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  • Objective-C Basic class related question, retaining the value of a specific object using a class fil

    - by von steiner
    Members, scholars, code gurus. My background is far from any computer programming thus my question may seems basic and somewhat trivial to you. Nevertheless it seems that I can't put my head around it. I have googled and searched for the answer, just to get myself confused even more. With that, I would kindly ask for a simple explanation suitable for a non technical person such as myself and for other alike arriving to this thread. I have left a comment with the text "Here is the issue" below, referring to my question. // character.h #import <Foundation/Foundation.h> @interface character : NSObject { NSString *name; int hitPoints; int armorClass; } @property (nonatomic,retain) NSString *name; @property int hitPoints,armorClass; -(void)giveCharacterInfo; @end // character.m #import "character.h" @implementation character @synthesize name,hitPoints,armorClass; -(void)giveCharacterInfo{ NSLog(@"name:%@ HP:%i AC:%i",name,hitPoints,armorClass); } @end // ClassAtLastViewController.h #import <UIKit/UIKit.h> @interface ClassAtLastViewController : UIViewController { } -(void)callAgain; @end // ClassAtLastViewController.m #import "ClassAtLastViewController.h" #import "character.h" @implementation ClassAtLastViewController - (void)viewDidLoad { //[super viewDidLoad]; character *player = [[character alloc]init]; player.name = @"Minsc"; player.hitPoints = 140; player.armorClass = 10; [player giveCharacterInfo]; [player release]; // Up until here, All peachy! [self performSelector:@selector(callAgain) withObject:nil afterDelay:2.0]; } -(void)callAgain{ // Here is the issue, I assume that since I init the player again I loss everything // Q1. I loss all the data I set above, where is it than? // Q2. What is the proper way to implement this character *player = [[character alloc]init]; [player giveCharacterInfo]; } Many thanks in advance, Kindly remember that my background is more related to Salmons breeding than to computer code, try and lower your answer to my level if it's all the same to you.

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  • How can I use "FOR UPDATE" with a JOIN on Oracle?

    - by tangens
    The answer to another SO question was to use this SQL query: SELECT o.Id, o.attrib1, o.attrib2 FROM table1 o JOIN ( SELECT DISTINCT Id FROM table1, table2, table3 WHERE ... ) T1 ON o.id = T1.Id Now I wonder how I can use this statement together with the keyword FOR UPDATE. If I simply append it to the query, Oracle will tell me: ORA-02014: cannot select FOR UPDATE from view Do I have to modify the query or is there a trick to do this with Oracle? With MySql the statement works fine.

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  • iPhone and OpenCV

    - by Pascal T.
    I know that OpenCV was ported to Mac OS X, however I did not find any info about a port to the iPhone. I am not a Mac developer, so that I do not know whether a Mac OS X port is enough for the iPhone. Does anyone know better than me? Edit: Thanks for the informed answer Adam.

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  • Programatically Determine Exchange Attachment Limit

    - by Jeff Ballard
    Is there any way to query the exchange server to determine the maximum attachment file size? I'd be doing this in ASP.NET/C#. I'd like to be able to validate the file they want to attach is not over the limit before the user attempts to send the file to the server as opposed to having the server send back an exception when it attempts to attach the file and it discovers the file is too large. I've also posted this question about this on stackoverflow.com as well - I figured a sysadmin for Exchange may have an answer as well as a developer. Hopefully I do not incur the wrath of the stackexchange gods.

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  • How do I create a ListBox In Ext-GWT ?

    - by Salvin Francis
    Plain and Simple, I want to use a Listbox in my project, The demo here: http://www.extjs.com/examples shows no answer, In fact, I really hate it when companies show-off their 'complex' widgets in this manner and fail to show the most basic of all widgets. For example, I discovered class SimpleComboBox over the net till then I assumed that we required a class to contain list store, etc...

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  • Windows: Is there something to see and remotely control single(!) windows on a remote PC?

    - by Horst Walter
    Is there something where I can see and control single(!) windows of PC1 on PC2 remotely. Basically like it is possible with X-Windows. I am not talking / asking about A software which displays the whole desktop remotely (like VNC, Windows RDP). A X-windows server for windows, to connect to Linux. The answer here ( Windows Remote Desktop Connection for just a single window (or a single program) ) requires Windows Server 2008. I need to run this on two Windows 7 machines. Example: PC1 shows three windows, and I transfer, see, and control window 2 on PC2. -- Edit -- I have checked whether there is an X-Server for Windows <- Windows. But there seems not to be one other than Unix <- Windows: http://stackoverflow.com/questions/40453/what-is-a-good-and-free-x-server-for-windows

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  • Pass arguments when using the File protocol

    - by Ando
    I found this question being asked on several places on the internet (including the File protocol MSDN page) but no clear answer. So, if I am calling my application like this: file://c:\myapp.exe is there any way to pass it some command line arguments, like /nospashscreen=true Things I've tried: file://c:\myapp.exe?/nospashscreen=true - launches the app, but with no command line arguments :( Thanks in advance.

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  • Fixing VB6 inaccurate mathmetical results due to rounding

    - by jay
    Try running this in a .VBS file MsgBox(545.14-544.94) You get a neat little answer of 0.199999999999932! This rounding issue also occurs unfortunately in Sin(2 * pi) since VB can only ever see the (user defined) variable pi as accurate as 3.14159265358979. Is rounding it manually (and loosing accuracy) the only way to improve the result? What is the most effective way of dealing with this kind of problem?

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  • Whats the difference in GET and POST encryption?

    - by Dju
    What is the difference when encrypting GET and POST data? Thx for answer Edit: i need to write it more specific. When https-SSL encrypts both of this methods, what is the difference in way browser does this. Which parts are encrypted and which are not? I somewhere read, that the destination url is not encrypted in POST, is that true? If it is true and same in GET, where are all the parameters?

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  • Resize PNG image

    - by serhiyiv
    HI! Could you please tell me how to resize a .png image. Or better give an example. I've been searching for the answer for a long time and it seems that nobody knows how to resize a .png image and keep its transparency. :(

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  • Escape SQL "LIKE" value for Postgres with psycopg2

    - by Evgeny
    Does psycopg2 have a function for escaping the value of a LIKE operand for Postgres? For example I may want to match strings that start with the string "20% of all", so I want to write something like this: sql = '... WHERE ... LIKE %(myvalue)s' cursor.fetchall(sql, { 'myvalue': escape_sql_like('20% of all') + '%' } Is there an existing escape_sql_like function that I could plug in here? (Similar question to How to quote a string value explicitly (Python DB API/Psycopg2), but I couldn't find an answer there.)

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  • Executing Shell Scripts from the OS X Dock?

    - by Wilco
    I'm sure the answer is ridiculously obvious, but so far Google hasn't been very helpful. How do I set up a shell script to execute from the dock? It seems that simply creating a shortcut will open the file in my editor. Is there a flag I need to set somewhere to tell it to run instead of opening it for editing?

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  • Do I Own the Source Code? [closed]

    - by Tim Long
    If I pay someone to write some software for me and our contract doesn't specify, do I own the rights to the source code, or does the company who wrote the software? Who does the intellectual property belong to in this situation? I'm specifically interested in the answer as it applies in the United Kingdom.

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  • Change a select list display value upon selecting description

    - by eli
    Hello, I would like a select list that does the following: When the select list is open, display the list of descriptions. When the user selects an item, the select list will close an only the value will be displayed. The reason for this is to conserve space as the values will be much shorter. I'm hoping that there's an answer in jQuery. Thanks.

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  • Save the zoomed image on Picturebox control using C#

    - by Vinay G
    Hi I had posted this question before but i did not get the answer Proper(i think people did not get my question ) so i am posting it now. I capture a image from windows mobile camera and save it on picturebox control..now to zoom the picture i am increasing its size by Onpaint event.The image is getting zoomed but i am not able to save the zoomed image(ie.., the increased image size)... Please let me know Thanks In Advance

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  • how to use summation in matlab???

    - by lucky
    i have a randomly generated vector say A of length M say A=rand(M,1) and also i have function X(k)=sin(2*pi*k) how would i find Y(k) which is summation of A(l)*X(k-l) as l goes from 0 to M ... assume any value of k... but answer should be summation of all M+1 terms

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  • What kind of cost does Symbian require?

    - by httpinterpret
    Quoted from this answer: Cost of tools: JavaME would be cheapest, followed by Symbian, Android then iPhone. I want to get started with mobile phone programing,but I don't see where Symbian does cost, as its SDK is available for free. Anyone knows? BTW,many people say Symbian only supports Symbian C++, but after reading its document, it seems it also support Java, is this feature newly added?

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  • Flex Drag and Drop

    - by James_Dude
    Hi I am trying to do a flex drag and drop. It is very similar to this first example. http://livedocs.adobe.com/flex/3/html/help.html?content=dragdrop_7.html The problem is that event.currentTarget.mouseX,mouseY is showing the position where I put the mouse down rather than the position where I had finished dragging. I am just wondering why this could be? If there is a short answer?

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