[DUG] Button hints access violation

[Robert Martin]

Hi John

We once had an app (D2007) that would produce an access violation on 
close if the speed button hint had been shown.  Hints weren't required 
and so we got around the issue by disabling them.

Some years later I discovered a memory leak in the app.  Fixing this 
leak allowed the app to run with hints !

Long story short, try looking for a memory leak :)

Cheers
Rob





On 2/07/2015 2:37 p.m., John Bird wrote:
> Here is an odd one – I have only seen this on one PC (Windows 7 64 bit),
> and on that PC only sometimes – mainly it behaves.
> One program I have written in Delphi 2007 has buttons and controls with
> hints showing (set up the standard way in IDE at design time).
> Sometimes on mousing over the control, it will throw a Windows exception
> and otherwise keeps running OK – but it cannot show the hint.
> “Access violation at address 0047F6E0 in module Dfind.exe.  Read of
> address 00000004.”
> Any ideas?
>
>
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