[ad_1] Using feof() is a bad idea as it can return zero, and then the next line of input can encounter end of the file – which can give unexpected errors Also fgets() returns NULL if an error occurs, including encountering end of file. Imagine your loop has been going along happily, and has just … Read more
[ad_1] Declare the QTimer as a member in you class h file: class Ball: public QObject, public QGraphicsRectItem{ { Q_OBJECT public: // constructor Ball(QGraphicsItem* parent=Q_NULLPTR); // control your timer void start(); void stop(); … private: QTimer * m_poTimer; } Initiate the timer object in your constractor cpp file: Ball::Ball(QGraphicsItem* parent) : QGraphicsItem(parent) { m_poTimer = … Read more
[ad_1] The biggest example would be #include<stdio.h> But there are a fair amount. You can also define macros: #define MAX(X,Y) (((X) > (Y)) ? (X) : (Y)) And use header guards #ifndef A_H #define A_H // code #endif There are proprietary extensions that compilers define to let you give processing directives: #ifdef WIN32 // WIN32 … Read more
[ad_1] I am not sure what exactly you are stuck on based on your question so I made a minimal C program with comments I declared an int array who’s first and second dimension are at least 10 because you iterate both i and j from 0 to 9 (inclusive). This is to avoid out … Read more
[ad_1] Your variables are float, but the method Math.Pow returns a double. Hence you need explicit conversion to be performed on the result of the method. presentValue = futureValue / (float)Math.Pow(1 + rate, years); Note: Math.Pow also takes double as parameters, but still it works. That’s because implicit conversion is taking place. Because double can … Read more
[ad_1] What the code does is fetch one character from the input stream at a time, and then store the character at the ith position in the s array, then it increments i. It tests for two conditions, if i == lim – 1 then the loop ends, and the ‘\0’ is appended at the … Read more
[ad_1] The biggest value an int can hold is 2,147,483,647. Change the variables to unsigned long long, which can hold a maximum of over 18,446,744,000,000,000,000. (You’ll need to use %llu to read in/out unsigned long long variables) Also, always validate inputs, this would have hinted at the issue. if(scanf(“%d”, &a) < 1) { //if we … Read more
[ad_1] You are never initializing the bask in GameManager.cs. public class GameManager : MonoBehaviour { Basket bask; public Text text_apple; // Use this for initialization void Start () { bask = GameObject.Find(“BaskNameInHierarchy”).GetComponent<Basket>() text_apple.text = bask.displayApple; //i want to call the method of displayApple to get the string returned. } } You can also make the … Read more
[ad_1] In my controller I do the following now. var startDateTZ = _startDate.Substring(20, 4); if (startDateTZ[3] == ‘ ‘) { startDateTZ = _startDate.Substring(20, 3); } if (startDateTZ.Length > 3) { if (startDateTZ[3] == ‘0’) { startDateTZ = _startDate.Substring(19, 4); } if (startDateTZ[3] == ‘2’) { startDateTZ = _startDate.Substring(19, 3); } } var startDate = new … Read more
[ad_1] Save the prior value and then reset it to the prior. int lastIndex = -1; if (q) { lastIndex = (ListView)Sender.SelectedIndex; } else { // Stop change from happening (ListView)Sender.SelectedIndex = lastIndex; } 2 [ad_2] solved How can I prevent a ListView option from changing? [closed]
[ad_1] Probably you do not initialize the pageLoad no where in your code. var prm = Sys.WebForms.PageRequestManager.getInstance(); prm.add_endRequest(pageLoad); This pageLoad is not a function that automatically called from UpdatePanel, you need to initialize that on javascript part. Actually is not a know function, so I guess that you copy paste this code from somewhere with … Read more
[ad_1] did you try AT+CSIMSEL=1 ? see 11.4 AT+CSIMSEL Switch between two SIM card in this document: http://www.scribd.com/doc/63648056/186/AT-CSIMSEL-Switch-between-two-SIM-card The command is used to select external or embedded SIM card. NOTE Embedded SIM card supported by customization. Customer should provide informationwritten into USIM chipset. The command is disabled if the embedded SIM card isn’t exist, i.e. … Read more
[ad_1] open ServerExplorer in ViEW menue and Right Click On Your DataBase go to Property then there is a ConnectionString I Think that is what you want … [ad_2] solved Connection String to SQL Server database for ASP.NET C#
[ad_1] You go for some micro-controller like Raspberry Pie (Link) or some other ARM based micro-controller that can be programmed using C++. Just google for such micro-controllers and corresponding tutorials. [ad_2] solved Storing a c++ code on a real device
[ad_1] Using NAudio, you could do the following: using NAudio.CoreAudioApi; ….. // download NAudio.dll from https://github.com/naudio/NAudio/releases // and add it as Reference to the project var devEnum = new MMDeviceEnumerator(); var defaultDevice = devEnum.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia); var volume = defaultDevice.AudioEndpointVolume; float leftVolumePercent = volume.Channels[0].VolumeLevelScalar * 100; float rightVolumePercent = volume.Channels[1].VolumeLevelScalar * 100; float masterVolumePercent = volume.MasterVolumeLevelScalar … Read more