differences between text/imagedata of image in LC6/8

[Tiemo Hollmann TB]

Hello,

in an old program I obviously tried to be very technically over correct when
copying an image and did:

1.       set the imagedata of img 2 to the imagedata of img 1

This worked up to LC 6.7. In LC8/9 I get a corrupted image (black and
stripes) in the target image.

What works in LC8/9 is

2.       set the text of img 2 to the text of img 1

and

3.       put img 1 into img 2

What is the correct syntax today? Is solution 2 and 3 the same and just an
alias (what it seems to me) or are there differences in details I do not
see?

And is there any explanation why the upward compatibility of solution 1 is
broken?

Thanks

Tiemo