Help with checking words

[John]

I want to limit the number of characters that can be typed by the user into an edit box.

This is what I have.

Code:

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sel wParam
,case EN_CHANGE<<16|4
,pw.getwintext(id(4 hDlg))
,if len(pw)>16

I can tell if there are more than 16 characters but not sure how to stop the input at 16.