public unsafe void CopyFromIndirect(object value)
{
VarEnum vt = (VarEnum)(((int)this.VariantType) & ~((int)VarEnum.VT_BYREF));
if (value == null)
{
if (vt == VarEnum.VT_DISPATCH || vt == VarEnum.VT_UNKNOWN || vt == VarEnum.VT_BSTR)
{
*(IntPtr *)this._typeUnion._unionTypes._byref = IntPtr.Zero;
}
return;
}
if ((vt & VarEnum.VT_ARRAY) != 0)
{
Variant vArray;
Marshal.GetNativeVariantForObject(value, (IntPtr)(void *)&vArray);
*(IntPtr *)this._typeUnion._unionTypes._byref = vArray._typeUnion._unionTypes._byref;
return;
}
switch (vt)
{
case VarEnum.VT_I1:
*(sbyte *)this._typeUnion._unionTypes._byref = (sbyte)value;
break;
case VarEnum.VT_UI1:
*(byte *)this._typeUnion._unionTypes._byref = (byte)value;
break;
case VarEnum.VT_I2:
*(short *)this._typeUnion._unionTypes._byref = (short)value;
break;
case VarEnum.VT_UI2:
*(ushort *)this._typeUnion._unionTypes._byref = (ushort)value;
break;
case VarEnum.VT_BOOL:
// VARIANT_TRUE = -1
// VARIANT_FALSE = 0
*(short *)this._typeUnion._unionTypes._byref = (bool)value ? (short)-1 : (short)0;
break;
case VarEnum.VT_I4:
case VarEnum.VT_INT:
*(int *)this._typeUnion._unionTypes._byref = (int)value;
break;
case VarEnum.VT_UI4:
case VarEnum.VT_UINT:
*(uint *)this._typeUnion._unionTypes._byref = (uint)value;
break;
case VarEnum.VT_ERROR:
*(int *)this._typeUnion._unionTypes._byref = ((ErrorWrapper)value).ErrorCode;
break;
case VarEnum.VT_I8:
*(long *)this._typeUnion._unionTypes._byref = (long)value;
break;
case VarEnum.VT_UI8:
*(ulong *)this._typeUnion._unionTypes._byref = (ulong)value;
break;
case VarEnum.VT_R4:
*(float *)this._typeUnion._unionTypes._byref = (float)value;
break;
case VarEnum.VT_R8:
*(double *)this._typeUnion._unionTypes._byref = (double)value;
break;
case VarEnum.VT_DATE:
*(double *)this._typeUnion._unionTypes._byref = ((DateTime)value).ToOADate();
break;
case VarEnum.VT_UNKNOWN:
*(IntPtr *)this._typeUnion._unionTypes._byref = Marshal.GetIUnknownForObject(value);
break;
case VarEnum.VT_DISPATCH:
*(IntPtr *)this._typeUnion._unionTypes._byref = Marshal.GetComInterfaceForObject <object, IDispatch>(value);
break;
case VarEnum.VT_BSTR:
*(IntPtr *)this._typeUnion._unionTypes._byref = Marshal.StringToBSTR((string)value);
break;
case VarEnum.VT_CY:
*(long *)this._typeUnion._unionTypes._byref = decimal.ToOACurrency((decimal)value);
break;
case VarEnum.VT_DECIMAL:
*(decimal *)this._typeUnion._unionTypes._byref = (decimal)value;
break;
case VarEnum.VT_VARIANT:
Marshal.GetNativeVariantForObject(value, this._typeUnion._unionTypes._byref);
break;
default:
throw new ArgumentException();
}
}
