[Lazarus] High-DPI TImageList

[Ondrej Pokorny]

On 05.02.2018 14:07, Werner Pamler via Lazarus wrote:
> The high-DPI imagelist adds a new entry to the lfm file, "BitmapAdv". 
> Is this really absolutely necessary in all cases, for example if the 
> imagelist contains only standard-resolution images?

Fixed.

> The problem is that once a form with an image list has been opened by 
> Laz trunk it cannot be opened by Laz 1.8 or older any more without an 
> error message and the need to remove this new entry.

Feel free to improve the dialog.

> In particular, this is an issue for third-party components where the 
> author must be very careful to save demo forms with Laz 1.8, not with 
> trunk.

Lazarus is perfectly backwards compatible. E.g. If you want to support 
1.6, write your demos in 1.6 -> 1.8 and 1.9 will open your project 
without problems.

Ondrej