internal static extern HRESULT PropVariantGetStringElem(
[In] ref PropVariant propVar,
[In] uint iElem,
[Out][MarshalAs(UnmanagedType.LPWStr)] out string ppszVal);
internal static extern HRESULT PropVariantGetFileTimeElem(
[In] PropVariant propVar,
[In] uint iElem,
[Out][MarshalAs(UnmanagedType.Struct)] out FILETIME pftVal);
internal static extern HRESULT PropVariantGetInt32Elem(
[In] PropVariant propVar,
[In] uint iElem,
[Out] out Int32 pnVal);
internal static extern HRESULT InitPropVariantFromInt16Vector(
[In] Int16[] prgn,
uint cElems,
[Out] out PropVariant ppropvar);
internal static extern HRESULT InitPropVariantFromResource(
[In] IntPtr hinst,
uint id,
[Out] out PropVariant ppropvar);
internal static extern HRESULT InitPropVariantFromBuffer(
[In] byte[] pv,
uint cb,
[Out] out PropVariant ppropvar);
internal static extern HRESULT InitPropVariantFromFileTime(
[In] ref FILETIME pftIn,
[Out] out PropVariant ppropvar);
internal static extern HRESULT PropVariantChangeType(
[Out] out PropVariant ppropvarDest,
[In] ref PropVariant propvarSrc,
[In] int flags,
[In] ushort vt);
internal static extern HRESULT PropVariantClear([In] ref PropVariant pvar);
internal static extern HRESULT FreePropVariantArray(uint cVariants, [In][Out] ref PropVariant rgvars);
internal static extern HRESULT InitPropVariantVectorFromPropVariant(
[In] ref PropVariant propvarSingle,
[Out] out PropVariant[] propvarVector);
internal static extern HRESULT InitPropVariantFromStringVector(
[In] string[] prgsz,
uint cElems,
[Out] out PropVariant ppropvar);
internal static extern HRESULT InitPropVariantFromStringAsVector(
[In] string psz,
[Out] out PropVariant ppropvar);
internal static extern void ClearPropVariantArray([In] ref PropVariant rgPropVar, uint vVars);
internal static extern HRESULT PropVariantGetUInt64Elem(
[In] PropVariant propVar,
[In] uint iElem,
[Out] out UInt64 pnVal);
internal static extern HRESULT PropVariantCopy([Out] out PropVariant pDst, [In] ref PropVariant pSrc);
internal static extern HRESULT InitPropVariantFromBooleanVector(
[In] bool[] prgf,
uint cElems,
[Out] out PropVariant ppropvar);
internal static extern HRESULT PropVariantGetBooleanElem(
[In] PropVariant propVar,
[In] uint iElem,
[Out][MarshalAs(UnmanagedType.Bool)] out bool pfVal);
internal static extern HRESULT InitPropVariantFromDoubleVector(
[In] double[] prgn,
uint cElems,
[Out] out PropVariant ppropvar);
internal static extern HRESULT PropVariantGetDoubleElem(
[In] PropVariant propVar,
[In] uint iElem,
[Out] out double pnVal);
internal static extern HRESULT InitPropVariantFromFileTimeVector(
[In] FILETIME[] prgft,
uint cElems,
[Out] out PropVariant ppropvar);
internal static extern int PropVariantGetElementCount([In] PropVariant propVar);
/// <summary>
/// 指定した<paramref name="value" />から<see cref="PropVariant" />を作成します。
/// Create a new instance of the <see cref="PropVariant" /> struct
/// to the specified <see cref="object" />.
/// </summary>
/// <param name="value">オブジェクト。</param>
/// <returns>作成した<see cref="PropVariant" />。</returns>
public static PropVariant FromObject(object value)
{
if (value == null)
{
var result = new PropVariant();
result.varType = (ushort)VarEnum.VT_EMPTY;
return(result);
}
else
{
#region Create Value
if (value is string)
{
return(FromString((string)value));
}
else if (value is string[])
{
return(FromStringArray((string[])value));
}
else if (value is sbyte)
{
return(FromInt8((sbyte)value));
}
else if (value is byte)
{
return(FromUInt8((byte)value));
}
else if (value is Int16)
{
return(FromInt16((Int16)value));
}
else if (value is UInt16)
{
return(FromUInt16((UInt16)value));
}
else if (value is Int32)
{
return(FromInt32((Int32)value));
}
else if (value is UInt32)
{
return(FromUInt32((UInt32)value));
}
else if (value is Int64)
{
return(FromInt64((Int64)value));
}
else if (value is UInt64)
{
return(FromUInt64((UInt64)value));
}
else if (value is float)
{
return(FromSingle((float)value));
}
else if (value is double)
{
return(FromDouble((double)value));
}
else if (value is bool)
{
return(FromBoolean((bool)value));
}
else if (value is Guid)
{
return(FromGuid((Guid)value));
}
#endregion
}
throw new InvalidOperationException();
}
internal static extern HRESULT InitPropVariantFromPropVariantVectorElem(
[In] ref PropVariant propvarIn,
uint iElem,
[Out] out PropVariant ppropvar);