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 protect background against Ctrl+V		  New Topic  Reply to Topic
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ZS Tekatec

Poland
20 Posts
Posted - Mar 31 2025 :  15:58:01  Show Profile  Reply
Hello

in your demo I've got empty background:




and then I click it and Paste (Ctrl+V) image from clipoard:



Is it possible that after Ctrl+V new image layer will be created and not background modified?

ZS

xequte

39278 Posts
Posted - Mar 31 2025 :  20:15:46  Show Profile  Reply
Hi

In the current beta you can prevent cutting and pasting to layer 0 using loProtectBackground.
There will also be finer control with TImageEnView.OnKeyboardShortcut.

procedure TMain.ImageEnView1KeyboardShortcut(Sender: TObject; Shortcut: TShortCut; var Allow: Boolean);
begin
  // Prevent pasting to the background layer
  if ( ImageEnView1.LayersCurrent = 0 ) and ( Shortcut = scCtrl or VK_V ) then
    Allow := False;
end;


You can email me for the beta.

Nigel
Xequte Software
www.imageen.com
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xequte

39278 Posts
Posted - Mar 31 2025 :  21:22:39  Show Profile  Reply
Also, from v14.0.1 if you enable LayerEditingMode, images will always be added as new layers rather than replacing the background content.

http://www.imageen.com/help/TImageEnView.LayerEditingMode.html

Nigel
Xequte Software
www.imageen.com
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ZS Tekatec

Poland
20 Posts
Posted - Sep 23 2025 :  09:08:34  Show Profile  Reply
thank you, it works, but now ungrateful users complain that they would like to paste some picture when there is only background - and they can't. When there is at least one object and this object is selected - then they can.
Is there any option to paste picture when only protected background exists?


ZS
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xequte

39278 Posts
Posted - Sep 24 2025 :  02:11:54  Show Profile  Reply
Hi

You should re-enable the Ctrl+V shortcut, and use the OnKeyboardShortcut event to control when it is activated:

http://www.imageen.com/help/TIEView.OnKeyboardShortcut.html

Nigel
Xequte Software
www.imageen.com
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ZS Tekatec

Poland
20 Posts
Posted - Sep 24 2025 :  04:51:44  Show Profile  Reply
Hi Nigel,

I checked it once again why I can't paste (Ctrl+V) in "Layers Demo" and the problem occurs when loProtectBackground is set on.
I would like to protect my background that no one will delete it or remove it but in the same time I would like to be able to paste some picture when there is only background present.






ZS
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xequte

39278 Posts
Posted - Sep 25 2025 :  01:18:29  Show Profile  Reply
Yes, I think you should just use a special case in the OnKeyboardShortcut event, i.e. write your own code to paste content to the background (to get around the loProtectBackground exclusion).

Nigel
Xequte Software
www.imageen.com
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