macOS How set text length limit in NSTextField and NSSecureTextField ?

[newformac]

I want to set text length limit for NSTextField and NSSecureTextField .

i want only 5 digit can enter or paste in these field ,please help me how can i do this?

thanks.

 

[ritsard]

Look at the delegates associated with that NSTextField. If you can detect each keystroke, what do you think you can do?

 

[newformac]

can u please explain me more for this?
what delegate use for this?

thanks.

 

[ritsard]

check this one out:

– textDidChange: