On Tue, 26 Oct 2010 17:17:00 +1100
John <[email protected]> wrote:

> Can anyone enlighten me as to the likely cause(es) of a 
> "TControl.InvalidatePreferredSize loop detected" exception, and how one may 
> debug it ?  It is occurring in a frame, if that is significant, and it is the 
> frame that is specified in the exception.  Looking at the code in 
> TControl.InvalidatePreferredSize, it would appear that the frame must not 
> have a parent, but as it is occurring in the form designer, it is difficult 
> to debug.  I think it may not be happening at run time, but as it started 
> happening at  design time while I was in the middle of some "structural 
> changes", it is hard to get a lot of sense out of the program at run time.
> 
> Environment is WinXP SP3,  fpc SVN 16114 Laz SVN 27864.  (But it also 
> occurred on Laz SVN from a few weeks ago)

Do you use only standard LCL controls?

Mattias

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