private int GetCount()
{
int count;
Win32ComException.Try(GetCountNative(out count), InterfaceName, "GetCount");
return(count);
}
/// <summary>
/// Gets data for a specific property.
/// </summary>
/// <param name="key">The <see cref="PropertyKey"/> of the property. The key can be obtained by calling the <see cref="GetKey"/> method.</param>
/// <returns>The data of the specified property.</returns>
public PropertyVariant GetValue(PropertyKey key)
{
PropertyVariant value;
int result = GetValueNative(key, out value);
Win32ComException.Try(result, InterfaceName, "GetValue");
return(value);
}
/// <summary>
/// Gets a property key from an item's array of properties.
/// </summary>
/// <param name="index">The zero-based index of the property key in the array of <see cref="PropertyKey"/> structures.</param>
/// <returns>The <see cref="PropertyKey"/>.</returns>
public PropertyKey GetKey(int index)
{
if (index >= Count)
{
throw new ArgumentOutOfRangeException("index");
}
PropertyKey key;
int result = GetAtNative(index, out key);
Win32ComException.Try(result, InterfaceName, "GetAt");
return(key);
}
/// <summary>
/// Saves a property change.
/// </summary>
/// <remarks>
/// For more information see
/// <see href="http://msdn.microsoft.com/en-us/library/windows/desktop/bb761470%28v=vs.85%29.aspx" />.
/// </remarks>
public void Commit()
{
Win32ComException.Try(CommitNative(), InterfaceName, "Commit");
}
/// <summary>
/// Sets a new property value, or replaces or removes an existing value.
/// </summary>
/// <param name="key">The <see cref="PropertyKey"/> of the property. The key can be obtained by calling the <see cref="GetKey"/> method.</param>
/// <param name="value">The new property data.</param>
public void SetValue(PropertyKey key, PropertyVariant value)
{
int result = SetValueNative(key, value);
Win32ComException.Try(result, InterfaceName, "SetValue");
}