processing - How to display emoji's in a sketch? -

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i have following method in draw() method:

pfont f = createfont("arial",size,true); textfont(f,size);  text(char(symbol), x, y);

where symbol integer unicode range of emojis's 128512-128591.

but output displays empty blocks instead of emoji.

what correct way this? , how can display rich emoji's liek found in mobile apps etc.?


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