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VC++ What can cause mouse cursor and every other action slow, laggy or freezing when a exception occur or breakpoint is hit.


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Hello guys. How is going ?

Can anyone help me with this ? I'm searching for a reason for this to happen.
My application uses DirectInput, it uses GUID_MouseSys. Sometimes when the app crashes it go back to visual studio but the cursor is VERY laggy as all action with keyboard too.
Alt + TAB delays at least 2 to 3 seconds...

Anyone knows why this happen ? Or at least can help to try to investigate the problem ?

---- Edit

Strangely if start debugging session and keeps maintaining focus on VStudio everything stays normal. 
I think it's related to windows focus. But I can't really say it..

Any tips ?

Edited by opc0d3
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