ホーム › Graphics.Gdi › GetMiterLimit
GetMiterLimit
関数DCの現在のマイター長制限値を取得する。
シグネチャ
// GDI32.dll
#include <windows.h>
BOOL GetMiterLimit(
HDC hdc,
FLOAT* plimit
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| hdc | HDC | in |
| plimit | FLOAT* | out |
戻り値の型: BOOL
各言語での呼び出し定義
// GDI32.dll
#include <windows.h>
BOOL GetMiterLimit(
HDC hdc,
FLOAT* plimit
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll", ExactSpelling = true)]
static extern bool GetMiterLimit(
IntPtr hdc, // HDC
out float plimit // FLOAT* out
);<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function GetMiterLimit(
hdc As IntPtr, ' HDC
<Out> ByRef plimit As Single ' FLOAT* out
) As Boolean
End Function' hdc : HDC
' plimit : FLOAT* out
Declare PtrSafe Function GetMiterLimit Lib "gdi32" ( _
ByVal hdc As LongPtr, _
ByRef plimit As Single) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
GetMiterLimit = ctypes.windll.gdi32.GetMiterLimit
GetMiterLimit.restype = wintypes.BOOL
GetMiterLimit.argtypes = [
wintypes.HANDLE, # hdc : HDC
ctypes.POINTER(ctypes.c_float), # plimit : FLOAT* out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('GDI32.dll')
GetMiterLimit = Fiddle::Function.new(
lib['GetMiterLimit'],
[
Fiddle::TYPE_VOIDP, # hdc : HDC
Fiddle::TYPE_VOIDP, # plimit : FLOAT* out
],
Fiddle::TYPE_INT)#[link(name = "gdi32")]
extern "system" {
fn GetMiterLimit(
hdc: *mut core::ffi::c_void, // HDC
plimit: *mut f32 // FLOAT* out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool GetMiterLimit(IntPtr hdc, out float plimit);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetMiterLimit' -Namespace Win32 -PassThru
# $api::GetMiterLimit(hdc, plimit)#uselib "GDI32.dll"
#func global GetMiterLimit "GetMiterLimit" sptr, sptr
; GetMiterLimit hdc, varptr(plimit) ; 戻り値は stat
; hdc : HDC -> "sptr"
; plimit : FLOAT* 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 GetMiterLimit "GetMiterLimit" sptr, var ; res = GetMiterLimit(hdc, plimit) ; hdc : HDC -> "sptr" ; plimit : FLOAT* 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 GetMiterLimit "GetMiterLimit" sptr, sptr ; res = GetMiterLimit(hdc, varptr(plimit)) ; hdc : HDC -> "sptr" ; plimit : FLOAT* 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 GetMiterLimit(HDC hdc, FLOAT* plimit) #uselib "GDI32.dll" #cfunc global GetMiterLimit "GetMiterLimit" intptr, var ; res = GetMiterLimit(hdc, plimit) ; hdc : HDC -> "intptr" ; plimit : FLOAT* 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 GetMiterLimit(HDC hdc, FLOAT* plimit) #uselib "GDI32.dll" #cfunc global GetMiterLimit "GetMiterLimit" intptr, intptr ; res = GetMiterLimit(hdc, varptr(plimit)) ; hdc : HDC -> "intptr" ; plimit : FLOAT* 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")
procGetMiterLimit = gdi32.NewProc("GetMiterLimit")
)
// hdc (HDC), plimit (FLOAT* out)
r1, _, err := procGetMiterLimit.Call(
uintptr(hdc),
uintptr(plimit),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction GetMiterLimit(
hdc: THandle; // HDC
plimit: Pointer // FLOAT* out
): BOOL; stdcall;
external 'GDI32.dll' name 'GetMiterLimit';result := DllCall("GDI32\GetMiterLimit"
, "Ptr", hdc ; HDC
, "Ptr", plimit ; FLOAT* out
, "Int") ; return: BOOL●GetMiterLimit(hdc, plimit) = DLL("GDI32.dll", "bool GetMiterLimit(void*, void*)")
# 呼び出し: GetMiterLimit(hdc, plimit)
# hdc : HDC -> "void*"
# plimit : FLOAT* 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)。