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  • Pass Variables In Inheritance (Obj - C)

    - by Marmik Shah
    I working on a project in Obj-C where i have a base class (ViewController) and a Derived Class (MultiPlayer). Now i have declared certain variables and properties in the base class. My properties are getting accessed from the derived class but im not able to access the variables (int,char and bool type). I'm completely new to Obj-C so i have no clue whats wrong. I have used the data types which are used in C and C++. Is there some specific way to declare variables in Obj-C?? If so, How? Here are my files ViewController.h #import <UIKit/UIKit.h> @interface ViewController : UIViewController @property (weak,nonatomic) IBOutlet UIImageView* backGroungImage; @property (strong,nonatomic) IBOutlet UIImageView *blockView1; @property (strong,nonatomic) IBOutlet UIImageView *blockView2; @property (strong,nonatomic) IBOutlet UIImageView *blockView3; @property (strong,nonatomic) IBOutlet UIImageView *blockView4; @property (strong,nonatomic) IBOutlet UIImageView *blockView5; @property (strong,nonatomic) IBOutlet UIImageView *blockView6; @property (strong,nonatomic) IBOutlet UIImageView *blockView7; @property (strong,nonatomic) IBOutlet UIImageView *blockView8; @property (strong,nonatomic) IBOutlet UIImageView *blockView9; @property (strong,nonatomic) UIImage *x; @property (strong,nonatomic) UIImage *O; @property (strong,nonatomic) IBOutlet UIImageView* back1; @property (strong,nonatomic) IBOutlet UIImageView* back2; @end ViewController.m #import "ViewController.h" @interface ViewController () @end @implementation ViewController int chooseTheBackground = 0; int movesToDecideXorO = 0; int winningArrayX[3]; int winningArrayO[3]; int blocksTotal[9] = {8,3,4,1,5,9,6,7,2}; int checkIfContentInBlocks[9] = {0,0,0,0,0,0,0,0,0}; char determineContentInBlocks[9] = {' ',' ',' ',' ',' ',' ',' ',' ',' '}; bool player1Win = false; bool player2Win = false; bool playerWin = false; bool computerWin = false; - (void)viewDidLoad { [super viewDidLoad]; if(chooseTheBackground==0) { UIImage* backImage = [UIImage imageNamed:@"MainBack1.png"]; _backGroungImage.image=backImage; } if(chooseTheBackground==1) { UIImage* backImage = [UIImage imageNamed:@"MainBack2.png"]; _backGroungImage.image=backImage; } } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end I am not able to use the above declared variables in my derived classes!

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  • Confirm function in codebehind

    - by Geetha
    Hi All, I am using the following code to show confirmation dialog box after finishing some update process in database. but it is not working for me. code: protected void imbtnUpdate_Click(object sender, ImageClickEventArgs e) { // Database process string javaScript = "<script language=JavaScript>\n " + "if(confirm('Do you want to update the files?'))window.location.href = \"Upload.aspx?ID=" + ID + "&pt=Gm&page=Gms\"; else return false;\n" + "</script>"; RegisterStartupScript("imbtnUpdate_Click", javaScript); }

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  • unable to pas derived List<>

    - by Tarscher
    Hi all, I have class A {} class B : A {} I also have a method that expects a List parameter void AMethod(List<A> parameter) {} Why can't I List<B> bs = new List<B>(); AMethod(bs); And secondly what is the most elegant way to make this work? regards

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  • scrollable banner using buttons and mouse scroller

    - by Psinyee
    I'm creating a scrollable banner for my homepage with 'up' and 'down' button for user to scroll the banner. How do I make it so that the mouse scroller is able to scroll the banner too and also once I click on the down or up button the user will be able to see the transition of the banner scrolling upwards or downwards? scroll script: <script> var t = 0; function up() { t += 600; with(document.getElementById("contents")) { if (t > 0) t = 0; if(style) style.top = t + "px"; else setAttribute("style", "top: " + t + "px"); } } function down() { t -= 600; with(document.getElementById("contents")) { if(t < -clientHeight) t = -clientHeight; if(style) style.top = t + "px"; else setAttribute("style", "top: " + t + "px"); } } </script> scrollable banner: <table width="950px" height="600px"> <tr> <td valign="top"> <div id="scrollable" style="height:600px; width:950px"> <div id="contents" style="height:600px; width:950px"> <table bgcolor="#dcdcdc" width="950px" height="600px"> <tr> <td height="490px"></td> </tr> <tr> <td height="100px"><img src="images/banner_title.png"/></td> </tr> </table> <table bgcolor="#ffd07e" width="950px" height="600px"> <tr> <td height="490px"></td> </tr> <tr> <td height="100px"><img src="images/banner_title.png"/></td> </tr> </table> buttons: <table> <tr> <td width="30px"><a href="javascript:void(0)" onClick="up()"><img src="images/arrow_up.png"/></a></td> <td width="30px"><a href="javascript:void(0)" onClick="down()"><img src="images/arrow_down.png"/></a></td> </tr> </table>

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  • Delegates with explicit "this" pointer?

    - by Qwertie
    Is it possible to adapt a method like this function "F" class C { public void F(int i); } to a delegate like Action<C,int>? I have this vague recollection that Microsoft was working on supporting this kind of adaptation. But maybe I misremembered!

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  • Can C# Attributes access the Target Class?

    - by Heka
    I want to access the properties of a class from the attribute class by using reflection. Is it possible? For example: class MyAttribute : Attribute { private void AccessTargetClass() { // Do some operations } } [MyAttribute] class TargetClass { }

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  • C++, class as parameter to a method, not template.

    - by ra170
    So, I came across an interesting method signature that I don't quite understand, it went along the lines of: void Initialize(std::vector< std::string > & param1, class SomeClassName * p); what I don't understand is the "class" keyword being used as the parameter, why is it there? Is it necessary to specify or it is purely superficial?

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  • How to send file to remote computer?

    - by Phsika
    i can get file name via below codes. How can i send this file to remote computer. this remote computer ip: 192.168.2.105 also i can use 51124 port class Program { static void Main(string[] args) { string[] dosyalarinYollari = System.IO.Directory.GetFiles(@"z:\20071008\1.2.392.200036.9116.2.6.1.48.1215563310.1191800303.305777\", "*.dcm", System.IO.SearchOption.AllDirectories); foreach (string s in dosyalarinYollari) { Console.Write(s+"\n"); // i need to send tihs s file to remote machine } Console.ReadKey(); } }

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  • WPF, databinding

    - by fsl
    Hi there In a given binding is it possible to specify the path on the source object? Seems like this could a void a lot of trivial converters.. Imagine this..: class foo { bool A int B } <ComboBox ItemsSource="ListOfFoos" SelectedItem="{Binding number, SourcePath=B}" />

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  • How to pass a property to an event with a Button

    - by Tam
    I'm generating buttons dynamically that I want it to call a method like this: private function fetchTheDay(day:String):void { ... } But I wasn't sure how to make the button pass the string to it button.addEventListener(MouseEvent.CLICK,fetchTheDay); buttonVGroup.addElement(button); trying to do something like this didn't work: button.addEventListener(MouseEvent.CLICK,fetchTheDay(myString)); How should I do this?

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  • i can't get variable in function.

    - by kaym
    i can't read the variable in the function, i want to use it outside the function, here is my code. var contentLoader:URLLoader = new URLLoader(); contentLoader.load(new URLRequest("http://localhost/data.php")); function onComplete(event:Event):void { var txtu:String = event.target.data; } contentLoader.addEventListener(Event.COMPLETE, onComplete); trace(txtu); thanks.

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  • Resolve instance - Autofac

    - by user137348
    I'm trying to figure out how to resolve a instance somewhere in the code. At the application startup I registered a type static void Main() { var builder = new ContainerBuilder(); builder.RegisterType<Foo>().As<IFoo>(); } Now, how can I resolve an instance somewhere in the code ? In structure mam there is a static object ObjectFactory.GetInstance<IFoo>()

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  • Weird seg fault problem

    - by bluedaemon
    Greetings, I'm having a weird seg fault problem. My application dumps a core file at runtime. After digging into it I found it died in this block: #include <lib1/c.h> ... x::c obj; obj.func1(); I defined class c in a library lib1: namespace x { struct c { c(); ~c(); void fun1(); vector<char *> _data; }; } x::c::c() { } x::c::~c() { for ( int i = 0; i < _data.size(); ++i ) delete _data[i]; } I could not figure it out for some time till I ran nm on the lib1.so file: there are more function definitions than I defined: x::c::c() x::c::c() x::c::~c() x::c::~c() x::c::func1() x::c::func2() After searching in code base I found someone else defined a class with same name in same namespace, but in another library lib2 as follows: namespace x { struct c { c(); ~c(); void func2(); vector<string> strs_; }; } x::c::c() { } x::c::~c() { } My application links to lib2, which has dependency on lib1. This interesting behavior brings several questions: Why would it even work? I would expect a "multiple definitions" error while linking against lib2 (which depends upon lib1) but never had such. The application seems to be doing what's defined in func1 except it dumps a core at runtime. After attaching debugger, I found my application calls the ctor of class c in lib2, then calls func1 (defined in lib1). When going out of scope it calls dtor of class c in lib2, where the seg fault occurs. Can anybody teach me how this could even occur? How can I prevent such problems from happening again? Is there any C++ syntax I can use? Forgot to mention I'm using g++ 4.1 on RHEL4, thank you very much!

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  • Transparent textbox when textbox GotFocussed Windows Phone 8.1?

    - by user3701923
    I need to have transparent textbox, in my WindowsPhone 8.1 Runtime application. I made Background="Transparent" to the textbox, so it is transparent when it is loaded. But on focus, background color changed to white. I write the following code, to make it transparent. But it doesn't run.! <TextBox Background="Transparent" GotFocus="titleBox_GotFocus" /> C# private void titleBox_GotFocus(object sender, RoutedEventArgs e) { titleBox.Background = new SolidColorBrush(Colors.Transparent); }

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  • Linking a Text Box to a variable?

    - by cam
    I would like to have direct access to the text inside a textbox on another form, so I added a public variable _txt to a form and added an event like so: private void richTextBox1_TextChanged(object sender, EventArgs e) { _txt = richTextBox1.Text; } But the form is loaded like this: public FrmTextChild(string text) { InitializeComponent(); _txt = text; richTextBox1.Text = _txt; Text = "Untitled.txt"; } Is there a better way to directly link the two?

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  • How to change the way that timer schedules in TimerTask?

    - by Judking
    Here is the code snippet: Timer t = new Timer(); TimerTask task = new TimerTask() { @Override public void run() { //change the timer rate of scheduleAtFixedRate here } }; //every 10 sec t.scheduleAtFixedRate(task, new Date(), 10000); Could anyone tell me how to change the rate of timer to t.scheduleAtFixedRate(task, new Date(), 30000) in method run from TimerTask instance? Thanks a lot!

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  • How do get the view that is the tapped detail-disclosure-button.

    - by Roberta
    The cell in this iPhone TableView definitely has a Detail-Disclosure-Button. When I tap it... shouldn't this code give me access to the button? Instead detailButton is always just null. - (void) tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath { UITableViewCell *aCell = [tableView cellForRowAtIndexPath:indexPath]; UIButton *detailButton = (UIButton *)[aCell accessoryView]; }

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  • Image from WebView

    - by kostas_menu
    hi!i m getting a photo from the web,but i see it very large..how could i see it with zoom out?this is my code for webView: public class gavros extends Activity { WebView browser; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.efimerides); browser =(WebView)findViewById(R.id.webview); browser.loadUrl("http://resources.sport-fm.gr/sportfm/newspapers/10/12/24/gavros.jpg"); }}

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  • How to use enumeration types in C++? Apply within example.

    - by Sagistic
    I do not understand how to use enumeration types. I understand what they are, but I don't quite get their purpose. I have made a program that inputs three sides of a triangle and outputs whether or not they are isosceles, scalene, or equilateral. I'm suppose to incorporate the enumeration type somewhere, but don't get where and how to use them. Any help would be appreciated. // h8p466x1.cpp : Defines the entry point for the console application. // include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { return 0; } include using namespace std; enum triangleType {scalene, isosceles, equilateral, noTriangle}; void triangleShape(double x, double y, double z); int main() { double x, y, z; cout << "Please enter the three sides of a triangle:" << endl; cout << "Enter side 1: "; cin >> x; cout << endl; cout << "Enter side 2: "; cin >> y; cout << endl; cout << "Enter side 3: "; cin >> z; cout << endl; triangleShape(x, y, z); return 0; } void triangleShape(double x, double y, double z) { if (((x+y) z) && ((x+z) y) && ((y+z) x)) { cout << "You have a triangle!" << endl; if (x == y && y == z) cout << "Your triangle is an equilateral" << endl; else if (x == y || x == z || y == z) cout << "Your triangle is an isosceles" << endl; else cout << "Your triangle is a scalene" << endl; } else if ((x+y) <= z || ((x+z) <= y) || ((y+z) <= x)) cout << "You do not have a triangle." << endl; }

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  • How to use enumeration types in C++?

    - by Sagistic
    I do not understand how to use enumeration types. I understand what they are, but I don't quite get their purpose. I have made a program that inputs three sides of a triangle and outputs whether or not they are isosceles, scalene, or equilateral. I'm suppose to incorporate the enumeration type somewhere, but don't get where and how to use them. Any help would be appreciated. #include <iostream> using namespace std; enum triangleType {scalene, isosceles, equilateral, noTriangle}; void triangleShape(double x, double y, double z); int main() { double x, y, z; cout << "Please enter the three sides of a triangle:" << endl; cout << "Enter side 1: "; cin >> x; cout << endl; cout << "Enter side 2: "; cin >> y; cout << endl; cout << "Enter side 3: "; cin >> z; cout << endl; triangleShape(x, y, z); return 0; } void triangleShape(double x, double y, double z) { if (((x+y) > z) && ((x+z) > y) && ((y+z) > x)) { cout << "You have a triangle!" << endl; if (x == y && y == z) cout << "Your triangle is an equilateral" << endl; else if (x == y || x == z || y == z) cout << "Your triangle is an isosceles" << endl; else cout << "Your triangle is a scalene" << endl; } else if ((x+y) <= z || ((x+z) <= y) || ((y+z) <= x)) cout << "You do not have a triangle." << endl; }

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  • pls give reason why this java program always comes to the else part

    - by Anbu
    public class Test { public static void main(String[] args){ if (5.0 5) // (5.0<5) for both case it is going to else System.out.println("5.0 is greater than 5"); else System.out.println("else part always comes here"); /another sample/ if (5.0 == 5) System.out.println("equals"); else System.out.println("not equal"); } } can any one explain the first "if statement" why it always come to else part

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  • How can I define a method with multiple optional arguments in Obj-C

    - by The Dark Bug Returns
    I want to be able to update two sets of identical buttons with one function. Also I don't want to update all the buttons, only some of them. Can I have a function like this?: -(void) updateFields{ updateButton1 : (Bool) x updateButton2 : (Bool) y updateButton3 : (Bool) z } The implementation will look like this: [button1_1 setEnabled:x]; [button1_2 setEnabled:x]; //called only if updateButton1 is given an argument [button2_1 setEnabled:y]; etc...

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