[Lazarus] Possible Postscriptcanvas/QT Bug

[zeljko]

On Monday 26 of September 2011 22:17:10 David Copeland wrote:
> I have submitted a Mantis report (number 20354). When I rebuilt an app
> for QT I started getting access violations after a call to
> TPostscriptcanvas.GettextWidth.

btw. your test project is corrupted, missing main.lfm, but there's pstest.lfm 
which I copied into main.lfm ...

z.

> 
> TApplication.HandleException Access violation
>   Stack trace:
>   $000000000068FC1E line 3198 of qt/qtobjects.pas
>   $00000000005A78BD line 679 of qt/qtobject.inc
>   $000000000051554A line 176 of include/canvas.inc
>   $00000000005184CA line 1542 of include/canvas.inc
>   $00000000006B040F line 1142 of postscriptcanvas.pas
>   $000000000051864A line 1609 of include/canvas.inc
>   $00000000006B04EE line 1193 of postscriptcanvas.pas
>   $00000000006B6761 line 2086 of postscriptcanvas.pas
>   $000000000051895D line 1683 of include/canvas.inc
>   $00000000005160B0 line 489 of include/canvas.inc
>   $0000000000528F8E
>   $000000000047A10F line 51 of main.pas
>   $000000000047A291 line 68 of main.pas
>   $00000000005D9CCF line 2319 of include/control.inc
>   $00000000006067D6 line 62 of include/buttoncontrol.inc
>   $0000000000606ED5 line 174 of include/buttons.inc
>   $000000000060748D line 339 of include/buttons.inc
> 
> 
> 
> I was able to reproduce this in a simple test app, which I supplied with
> the report. Using SVN 32519, FPC 2.4.4, Linux x86_86, Suse 11.4.
> 
> Dave Copeland.
> 
> 
> 
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