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Stefano Gardini
Feb 10, 2016, 9:54:36 AM2/10/16
to Eto.Forms
I create a custom control inherited from Drawable. I draw rectangles (drawing test) and I wait few seconds: control clear area. In events Paint and SizeChanged I re-draw my rectangles but after few second ... voilà it clear itself.
VS 2015 on Windows 7.
Solutions? Ideas?
Eng. Stefano Gardini
curtis
Feb 13, 2016, 2:08:09 PM2/13/16
to Eto.Forms
Hi Stefano,
Is your code available somewhere or can you create a simple repro of the problem? Also, what Eto platform are you running? Wpf, WinForms, D2D?
Thanks!
Curtis.
Stefano Gardini
Feb 14, 2016, 5:08:29 AM2/14/16
to eto-...@googlegroups.com
Thanks for your help.
I created a private repo to bitbucket ad I set your email permissions to read/write
Command to receive repo: git clone https://prot...@bitbucket.org/protrader/eto-ptchartcontrol.git
The project in intended to run on WinForms and Xamarin.Mac
The repo is for WinForm version (and the problem is in this version)
In Mac (OSX ElCapitain) I have another problem: when I run Draw method, CreateGraphic method return a NullException.
Hava a nice day.
Eng. Stefano Gardini
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curtis
Feb 14, 2016, 5:16:35 AM2/14/16
to Eto.Forms
Hi Stefano,
I see your problem, here.
You need to use the PaintEventArgs.Graphics property you are given in the Paint event here.
the Drawable.CreateGraphics() is only useful when you want to paint directly to the screen outside of the paint event, and not retain its state (which makes sense with the problem you're running into).
Hope this helps!
Curtis.
On Sunday, February 14, 2016 at 2:08:29 AM UTC-8, Stefano Gardini wrote:
Thanks for your help.I created a private repo to bitbucket ad I set your email permissions to read/write
Command to receive repo: git clone https://protrader@bitbucket.org/protrader/eto-ptchartcontrol.git
The project in intended to run on WinForms and Xamarin.MacThe repo is for WinForm version (and the problem is in this version)In Mac (OSX ElCapitain) I have another problem: when I run Draw method, CreateGraphic method return a NullException.Hava a nice day.Eng. Stefano Gardini
Stefano Gardini
Feb 14, 2016, 5:58:56 AM2/14/16
to eto-...@googlegroups.com
Thanks for yor help. I solved.
Eng. Stefano Gardini
2016-02-14 11:16 GMT+01:00 curtis <curtis....@gmail.com>:
Hi Stefano,I see your problem, here.You need to use the PaintEventArgs.Graphics property you are given in the Paint event here.the Drawable.CreateGraphics() is only useful when you want to paint directly to the screen outside of the paint event, and not retain its state (which makes sense with the problem you're running into).Hope this helps!Curtis.
On Sunday, February 14, 2016 at 2:08:29 AM UTC-8, Stefano Gardini wrote:
Thanks for your help.I created a private repo to bitbucket ad I set your email permissions to read/write
Command to receive repo: git clone https://prot...@bitbucket.org/protrader/eto-ptchartcontrol.git
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