Add switch "MoveTreeViewTextLocOnePixel" for update the drawing position of the Treeview control text

[LeafShi1]

Fixes #12601

Proposed changes

• Update the drawing position of the Treeview control text

Customer Impact

• The check box of the TreeView control can be fully displayed

Regression?

• No

Risk

• Minimal

Screenshots

Before

Create a form, add a TreevView with CheckBoxes=true and DrawMode=OwnerDrawText
In OnDrawNode event only set DrawDefault=true
Show the form: checkboxes are shown corrupted on the right border

After

The checkbox of the Treeview control can be fully displayed

Test methodology

• Manually

Test environment(s)

• .net 10.0.0-alpha.1.24611.1

Microsoft Reviewers: Open in CodeFlow

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.14689%. Comparing base (012e82d) to head (43ce18d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main      #12638         +/-   ##
===================================================
- Coverage   76.15013%   76.14689%   -0.00325%     
===================================================
  Files           3192        3192                 
  Lines         640167      640168          +1     
  Branches       47236       47237          +1     
===================================================
- Hits          487488      487468         -20     
- Misses        149165      149182         +17     
- Partials        3514        3518          +4     

Flag	Coverage Δ
Debug	76.14689% <0.00000%> (-0.00325%)	⬇️
integration	18.16356% <0.00000%> (-0.00183%)	⬇️
production	50.04710% <0.00000%> (-0.00756%)	⬇️
test	97.02604% <ø> (+0.00027%)	⬆️
unit	47.23458% <0.00000%> (-0.02795%)	⬇️

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[ricardobossan]

I tested the PR, and the reported issue appears to be resolved:

However, when DrawMode is set to OwnerDrawText, the node names disappear. Is this the intended behavior?

Other than that, the code looks good to me.

[Tanya-Solyanik]

@LeafShi1 @ricardobossan - had you tested this fix in different DPI settings?

[LeafShi1]

@LeafShi1 @ricardobossan - had you tested this fix in different DPI settings?

Tested on 225% DPI (The main screen is 225% DPI, the secondary screen is 100% DPI)

[Tanya-Solyanik]

@LeafShi1 - this might be a good issue to make conditional on an AppContext switch, we'll have to discuss it in a team meeting.
@merriemcgaw - we are changing layout by 1 pixel, it might be visible if customer had specific background to the tree nodes. DO you think this warrants an opt-out?

[merriemcgaw]

@Tanya-Solyanik can't hurt to have an opt-out, but I definitely don't think it is risky enough for opt-in. Let's go forward with the opt-out as an extra caution though. Just in case...