Getting project tempo?

Developer VST 3 SDK
1

I don’t know if I’m missing something, or if there is other documentation somewhere that I missed, but I can barely find any information about something that seems like it would be so basic…

I’m working on a VST, and almost the only thing I need it to do, is get whatever the current project tempo is - just like any delay plugin that has a tempo sync button.

I thought it would just be like, x = currentproject.tempo or something super basic but apparently it’s not, and I can’t find any seemingly relevant documentation. There’s a couple of guys on youtube about it but they didn’t prove to be too helpful to me - which could be and probably is my own fault.

Can someone point me in the right direction of where to look? Is there even a universal way to code a tempo detection so that you can just open the VST in any DAW and receive the current project tempo?

2

Never used it myself but it looks like the SyncDelay example plugin extract the tempo in the process function.

tresult PLUGIN_API SyncDelayProcessor::process (ProcessData& data)

	if (data.processContext && data.processContext->state & ProcessContext::kTempoValid)
	{
		if (data.processContext->tempo != mTempo)
		{
			mTempo = data.processContext->tempo;
		}
	}
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