Can the Emoji & Symbols panel deliver an event to the active window?

I would like my application to receive an event when the user clicks on an emoji or symbol in the macOS Emoji & Symbols panel and my application window is the key window. I need an event because I am not using an AppKit text component. Is this possible?

For extra credit, is there a way may application can position the panel at a particular location in the window the way TextEdit does?

Where do you receive the character (emoji or other) ? What do you do with it ?

Can the Emoji & Symbols panel deliver an event to the active window?
 
 
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