I was wondering also about the necessity of:
[self setNeedsDisplay:YES];
It seems to work fine without it (perhaps it's already being done by the
superclass, NSTextField?).
-Carl
> On Aug 1, 2020, at 5:28 AM, Graham Cox <[email protected]> wrote:
>
> You shouldn’t call -becomeFirstResponder yourself.
>
> Instead, call [self.window makeFirstResponder:self].
>
> That should properly switch the first responder, giving the previous
> responder the chance to refuse. Of course, that’s more obstructive if the
> previous responder DOES refuse, but that’s what they tell you to do (from the
> documentation on [NSReponder becomeFirstResponder]:
>
>> Use the NSWindow makeFirstResponder:
>> <apple-reference-documentation://hctShXn_ws> method, not this method, to
>> make an object the first responder. Never invoke this method directly.
>
>
> —Graham
>
>
>
>> On 1 Aug 2020, at 10:16 am, Sandor Szatmari via Cocoa-dev
>> <[email protected] <mailto:[email protected]>> wrote:
>>
>> I call…
>>
>> [self becomeFirstResponder]
>> [self setNeedsDisplay:YES]
>>
>> Then return the drag operation required.
>>
>
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