Re: PNG Transparency in Standalone EXE

You're probably going to have to ask on the wxPython list. This might  
be a 2.6.x issue or possibly a different DLL is getting used with the  
EXE and it doesn't properly support transparency with PNGs. At a  
minimum, you'll need to do some debug dumps of what is getting used  
on the different runs so you can verify the version of Python,  
wxPython, etc.; simply running the executable with the -s or -d  
option might be good enough for that.

ka

On May 22, 2007, at 9:21 AM, Phil Edwards wrote:

> Hi All:
>
> I'm written a short program for use at work - both the target and  
> development
> platform is WinXP and I have Python 2.4, wxPython 2.6.3.2 and  
> PythonCard
> 0.8.2 on the machine where I'm writing/testing the code.
>
> The program has the company logo displayed on the UI in the form of a
> transparent PNG graphic in the bottom right corner of the panel.  
> The logo
> displays perfectly when I run my code either from a DOS prompt or by a
> double-click on the .py file in explorer.
>
> When I package the program up into an EXE, using standaloneBuilder,  
> the
> resultant executable does not display the graphic correctly. It  
> shows up with
> a black background instead of transparent. I get the same result  
> regardless
> of whether I use pyInstaller or py2exe to do the conversion to EXE,  
> which
> suggests to me that the problem may be due to the altered execution
> environment that is present when running a standalone application.
>
> Problem is, I have absolutely no idea where to start looking to  
> troubleshoot
> this - can anybody offer any suggestions to get me going? The only  
> thing I
> was able to think of was explicitly setting the background colour  
> on the
> Image component so it matched the colour of the panel, but this  
> didn't make
> any difference.
>
> -- 
>
> Regards
>
> Phil Edwards
> Brighton, UK



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