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Hidden Layer(s)

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spetric

Croatia
308 Posts

Posted - May 03 2019 : 04:45:21

Is it possible to have layers that are not shown in TImageEnLayerMView?
Some kind of hidden (internal) layers.

TIA,
Siniša

yogiyang

India
725 Posts

Posted - May 04 2019 : 08:59:17

Check Nigel's reply to my similar query:
https://www.imageen.com/ieforum/topic.asp?TOPIC_ID=3782

Yogi Yang

spetric

Croatia
308 Posts

Posted - May 04 2019 : 14:54:01

Thanks Yogi.

So, in order to hide some layers (not only mask) what would be the best approach:
to use tag or group them under same group ID?

Siniša

xequte

38182 Posts

Posted - May 04 2019 : 20:26:36

Hi Sinisa

It would depend what rule determines whether a layers is to be hidden or not.

If it is too slow to check in the event, then just use the tag property:

https://www.imageen.com/help/TIELayer.Tag.html

Nigel
Xequte Software
www.imageen.com

spetric

Croatia
308 Posts

Posted - May 06 2019 : 16:23:03

Hi Nigel,

Tag property seems a good approach.
However, I still must check tag value inside IncludeLayer event, right?

xequte

38182 Posts

Posted - May 07 2019 : 17:13:31

Hi

Yes, there is no property (at this stage) to exclude a layer from TImageEnLayerMView, so you can just use tag for this.

Layer.Tag := ord( showThisLayer );


function TMyForm.IELayerMView1IncludeLayer(Sender: TObject; LayerIndex: integer; Layer: TIELayer; var Include: Boolean);
begin
  Include := Layer.Tag = 1;
end;

Nigel
Xequte Software
www.imageen.com

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