Is the plugin 32 bit or 64 bit?

Hi. I have been going through some of the tutorials to create vst plugins and I tried using one of them in ableton live. I am pretty sure my ableton live is using 64 bit plugins......and it didn't seem to recognize the plugin that I created from the tutorial. So, I am assuming that the tutorial plugin I created might have been 32 bit.  Is there any information on this, or how I might be able to create a 64 bit plugin?  or any information regarding this scenario would be helpful.  Thanks. Denny

You can change this in the introjucer. See screenshots below.