Q:
In Mac OS X 10.1.x, my Cocoa app crashes if I have more than
one disabled but editable NSComboBox in a view and I click
on one of them. How can I prevent this?
A:
This is a bug that should be fixed in the next major release
of Mac OS X. The workaround is fairly straightforward -
use a subclass of NSComboBox that overrides -acceptsFirstResponder
like Listing 1 demonstrates.
@implementation MyComboBox
- (BOOL) acceptsFirstResponder {
if ([self isEnabled] || NSAppKitVersionNumber>=636)
return [super acceptsFirstResponder];
else
return NO;
}
@end
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Listing 1. fixing the NSComboBox bug
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[Jun 03 2002]
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