Wrong y-postion of checkboxes in high-dpi display mode

[joachimmarder]

Checkboxes are not properly vertically centered at 175% display scaling.

Screenshot taken from Advanced demo project, page "General Abilities", compiled with XE8 on Windows 10x64.

[sanjayssk]

I can't reproduce this problem on Windows 10 and Windows 8.1. Has this been fixed?

[joachimmarder]

No, it has not been Fixed. New Screenshot of GitHub master, Advanced demo project, page "General Abilities", compiled with 10.1 Berlin on Windows 10x64 @175%:

[sanjayssk]

Here is what I see on the same, compiled with XE4 and on Win 10x64 @175% on
1920 X 1080. What can be different? Can you send me your EXE file to test?
Thanks.

[image: Inline image 1]

On Tue, Sep 13, 2016 at 12:49 AM, Joachim Marder notifications@github.com
wrote:

No, it has not been Fixed. New Screenshot from Advanced demo project, page
"General Abilities", compiled with 10.1 Berlin on Windows 10x64 @175
https://github.com/175%:
[image: 2016-09-12 21_14_13-virtual treeview features demo]
https://cloud.githubusercontent.com/assets/10615289/18449213/9ef568aa-792e-11e6-8d10-1a757eb726af.png

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[joachimmarder]

Reason is that position is always calculated based on non-themed checkbox sizes retrieved through GetSystemMetrics(SM_CXMENUCHECK) done in CreateSystemImageSet(). But those are larger than the themed checkboxes (e.g. 29px vs. 20px at 175% on Windows 10). The Y-position is calculated in AdjustImageBorder().

[joachimmarder]

Reason is that position is always calculated based on non-themed checkbox sizes retrieved through GetSystemMetrics(SM_CXMENUCHECK) done in CreateSystemImageSet(). But those are larger than the themed checkboxes (e.g. 29px vs. 20px at 175% on Windows 10). The Y-position is calculated in AdjustImageBorder().