On 06/12/2009, at 1:08 PM, Chunk 1978 wrote:
> for factoring purposes i want to be able to call the same
> method from touchesEnded that will clear the output strings if there
> is no point, but CGPointZero is a point.
Can't you just define an 'impossible' point value to act as a sentinel?
So
The usual solution is to change the method signature to accept a
CGPoint* argument instead, so you can also pass NULL / nil separately
from any point.
Best regards,
Frederik Slijkerman
Chunk 1978 wrote:
i have an method that takes a CGPoint as an argument. i would like to
call the method wi
the method that takes the CGPoint argument is called from touchesBegan
and touchesMoved. the CGPoint method outputs touch coordinates and
the touches only register if the touch is within the frame of the
image. for factoring purposes i want to be able to call the same
method from touchesEnded tha
Anything you pass can be interpreted as a point. You could pass an NSString,
but those are still pointers, and you can interpret a pointer as a regular
number. You could pass a character, but characters are also numbers. In fact,
everything in C can be interpreted as a number (this is often v
On 06/12/2009, at 12:59 PM, Chunk 1978 wrote:
> i have an method that takes a CGPoint as an argument. i would like to
> call the method without supplying a CGPoint, but i can't pass nil or
> null. i can pass CGPointZero, but that is still a point: {0, 0}
Why would you want to do this? It just
i have an method that takes a CGPoint as an argument. i would like to
call the method without supplying a CGPoint, but i can't pass nil or
null. i can pass CGPointZero, but that is still a point: {0, 0}
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