Force all capitals in NSTextField (Cocoa)

capitalization, cocoa, nstextfield

Solution

You could give the NSTextField a delegate with something along the lines of:

- (void)controlTextDidChange:(NSNotification *)aNotification{
    NSText *fieldEditor = [[aNotification userInfo] objectForKey:@"NSFieldEditor"];
    [fieldEditor setString:[[fieldEditor string] uppercaseString]];
}

It should catch text changing notifications and uppercase the text.

Problem

Is there a way to force capitals in a NSTextField? I want to create a text field for typing in Post Codes, and I want all post codes entered to use capital letters. e.g. N1 3ET instead of: n1 3et Also, I am using a regular expression, which only accepts capitals (I know very little about regular expressions, so I'm not keen on modifying it) Thank you! Michael

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