Thank you for all provided details.
By default the RibbonWindow uses the Windows OS
as in your case. In order to apply ours, you need to set the RadRibbonWindow.IsWindowsThemeEnabled
property in the Static constructor and follow the instructions from our help.
However if you set the VisualStudio2013 theme, a different style for the buttons will be applied as shown in the attached screenshot and I am not sure that this is wanted.
I have tested your scenario and confirm that there is such right margin to the Close button when the OS template is used in Windows10. Please find here the public item in our feedback portal
which you can follow. I have updated your telerik points as well.
Regarding the Popup position, I believe that this is the same issue as reported in our forum and logged as feature request in our feedback portal
. You can vote for it and this way automatically follow it. Meanwhile please let me know whether the suggested workaround there works for you.
Basically, there is a default popups' alignment which is relative to its owner. This is controlled via a Windows setting called Handedness. You can check the following blog post to see how to change it. Currently our RibbonView control doesn't take into account the Right-handed setting. When we plan to implement the feature request, this will be supported out-of-the-box.
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