how to get characters with accent from NSEvent

问题

When I press ^ or ` and then a or e I get only a or e instead of â or é.

This is my code:

- (void) keyDown:(NSEvent*)event
{
  NSString* str = [event characters];
}

How do I solve this?

回答1:

keyDown: only gives the characters for the key you currently are pressing down. Characters that take more than one keystroke show up as a separate keyDown: call for each keystroke. If you want to see typed characters instead of individual keypresses, override -insertText: instead.

来源：https://stackoverflow.com/questions/7100131/how-to-get-characters-with-accent-from-nsevent