DrawDibStart

関数

DrawDibによるストリーミング描画を開始する。

DLLMSVFW32.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// MSVFW32.dll
#include <windows.h>

BOOL DrawDibStart(
    INT_PTR hdd,
    DWORD rate
);

パラメーター

名前	型	方向
hdd	INT_PTR	in
rate	DWORD	in

戻り値の型: BOOL

各言語での呼び出し定義

// MSVFW32.dll
#include <windows.h>

BOOL DrawDibStart(
    INT_PTR hdd,
    DWORD rate
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSVFW32.dll", ExactSpelling = true)]
static extern bool DrawDibStart(
    IntPtr hdd,   // INT_PTR
    uint rate   // DWORD
);

<DllImport("MSVFW32.dll", ExactSpelling:=True)>
Public Shared Function DrawDibStart(
    hdd As IntPtr,   ' INT_PTR
    rate As UInteger   ' DWORD
) As Boolean
End Function

' hdd : INT_PTR
' rate : DWORD
Declare PtrSafe Function DrawDibStart Lib "msvfw32" ( _
    ByVal hdd As LongPtr, _
    ByVal rate 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

DrawDibStart = ctypes.windll.msvfw32.DrawDibStart
DrawDibStart.restype = wintypes.BOOL
DrawDibStart.argtypes = [
    ctypes.c_ssize_t,  # hdd : INT_PTR
    wintypes.DWORD,  # rate : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSVFW32.dll')
DrawDibStart = Fiddle::Function.new(
  lib['DrawDibStart'],
  [
    Fiddle::TYPE_INTPTR_T,  # hdd : INT_PTR
    -Fiddle::TYPE_INT,  # rate : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "msvfw32")]
extern "system" {
    fn DrawDibStart(
        hdd: isize,  // INT_PTR
        rate: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("MSVFW32.dll")]
public static extern bool DrawDibStart(IntPtr hdd, uint rate);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSVFW32_DrawDibStart' -Namespace Win32 -PassThru
# $api::DrawDibStart(hdd, rate)

#uselib "MSVFW32.dll"
#func global DrawDibStart "DrawDibStart" sptr, sptr
; DrawDibStart hdd, rate   ; 戻り値は stat
; hdd : INT_PTR -> "sptr"
; rate : DWORD -> "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。

#uselib "MSVFW32.dll"
#cfunc global DrawDibStart "DrawDibStart" sptr, int
; res = DrawDibStart(hdd, rate)
; hdd : INT_PTR -> "sptr"
; rate : DWORD -> "int"

; BOOL DrawDibStart(INT_PTR hdd, DWORD rate)
#uselib "MSVFW32.dll"
#cfunc global DrawDibStart "DrawDibStart" intptr, int
; res = DrawDibStart(hdd, rate)
; hdd : INT_PTR -> "intptr"
; rate : DWORD -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	msvfw32 = windows.NewLazySystemDLL("MSVFW32.dll")
	procDrawDibStart = msvfw32.NewProc("DrawDibStart")
)

// hdd (INT_PTR), rate (DWORD)
r1, _, err := procDrawDibStart.Call(
	uintptr(hdd),
	uintptr(rate),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DrawDibStart(
  hdd: NativeInt;   // INT_PTR
  rate: DWORD   // DWORD
): BOOL; stdcall;
  external 'MSVFW32.dll' name 'DrawDibStart';

result := DllCall("MSVFW32\DrawDibStart"
    , "Ptr", hdd   ; INT_PTR
    , "UInt", rate   ; DWORD
    , "Int")   ; return: BOOL

●DrawDibStart(hdd, rate) = DLL("MSVFW32.dll", "bool DrawDibStart(int, dword)")
# 呼び出し: DrawDibStart(hdd, rate)
# hdd : INT_PTR -> "int"
# rate : DWORD -> "dword"
# 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)。