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ホームGraphics.GdiPlus › GdipCreateFromHDC2

GdipCreateFromHDC2

関数
デバイスとDCを指定してGraphicsオブジェクトを作成する。
DLLgdiplus.dll呼出規約winapi

シグネチャ

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

Status GdipCreateFromHDC2(
    HDC hdc,
    HANDLE hDevice,
    GpGraphics** graphics
);

パラメーター

名前方向
hdcHDCin
hDeviceHANDLEin
graphicsGpGraphics**inout

戻り値の型: Status

各言語での呼び出し定義

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

Status GdipCreateFromHDC2(
    HDC hdc,
    HANDLE hDevice,
    GpGraphics** graphics
);
[DllImport("gdiplus.dll", ExactSpelling = true)]
static extern int GdipCreateFromHDC2(
    IntPtr hdc,   // HDC
    IntPtr hDevice,   // HANDLE
    IntPtr graphics   // GpGraphics** in/out
);
<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipCreateFromHDC2(
    hdc As IntPtr,   ' HDC
    hDevice As IntPtr,   ' HANDLE
    graphics As IntPtr   ' GpGraphics** in/out
) As Integer
End Function
' hdc : HDC
' hDevice : HANDLE
' graphics : GpGraphics** in/out
Declare PtrSafe Function GdipCreateFromHDC2 Lib "gdiplus" ( _
    ByVal hdc As LongPtr, _
    ByVal hDevice As LongPtr, _
    ByVal graphics 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

GdipCreateFromHDC2 = ctypes.windll.gdiplus.GdipCreateFromHDC2
GdipCreateFromHDC2.restype = ctypes.c_int
GdipCreateFromHDC2.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    wintypes.HANDLE,  # hDevice : HANDLE
    ctypes.c_void_p,  # graphics : GpGraphics** in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipCreateFromHDC2 = Fiddle::Function.new(
  lib['GdipCreateFromHDC2'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_VOIDP,  # hDevice : HANDLE
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics** in/out
  ],
  Fiddle::TYPE_INT)
#[link(name = "gdiplus")]
extern "system" {
    fn GdipCreateFromHDC2(
        hdc: *mut core::ffi::c_void,  // HDC
        hDevice: *mut core::ffi::c_void,  // HANDLE
        graphics: *mut *mut GpGraphics  // GpGraphics** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipCreateFromHDC2(IntPtr hdc, IntPtr hDevice, IntPtr graphics);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipCreateFromHDC2' -Namespace Win32 -PassThru
# $api::GdipCreateFromHDC2(hdc, hDevice, graphics)
#uselib "gdiplus.dll"
#func global GdipCreateFromHDC2 "GdipCreateFromHDC2" sptr, sptr, sptr
; GdipCreateFromHDC2 hdc, hDevice, varptr(graphics)   ; 戻り値は stat
; hdc : HDC -> "sptr"
; hDevice : HANDLE -> "sptr"
; graphics : GpGraphics** 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 GdipCreateFromHDC2 "GdipCreateFromHDC2" sptr, sptr, var
; res = GdipCreateFromHDC2(hdc, hDevice, graphics)
; hdc : HDC -> "sptr"
; hDevice : HANDLE -> "sptr"
; graphics : GpGraphics** 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 GdipCreateFromHDC2(HDC hdc, HANDLE hDevice, GpGraphics** graphics)
#uselib "gdiplus.dll"
#cfunc global GdipCreateFromHDC2 "GdipCreateFromHDC2" intptr, intptr, var
; res = GdipCreateFromHDC2(hdc, hDevice, graphics)
; hdc : HDC -> "intptr"
; hDevice : HANDLE -> "intptr"
; graphics : GpGraphics** 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")
	procGdipCreateFromHDC2 = gdiplus.NewProc("GdipCreateFromHDC2")
)

// hdc (HDC), hDevice (HANDLE), graphics (GpGraphics** in/out)
r1, _, err := procGdipCreateFromHDC2.Call(
	uintptr(hdc),
	uintptr(hDevice),
	uintptr(graphics),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
function GdipCreateFromHDC2(
  hdc: THandle;   // HDC
  hDevice: THandle;   // HANDLE
  graphics: Pointer   // GpGraphics** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreateFromHDC2';
result := DllCall("gdiplus\GdipCreateFromHDC2"
    , "Ptr", hdc   ; HDC
    , "Ptr", hDevice   ; HANDLE
    , "Ptr", graphics   ; GpGraphics** in/out
    , "Int")   ; return: Status
●GdipCreateFromHDC2(hdc, hDevice, graphics) = DLL("gdiplus.dll", "int GdipCreateFromHDC2(void*, void*, void*)")
# 呼び出し: GdipCreateFromHDC2(hdc, hDevice, graphics)
# hdc : HDC -> "void*"
# hDevice : HANDLE -> "void*"
# graphics : GpGraphics** 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)。