public static void Write(this IPropertyBag2 propertyBag2, string propertyName, object?value)
{
PROPBAG2 propBag = new PROPBAG2();
propBag.pstrName = Marshal.StringToCoTaskMemUni(propertyName);
try
{
propertyBag2.Write(1, new[] { propBag }, new[] { value });
}
finally
{
Marshal.FreeCoTaskMem(propBag.pstrName);
}
}
public static object?Read(this IPropertyBag2 propertyBag2, string propertyName)
{
PROPBAG2 propBag = new PROPBAG2();
propBag.pstrName = Marshal.StringToCoTaskMemUni(propertyName);
try
{
object?[] values = new object?[1];
int[] errors = new int[1];
propertyBag2.Read(1, new[] { propBag }, null, values, errors);
if (errors[0] != 0)
{
throw new COMException("Could not read property.", errors[0]);
}
return(values[0]);
}
finally
{
Marshal.FreeCoTaskMem(propBag.pstrName);
}
}
