About BufferedDisplay property

elmec · Post by **elmec** » Tue Nov 12, 2013 6:19 am

When I set the BufferedDisplay property as true,
Why the wave wasn't drawed clearly?
Please find the attachment.

Narcís · Post by **Narcís** » Tue Nov 12, 2013 11:23 am

Hello,

That's not what we would expect. Could you please send us a simple example project we can run "as-is" to reproduce the problem here?

Thanks in advance.

elmec · Post by **elmec** » Tue Nov 12, 2013 1:59 pm

Reproduce steps:
1. Maximum the window size.
2. Check the "DoubleDisplay" checkbox.

Narcís · Post by **Narcís** » Tue Nov 12, 2013 2:30 pm

Hi elmec,

This looks like a Firemonkey for C++ Builder bug as I can not reproduce it with a Delphi HD Firemonkey application, which I attach. Could you please add it to bugzilla? Doing so you'll be identified as the creator of the issue and therefore notified about its evolution.

Thanks in advance.

elmec · Post by **elmec** » Wed Nov 13, 2013 1:05 am

I have added it to Bugzilla.

Bug 96 has been added to the databaseEmail sent to:...

elmec · Post by **elmec** » Wed Nov 13, 2013 2:28 am

Hello Narcís ,
If you have any temporary idea that can solve the problem,
please let us know.

We are going to release our software...

Thanks in advance.

Narcís · Post by **Narcís** » Wed Nov 13, 2013 7:52 am

elmec wrote:I have added it to Bugzilla.

Excellent, thanks. Please don't post the email addresses though.

elmec wrote:
elmec wrote:If you have any temporary idea that can solve the problem,
please let us know.

Not that I can think of for now. The only alternative would be setting BufferedDisplay to false.

Narcís · Post by **Narcís** » Wed Nov 13, 2013 8:15 am

Hi elmec,

BTW, this is only a Firemonkey problem, it works fine in VCL. So you could create VCL applications instead.

elmec · Post by **elmec** » Wed Nov 13, 2013 10:07 am

Hello Narcís ,
Thanks for your advice.
But it's impossible for us to change to VCL,
for we'll go to release our software this end of month...

IF you get to know anything that could help us, please let us know.

Thank you in advance.

Narcís · Post by **Narcís** » Thu Nov 14, 2013 8:09 am

Hi elmec,

Did you receive David Berneda's comments about this issue? He suggests a solution in comment 2.

elmec · Post by **elmec** » Thu Nov 14, 2013 12:01 pm

He suggests us to change TScaledLayout to TLayout..which we tried before.

But as a known TScrollPage tool bug, when it is resized,
it needs to remove series of TScrollPage tool, and assign series to it again.
We are afraid that it will slows down the speed by repainting again and again
whenever the form is resized, so we are using the TScaledLayout instead of TLayout
to contain TChart to avoid it resized every time.

About BufferedDisplay property

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