[Lua] Scan controller buttons from Lua on startup / auto

[Matthew Twomey]

Looking for the easiest way to get the button state from a controller in a lua script that I'm running as "Auto" when FSUIPC starts up. My code is working, but things don't fall into place until I put some input on the controller I'm mapping. As soon as I provide any input - everything starts acting as expected.

I tried using the initreport from com.openhid, but I may not be doing this right. Here's what I'm at with this:

handle, rd, rdf, wr, initreport = com.openhid(0x04D8, 0x8A3D);

for i = 0, 3, 1 do
    local state = com.testhidbutton(handle, i, initreport);
    if (state) then
        ipc.log(i .. ": on");
    else
        ipc.log(i .. ": off");
    end
end

Regardless of the actual button state (actual physical switches in my case), all buttons come back as false, until I trigger any button - at which point they all immediately start reporting correctly. Is there a way to force it to "scan" the controller, or maybe I'm just doing it wrong?

[Matthew Twomey]

Ok - this seems to take care of it:

handle, rd, rdf, wr, initreport = com.openhid(0x04D8, 0x8A3D);
initreport = com.readreport(handle, 0);

for i = 0, 3, 1 do
    local state = com.testhidbutton(handle, i, initreport);
    if (state) then
        ipc.log(i .. ": on");
    else
        ipc.log(i .. ": off");
    end
end
ipc.log("val1: " .. com.gethidbuttons(handle, initreport));

I'm not sure if that com.readreport is the right approach, but it's working. If anyone has a thought on this, please share.