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Bug 104

Summary: SDL_WarpMouse does not change MouseState
Product: SDL Reporter: Sam Lantinga <slouken>
Component: eventsAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: blocker    
Priority: P2    
Version: don't know   
Hardware: x86   
OS: Linux   
Attachments: main.c

Description Sam Lantinga 2006-01-29 00:31:55 UTC 
Date: Thu, 30 Sep 2004 19:23:12 +0200
From: Ivo Danihelka <i.danihelka@sh.cvut.cz>
Subject: [SDL] bug: SDL_WarpMouse does not change MouseState

First call of SDL_WarpMouse() wraps mouse cursor but does not change
mouse position returned by SDL_GetMouseState(). This happends when mouse
starts outside window. The position remains [0, 0].                 

The second call of SDL_WarpMouse() updates mouse position to right
values.

I attached test program which wraps mouse and 10 times prints mouse
position. Start with mouse out of window and don't move it. Positions
will be [0, 0] instead of [320, 240].

System Information:                  
SDL 1.2.7
XFree86 Version 4.3.99.12
Comment 1 Sam Lantinga 2006-01-29 00:32:14 UTC 
Created attachment 48 [details]
main.c
Comment 2 Sam Lantinga 2006-01-29 00:33:10 UTC 
Date: Fri, 1 Oct 2004 12:49:05 +0200
From: Johannes Schmidt <sdl@myrealbox.com>
Subject: Re: [SDL] bug: SDL_WarpMouse does not change MouseState

If your mouse cursor is not within the SDL frame and you warp the mouse, you
get an enter notify, not a motion notify.
Therefore, SDL does not update its internal mouse state.

What's about calling SDL_PrivateMouseMotion even when getting an EnterNotify?

Regards,
Johannes
Comment 3 Sam Lantinga 2006-05-07 17:15:11 UTC 
I'd like to get this fixed for SDL 1.2.10 release, if possible.
Comment 4 Sam Lantinga 2006-05-09 03:20:38 UTC 
This is fixed in Subversion.