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Re: Gnustep + mac + windows? Possible?

From: Fabien VALLON
Subject: Re: Gnustep + mac + windows? Possible?
Date: Wed, 18 Sep 2002 18:23:34 +0200
User-agent: Mutt/1.3.25i

Eric Dahlman (address@hidden) a écrit:
> Howdy,
> I am starting on a new project which needs to have a cross platform GUI 
> and I was wondering how practical that would be using GNUstep and 
> Cocoa.  Specifically...
> How hard would it be to port a Cocoa application to GNUStep?
> How hard is the other direction?
> I should support Unix, Macs and Windows is the latter useable?  Do I 
> need to install an X server?  Would it be possible to have a click and 
> drool kind of windows installation?
> If I can keep the core functionality the same I have no qualms about 
> having varying levels of functionality on the different platforms.  I 
> intend to do the dog and pony stuff on the Mac so that will have to be 
> tight and I would like to have the Unix version be as close as possible 
> but I understand Windows is kind of behind and I can live with that, if 
> it at least mostly works...
> Finally, this project is in most preliminary of planning stages so 
> could you also give me any advice for what types of gotchas we need to 
> look out for if we go down this road.  I am at liberty to design into 
> the system whatever I need to make this a painless as possible.
> Thanks for all your help!
> -Eric

My little experience :
- It's easier from GNUstep to Cocoa than Cocoa to GNUstep.

If you start with Cocoa.
- Be careful with Cocoa.h includes
- do not use CoreFoundation
- do not use C++
- do not Quicktime or other propriatory extention
- you need to conver .nib (IB if you use it) to .gorm
and Gorm is good enough for most of the work
- do not use NSToolBar (I/we need to finish the GNUstep implementation)
- do not use Drawer (it is not implmented in GNUstep, and it is just ugly :)

my 0.2 cents 


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