Re: something I can't understand
Re: something I can't understand
- Subject: Re: something I can't understand
- From: Dragos Ionel <email@hidden>
- Date: Wed, 29 Jul 2009 14:56:06 -0400
Actually it was my mistake as pointed by Glenn and Wagner.
My apologies to have misled.
Dragos
iphodea.com
On Wed, Jul 29, 2009 at 2:40 PM, Agha Khan <email@hidden> wrote:
> Hi Dragos lonal:I didn't mention they have readonly attributes. How can we
> remove readonly attribute?
>
> Thanks for reply.
>
> Agha
> On Jul 29, 2009, at 6:35 AM, Dragos Ionel wrote:
>
> verticalLoc and x are readonly values, you cannot assign them.
>
> use the frame property, first to retrieve it, change the x value and then
> to reassign to the button.
>
> something like
>
> CGFrame frame = pPngButton.frame;
> frame.x = ...;
> pPngButton.frame = frame;
>
> Dragos
>
>
> On Wed, Jul 29, 2009 at 3:24 AM, Agha Khan <email@hidden> wrote:
>
>> Hi:
>> Thank you for your reply.
>> Oh yes. It an Objective-C class.
>>
>> regardless I place (bVerticalDisplay == YES) or not. The function silently
>> fails, with no warnings.
>> The I decided to
>> pPngButton.verticalLoc.x = (bVerticalDisplay == YES) ? 250 : 410;
>> This time I got warning.
>>
>> error: lvalue required as left operand of assignment
>>
>> Many thanks
>>
>> -Agha
>>
>>
>>
>>
>> On Jul 28, 2009, at 7:59 PM, Kiel Gillard wrote:
>>
>> On 29/07/2009, at 12:52 PM, Agha Khan wrote:
>>>
>>> Hi:
>>>> I have a struct
>>>> @interface PngButton : UIButton
>>>> {
>>>> @public
>>>> bool OffPos;
>>>> CGPoint horizontalLoc;
>>>> CGPoint verticalLoc;
>>>> }
>>>> @property (assign) bool OffPos;
>>>> @property (assign) CGPoint horizontalLoc;
>>>> @property (assign) CGPoint verticalLoc;
>>>> @end
>>>>
>>>
>>> No, you have an Objective-C class.
>>>
>>> PngButton* pPngButton = [PngButton
>>>> buttonWithType:UIButtonTypeInfoDark];
>>>> [pPngButton setFrame:CGRectMake(screenRect.size.width - 70.0, 50.0, 36,
>>>> 36)]; // No problem
>>>>
>>>> pPngButton.verticalLoc = CGPointMake((bVerticalDisplay == YES) ? 250 :
>>>> 410, 50.0);
>>>>
>>>> I get an error
>>>> error: lvalue required as left operand of assignment
>>>>
>>>> Why it is not working? I shouldn't get this error.
>>>> Any help will be very much appreciated.
>>>>
>>>
>>> Do you get any warnings?
>>>
>>> Try this and see what happens:
>>> pPngButton.verticalLoc = CGPointMake((bVerticalDisplay == YES ? 250.0 :
>>> 410.0), 50.0);
>>>
>>> Kiel
>>>
>>>
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