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Use SpatialInteractionManager to detect spatial interaction in HoloLens DirectX template
Yixun
✭✭
Hi
I have a question about using SpatialInteractionManager to detect spatial interaction.
The following codes come from HoloLens DirectX template.
Method OnSourcePressed() is used to to indicate that a Pressed input event was received and method CheckForInput() is used by the main thread to check asynchronous changes to the user input state.
I think these two methods are running in two different threads, but why there is no any synchronization between the access of variable m_sourceState?
Thanks.
YL
// Checks if the user performed an input gesture since the last call to this method.
// Allows the main update loop to check for asynchronous changes to the user
// input state.
SpatialInteractionSourceState^ SpatialInputHandler::CheckForInput()
{
SpatialInteractionSourceState^ sourceState = m_sourceState;
m_sourceState = nullptr;
return sourceState;
}
void SpatialInputHandler::OnSourcePressed(SpatialInteractionManager^ sender, SpatialInteractionSourceEventArgs^ args)
{
m_sourceState = args->State;
// // TODO: In your app or game engine, rewrite this method to queue // input events in your input class or event handler. //
}