Integer, ' INT
y As Integer, ' INT
lpsz As IntPtr ' SIZE* optional, out
) As Boolean
End Function' hdc : HDC
' x : INT
' y : INT
' lpsz : SIZE* optional, out
Declare PtrSafe Function SetViewportExtEx Lib "gdi32" ( _
ByVal hdc As LongPtr, _
ByVal x As Long, _
ByVal y As Long, _
ByVal lpsz 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
SetViewportExtEx = ctypes.windll.gdi32.SetViewportExtEx
SetViewportExtEx.restype = wintypes.BOOL
SetViewportExtEx.argtypes = [
wintypes.HANDLE, # hdc : HDC
ctypes.c_int, # x : INT
ctypes.c_int, # y : INT
ctypes.c_void_p, # lpsz : SIZE* optional, out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('GDI32.dll')
SetViewportExtEx = Fiddle::Function.new(
lib['SetViewportExtEx'],
[
Fiddle::TYPE_VOIDP, # hdc : HDC
Fiddle::TYPE_INT, # x : INT
Fiddle::TYPE_INT, # y : INT
Fiddle::TYPE_VOIDP, # lpsz : SIZE* optional, out
],
Fiddle::TYPE_INT)#[link(name = "gdi32")]
extern "system" {
fn SetViewportExtEx(
hdc: *mut core::ffi::c_void, // HDC
x: i32, // INT
y: i32, // INT
lpsz: *mut SIZE // SIZE* optional, out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool SetViewportExtEx(IntPtr hdc, int x, int y, IntPtr lpsz);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_SetViewportExtEx' -Namespace Win32 -PassThru
# $api::SetViewportExtEx(hdc, x, y, lpsz)#uselib "GDI32.dll"
#func global SetViewportExtEx "SetViewportExtEx" sptr, sptr, sptr, sptr
; SetViewportExtEx hdc, x, y, varptr(lpsz) ; 戻り値は stat
; hdc : HDC -> "sptr"
; x : INT -> "sptr"
; y : INT -> "sptr"
; lpsz : SIZE* optional, 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 "GDI32.dll" #cfunc global SetViewportExtEx "SetViewportExtEx" sptr, int, int, var ; res = SetViewportExtEx(hdc, x, y, lpsz) ; hdc : HDC -> "sptr" ; x : INT -> "int" ; y : INT -> "int" ; lpsz : SIZE* optional, 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。#uselib "GDI32.dll" #cfunc global SetViewportExtEx "SetViewportExtEx" sptr, int, int, sptr ; res = SetViewportExtEx(hdc, x, y, varptr(lpsz)) ; hdc : HDC -> "sptr" ; x : INT -> "int" ; y : INT -> "int" ; lpsz : SIZE* optional, out -> "sptr" ; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。
出力引数:
; BOOL SetViewportExtEx(HDC hdc, INT x, INT y, SIZE* lpsz) #uselib "GDI32.dll" #cfunc global SetViewportExtEx "SetViewportExtEx" intptr, int, int, var ; res = SetViewportExtEx(hdc, x, y, lpsz) ; hdc : HDC -> "intptr" ; x : INT -> "int" ; y : INT -> "int" ; lpsz : SIZE* optional, 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。; BOOL SetViewportExtEx(HDC hdc, INT x, INT y, SIZE* lpsz) #uselib "GDI32.dll" #cfunc global SetViewportExtEx "SetViewportExtEx" intptr, int, int, intptr ; res = SetViewportExtEx(hdc, x, y, varptr(lpsz)) ; hdc : HDC -> "intptr" ; x : INT -> "int" ; y : INT -> "int" ; lpsz : SIZE* optional, out -> "intptr" ; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。
import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
gdi32 = windows.NewLazySystemDLL("GDI32.dll")
procSetViewportExtEx = gdi32.NewProc("SetViewportExtEx")
)
// hdc (HDC), x (INT), y (INT), lpsz (SIZE* optional, out)
r1, _, err := procSetViewportExtEx.Call(
uintptr(hdc),
uintptr(x),
uintptr(y),
uintptr(lpsz),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction SetViewportExtEx(
hdc: THandle; // HDC
x: Integer; // INT
y: Integer; // INT
lpsz: Pointer // SIZE* optional, out
): BOOL; stdcall;
external 'GDI32.dll' name 'SetViewportExtEx';result := DllCall("GDI32\SetViewportExtEx"
, "Ptr", hdc ; HDC
, "Int", x ; INT
, "Int", y ; INT
, "Ptr", lpsz ; SIZE* optional, out
, "Int") ; return: BOOL●SetViewportExtEx(hdc, x, y, lpsz) = DLL("GDI32.dll", "bool SetViewportExtEx(void*, int, int, void*)")
# 呼び出し: SetViewportExtEx(hdc, x, y, lpsz)
# hdc : HDC -> "void*"
# x : INT -> "int"
# y : INT -> "int"
# lpsz : SIZE* optional, 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)。