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Bug Report T541284
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An AV occurs when hovering the mouse pointer over a bar button, whose RepeatClick property is set to True, pressing the left mouse button and then right-clicking the button without releasing the left mouse button

created 8 years ago

If you activate a RepeatClick button with LMB (hold it!), then (accidentally) click and release MMB or RMB (still holding LMB!) a crash occurs leaving LMB.

My personal fix for this issue:

procedure TdxBarButtonControl.DoButtonPressTimer(Sender: TObject);
…
begin
  if NeedStopTimer then
    FreeAndNil(FButtonPressTimer)
  else
  begin
    // --> Fix
    if Assigned(FButtonPressTimer)then
    // <–
      FButtonPressTimer.Interval := cxButtonsRepeatPause;

if IsPressed and (HotPartIndex = bcpButton) then
      ButtonItem.DirectClick;
  end;
end;

Comments (1)
DevExpress Support Team 8 years ago

    Thank you for sharing your research results. I have reproduced this behavior and forwarded this ticket to our developers for research.

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    Answers approved by DevExpress Support

    created 8 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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