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Bug 5154

Summary: SDL_MOUSEMOTIONEVENT: non-zero xrel/yrel with immobile mouse
Product: SDL Reporter: ga.taillon
Component: eventsAssignee: Sam Lantinga <slouken>
Status: NEW --- QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: 2.0.12   
Hardware: x86   
OS: Windows 10   

Description ga.taillon 2020-05-23 08:31:07 UTC 
With immobile mouse, the SDL_MOUSEMOTION event's xrel/yrel values are sometimes nonzero, even though the mouse is immobile. This can be verified by checking the event's x/y values, which do not change while the xrel/yrel values are nonzero.