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Bug 1682

Summary: Resize collapses window instantly to a size of 0 x 124.
Product: SDL Reporter: Marco Schmidt <marcotaugammaschmidt>
Component: eventsAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: critical    
Priority: P2 CC: fox_jmtbbk, philipp.wiesemann, vincent
Version: HG 2.0   
Hardware: x86   
OS: Windows 7   

Description Marco Schmidt 2013-01-06 06:49:45 UTC 
After sizing my main window (the only window in my application) through grabbing the window border with the mouse the window collapses instantly to a size of 0 x 124. In my application I can not resize the window to a normal size again.

I tried to reproduce the problem - and here a the minimal steps I found.  

I'm running WIN8 x64, VS2012Pro, HG SDL-2.0 tip, WIN32-Build.

Minimal steps to reproduce my problem: 

- open solution SDL_VS2012
- make testdraw2 the start project
- pass command line option --resize to the debuggee testdraw2
- starting the application testdraw2 
- try to resize the window
- the application window resizes to a minimal size 0 x 124.
- the application crashes to divide by zero .... (this is only the aftermath but a unhandled error condition)
Comment 1 Marco Schmidt 2013-01-07 05:53:54 UTC 
I reproduced the bug on WIN7 x64, VS2012Pro, HG SDL-2.0 tip, WIN32-Build too.
Comment 2 Marco Schmidt 2013-01-08 04:07:41 UTC 
Debugging under windows 7 reveals that possible the changes of revision 6788 (036f53f2f5aa31a3c23357c42aa36831dbcd9a53) lead to this behavior.
Comment 3 Marco Schmidt 2013-01-13 22:25:59 UTC 
Possibly setting the maximum width to Zero as default value leads to this behavior.
Comment 4 Vincent Ordy 2013-01-15 12:39:23 UTC 
I'm having the same problem on Win7 64-bit, VS2008Pro, SDL-2.0 from January 1st, Win32-build.

Obviously the problem is in src/video/windows/SDL_windowsevents.c in WIN_WindowProc.  When the maximum size is not initialized, info->ptMaxTrackSize is filled with a small size and Windows resizes the window.
Comment 5 Philipp Wiesemann 2013-01-30 13:01:40 UTC 
Maybe similar to bug 1704.
Comment 6 Sam Lantinga 2013-02-01 22:48:57 UTC 
*** Bug 1704 has been marked as a duplicate of this bug. ***
Comment 7 Sam Lantinga 2013-02-08 01:05:04 UTC 
Fixed, thanks!
http://hg.libsdl.org/SDL/rev/a69e10925a58