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PSPropertyBag_ReadType

関数
プロパティバッグから指定型の値を読み取る。
DLLPROPSYS.dll呼出規約winapi対応OSWindows 7 以降
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シグネチャ

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

HRESULT PSPropertyBag_ReadType(
    IPropertyBag* propBag,
    LPCWSTR propName,
    VARIANT* var,
    VARENUM type
);

パラメーター

名前型方向説明
propBagIPropertyBag*in値を読み出す対象のプロパティバッグ。
propNameLPCWSTRin読み出すプロパティの名前。
varVARIANT*out読み出した値を受け取るVARIANT出力先。
typeVARENUMin期待する値の型を示すVARENUM。読み出し時に型変換される。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT PSPropertyBag_ReadType(
    IPropertyBag* propBag,
    LPCWSTR propName,
    VARIANT* var,
    VARENUM type
);
[DllImport("PROPSYS.dll", ExactSpelling = true)]
static extern int PSPropertyBag_ReadType(
    IntPtr propBag,   // IPropertyBag*
    [MarshalAs(UnmanagedType.LPWStr)] string propName,   // LPCWSTR
    IntPtr var,   // VARIANT* out
    ushort type   // VARENUM
);
<DllImport("PROPSYS.dll", ExactSpelling:=True)>
Public Shared Function PSPropertyBag_ReadType(
    propBag As IntPtr,   ' IPropertyBag*
    <MarshalAs(UnmanagedType.LPWStr)> propName As String,   ' LPCWSTR
    var As IntPtr,   ' VARIANT* out
    type As UShort   ' VARENUM
) As Integer
End Function
' propBag : IPropertyBag*
' propName : LPCWSTR
' var : VARIANT* out
' type : VARENUM
Declare PtrSafe Function PSPropertyBag_ReadType Lib "propsys" ( _
    ByVal propBag As LongPtr, _
    ByVal propName As LongPtr, _
    ByVal var As LongPtr, _
    ByVal type As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

PSPropertyBag_ReadType = ctypes.windll.propsys.PSPropertyBag_ReadType
PSPropertyBag_ReadType.restype = ctypes.c_int
PSPropertyBag_ReadType.argtypes = [
    ctypes.c_void_p,  # propBag : IPropertyBag*
    wintypes.LPCWSTR,  # propName : LPCWSTR
    ctypes.c_void_p,  # var : VARIANT* out
    ctypes.c_ushort,  # type : VARENUM
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('PROPSYS.dll')
PSPropertyBag_ReadType = Fiddle::Function.new(
  lib['PSPropertyBag_ReadType'],
  [
    Fiddle::TYPE_VOIDP,  # propBag : IPropertyBag*
    Fiddle::TYPE_VOIDP,  # propName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # var : VARIANT* out
    -Fiddle::TYPE_SHORT,  # type : VARENUM
  ],
  Fiddle::TYPE_INT)
#[link(name = "propsys")]
extern "system" {
    fn PSPropertyBag_ReadType(
        propBag: *mut core::ffi::c_void,  // IPropertyBag*
        propName: *const u16,  // LPCWSTR
        var: *mut VARIANT,  // VARIANT* out
        type: u16  // VARENUM
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("PROPSYS.dll")]
public static extern int PSPropertyBag_ReadType(IntPtr propBag, [MarshalAs(UnmanagedType.LPWStr)] string propName, IntPtr var, ushort type);
"@
$api = Add-Type -MemberDefinition $sig -Name 'PROPSYS_PSPropertyBag_ReadType' -Namespace Win32 -PassThru
# $api::PSPropertyBag_ReadType(propBag, propName, var, type)
#uselib "PROPSYS.dll"
#func global PSPropertyBag_ReadType "PSPropertyBag_ReadType" sptr, sptr, sptr, sptr
; PSPropertyBag_ReadType propBag, propName, varptr(var), type   ; 戻り値は stat
; propBag : IPropertyBag* -> "sptr"
; propName : LPCWSTR -> "sptr"
; var : VARIANT* out -> "sptr"
; type : VARENUM -> "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 "PROPSYS.dll"
#cfunc global PSPropertyBag_ReadType "PSPropertyBag_ReadType" sptr, wstr, var, int
; res = PSPropertyBag_ReadType(propBag, propName, var, type)
; propBag : IPropertyBag* -> "sptr"
; propName : LPCWSTR -> "wstr"
; var : VARIANT* out -> "var"
; type : VARENUM -> "int"
; ※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: 
; HRESULT PSPropertyBag_ReadType(IPropertyBag* propBag, LPCWSTR propName, VARIANT* var, VARENUM type)
#uselib "PROPSYS.dll"
#cfunc global PSPropertyBag_ReadType "PSPropertyBag_ReadType" intptr, wstr, var, int
; res = PSPropertyBag_ReadType(propBag, propName, var, type)
; propBag : IPropertyBag* -> "intptr"
; propName : LPCWSTR -> "wstr"
; var : VARIANT* out -> "var"
; type : VARENUM -> "int"
; ※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 (
	propsys = windows.NewLazySystemDLL("PROPSYS.dll")
	procPSPropertyBag_ReadType = propsys.NewProc("PSPropertyBag_ReadType")
)

// propBag (IPropertyBag*), propName (LPCWSTR), var (VARIANT* out), type (VARENUM)
r1, _, err := procPSPropertyBag_ReadType.Call(
	uintptr(propBag),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(propName))),
	uintptr(var),
	uintptr(type),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function PSPropertyBag_ReadType(
  propBag: Pointer;   // IPropertyBag*
  propName: PWideChar;   // LPCWSTR
  var: Pointer;   // VARIANT* out
  type: Word   // VARENUM
): Integer; stdcall;
  external 'PROPSYS.dll' name 'PSPropertyBag_ReadType';
result := DllCall("PROPSYS\PSPropertyBag_ReadType"
    , "Ptr", propBag   ; IPropertyBag*
    , "WStr", propName   ; LPCWSTR
    , "Ptr", var   ; VARIANT* out
    , "UShort", type   ; VARENUM
    , "Int")   ; return: HRESULT
●PSPropertyBag_ReadType(propBag, propName, var, type) = DLL("PROPSYS.dll", "int PSPropertyBag_ReadType(void*, char*, void*, int)")
# 呼び出し: PSPropertyBag_ReadType(propBag, propName, var, type)
# propBag : IPropertyBag* -> "void*"
# propName : LPCWSTR -> "char*"
# var : VARIANT* out -> "void*"
# type : VARENUM -> "int"
# 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)。