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Bug 1123

Summary: SDL_WINDOWPOS_CENTERED does not work correctly
Product: SDL Reporter: Daniel <daniel350>
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: 2.0.0   
Hardware: x86   
OS: Windows 7   

Description Daniel 2011-02-15 01:10:48 UTC 
After spending 15 minutes wondering why all the appropriate functions returned success codes on creating my window, yet there was nothing to show for it. I realized the following ?constant? does not work correctly on Windows 7.
It does work as expected on Ubuntu 10.10; my other platform.

This was tested through: SDL_CreateWindow(name, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, flags);

I changed it to 0,0. And the window appeared as expected.
Comment 1 Sam Lantinga 2011-02-15 16:57:05 UTC 
I just tried this in Windows 7 and it worked with the latest code:
http://www.libsdl.org/tmp/SDL-1.3.zip

Can you retry with the latest snapshot?
Are you using a single monitor or multi-monitor setup?
Comment 2 Daniel 2011-02-15 20:09:56 UTC 
Works correctly with latest build, but not yesterdays (lol).

Cheers, fixed.
Comment 3 Sam Lantinga 2011-02-15 21:56:43 UTC 
Great, thanks! :)
Comment 4 Daniel 2011-02-15 22:34:46 UTC 
OK, tests are as follows:

Ubuntu 10.10 - ATI HD4890 - Works
Windows 7 - Intel HD Graphics - Works
Windows 7 - ATI HD4890 - Fails (as original bug posted).

I'm not sure what relevant information to gather, they are all running the same source code/version, Windows compiled with the same version of Visual Studio C++ Express 2010. Ubuntu obviously g++.

The Ubuntu 4890 and Windows 7 4890 are the same machine, both with up to date ATI drivers.

No idea.
Comment 5 Sam Lantinga 2011-02-15 23:08:28 UTC 
Can you try again?  I just fixed a bunch of issues with windows display handling:
http://hg.libsdl.org/SDL/rev/75f5ff92ad08
Comment 6 Daniel 2011-02-15 23:34:57 UTC 
Thats fixed it. Well done.
Comment 7 Sam Lantinga 2011-02-16 00:35:48 UTC 
Great, thanks!