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<div class="moz-cite-prefix">It will definitely occur if the
instance is nil.<br>
<br>
<br>
Cheers <br>
On 14/11/2013 3:51 p.m., Ross Levis wrote:<br>
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<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">I’ve got a strange
error occurring for just one user where this procedure is
failing...<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">procedure
TCustomDetails.SetModified(Modify: Boolean);<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">begin<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> FModified :=
Modify;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> if Modify then<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> begin<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> if Self is
TCategoryDetails then MainForm.CategoryChanged := True<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> else
MainForm.SpotChanged := True;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"> end;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">end;<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">TCategoryDetails and
another class is inherited from TCustomDetails.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal">Access violation at address 004047DC in
module 'SPLCreator.exe'. Read of address FFFFFFDF.<o:p></o:p></p>
<p class="MsoNormal">main thread ($87c):<o:p></o:p></p>
<p class="MsoNormal">004047dc SPLCreator.exe
System TObject.InheritsFrom<o:p></o:p></p>
<p class="MsoNormal">00404742 SPLCreator.exe
System @IsClass<o:p></o:p></p>
<p class="MsoNormal">005dc6a6 SPLCreator.exe SPMain 3831
+4 TCustomDetails.SetModified<o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">Would this happen if
Self was nil or invalid? I don’t see how that could happen
but just wondering how this can happen.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;color:#1F497D">Ross.<o:p></o:p></span></p>
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