[Lasse]

Double buffering is irrelevant if the skin is active. AlphaSkins buffers itself. Without a skin, you can turn on double buffering with code or publish the property for IDE use by yourself.

[Flaps]

Hi Lasse,
Thank you for your reply – I really appreciate it. For some strange reason I am unable to see the content of my initial post – only your reply.
Anyway. My issue is that a project, which has worked fine, now suddenly gives me the “Error reading…property doublebuffering does not exist …” -error, when loading it into the D7 IDE. This error is given for a couple of AC components like spanels – which I just ignore initially.

When trying to run the project (from the IDE) I get the error: “Exception Class Ereaderror. Property doublebuffered does not exist….”. Trying to continue by stepping or running, just results in the application shutting down with an exception.

I’m not tampering with or setting the “doublebuffered” property – in fact I was quite unaware of this property as I’ve never delved into the details of AC – I use it solely for the skinning purposes.

The problem arose after installing a new version of AC but reverting to older versions of it does not fix the problem. I haven’t really spent a lot of time unistalling/reinstalling or upgrading AC as the early versions have been sufficint for me – so I might have done/deleted something I shouldn’t during the installation of the newer versions ?

Thanks for any suggestions you might have.

[Lasse]

Delphi 7 is 24 years old and can’t remember if it supported DoubleBuffering property. But if it does not, just search DoubleBuffering from your dfm files and removed it.

[Flaps]

Again, thank you for your reply. I’ll give that a go. The problem seems to emerge only when I try to load an old project. Starting a new project and using the latest components does not cause problems (save for the problems with skin compatibility?). I have however reverted to an old AC version in order to avoid the problem when working on older projects. This limits the choice of available compatible skins but that’s how it goes. Is there btw a way to differentiate between the different skins and the versions of AC with wich they are compatible ?

[Author]

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