Mouse inputs are disabled after alt+tab

[fcturan20]

Hi, I implemented a camera system for our renderer but there is an issue. If user uses alt+tab while right-clicking, application stops getting inputs. Here's the implementation: Osman-Fatih-Cakir/DX12Renderer@7fc52a2 . How can we fix this?

[alaingalvan]

OK, this is a weird one!

I was able to reproduce it on my end in Win32 with DirectX 12 with ImGui.

EDIT: So it turned out that IO state was just stuck after alt-tabbing while right clicking, so one way to mitigate this is to clear your IO state, with ImGui this would be:

if (e.type == xwin::EventType::Focus)
{
    xwin::FocusData fd = e.data.focus;
    if (!fd.focused)
    {
        // Clear IO
        io.ClearInputKeys();
    }
}

Try clearing your IO state when losing focus in your application, so that would be your isRightClicked variable in AppWindow.cpp.

[fcturan20]

It didn't work out for me. The problem seems to be event queue isn't clearing its elements. Event queue element count keeps increasing even though i clear them using pop().