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Bug Report T850119
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The background in a submenu's drop-down window flickers if a bar manager's MenuAnimation property is set to maSlide or maUnfold

created 5 years ago (modified 5 years ago)

Hello,

After migration from 18.2.7 to 18.2.13 the dxBarManager main menu animation is slower and has strange display during the animation (using slide or unfold).
Here is a video that shows the issue.

Thanks for your help.

Regards
Sylvain

[Attachment removed by DevExpress]

Show previous comments (2)
DevExpress Support Team 5 years ago

    Hello,

    May I make the content of this ticket visible to other visitors of our site? We have found a solution, so it may be useful to them.
    I can remove your attached video if necessary.

    S S
    SylvainG 5 years ago

      Yes please, remove vidéo before making it public.
      Does the fix consists of commenting the 2 lines :
        if HasBackground then
          FillBackground(Message.DC, ClientRect, ToolbarBrush, clNone, True);

      ?

      DevExpress Support Team 5 years ago

        Thanks.

        No. It uses the IsAnimationRunning method:

        Delphi
        procedure TdxBarSubMenuControl.WMEraseBkgnd(var Message: TWMEraseBkgnd);
begin
  if HasBackground and not IsAnimationRunning then
    FillBackground(Message.DC, ClientRect, ToolbarBrush, clNone, True);
  Message.Result := 1;
end;
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        Answers approved by DevExpress Support

        created 5 years ago

        We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

        Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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