[ad_1] The error is pretty clear. QMouseEvent *mouse; – you declare a pointer to the a QMouseEvent, but where is it instantiated? This is only a pointer which points to something. If you want to handle mouse events you probably have to overload some kind of widget’s mouse event (mouseMoveEvent, mousePressEvent, etc.). Those will provide … Read more
[ad_1] It looks like I was using too much memory, way too much. I only needed [257][257] in the end, not [257*257][257*257], so it was my bad. [ad_2] solved C++ Large 2D array (on the heap) crashes the application
[ad_1] Let me give you some direction Do not use a propertie to get your data, use a method like this: //returns an enumeration of users filtered by the given expression Public IEnumerable<User> GetUsers(Expression<Func<User, bool>> expression) { return db.Users.Where(expression); } // returns the first occurency of a user filtered by the given expression Public User … Read more
[ad_1] If Path actually contains double slashes (which usually doesn’t happen): Replace \\ with \ in path1 Replace path1 with Empty String in path2 string diff = path2.Replace(path1.Replace(@”\\”, @”\”), “”); Otherwise: string diff = path2.Replace(path1, “”); 9 [ad_2] solved Get Difference of 2 Paths [duplicate]
[ad_1] Use projection in LINQ: var ids = myClassList.Select(myClass => myClass.ID).ToArray(); Under using System.Linq; The Select extension method allows you to “project” a type into something else (including anonymous types). With the new type inference mechanisms in the compiler you don’t even need to specify the generic arguments for Select. The Select will return an … Read more
[ad_1] Canvas has two attached properties – left and top. You can do: MyGroupBox.SetValue(Canvas.LeftProperty,50.0); And similarly with topproperty where mygroupbox is your groupbox. 50 is a double and the distance in px from top or left edge of the canvas the top left corner of the goupbox is to be located. 4 [ad_2] solved How … Read more
[ad_1] Well it’s normal that in doesn’t enter the else statement. You’re doing if (num > 10) and num is the value entered by the user which never changes during the process. So if num = 15 you’re always doing is 15 > 10. Then only moment the else statement is gonna print is if … Read more
[ad_1] button1.Click+=(buttonThatWasClicked, args)=> { panel1.Visible = true; panel2.Visible = false; panel3.Visible = false; panel4.Visible = false; panel5.Visible = false; }; 9 [ad_2] solved How to assign Panels to Buttons in C# [closed]
[ad_1] You can use WPF if you’re talking about .NET and use Visual Studio, Expression Blend or KaXaml to build the GUI mostly using your mouse. You can use also Qt for C++ (or using QML in Qt) and build the GUI using QtCreator 2 [ad_2] solved Best GUI Maker Software To Build Attractive GUI … Read more
[ad_1] Open file using fgets or get line function read the file into temporary string check first character… Make sure to use tolower, before comparing void findString(char *filename, char ch) { char temp[100]; FILE *infile = fopen(filename, “rw”); while(infile != NULL) { fgets(temp,100,infile); if(tolower(temp[0]) == ch) cout << temp; } fclose(infile); } [ad_2] solved Reading … Read more
[ad_1] This is actually pretty easy. A queue of ints is no different than a queue of any other type, really. You could just as easily have a queue of lists or a queue of queues or anything like that. I’m using the queue constructor that accepts an IEnumerable to initialize these by the way. … Read more
[ad_1] Add DisplayType = cmdType.SelectedIndex to the AddEntry Tried using a String Builder? StringBuilder sb = new StringBuilder(mainWindow.ChangeTextBox); foreach (AddEntry list in addedEntry) { sb.AppendLine(list.Type); if (list.DisplayType == 1) sb.AppendLine(“URL: ” + list.URL); if (list.DisplayType == 0 || list.DisplayType == 1) { sb.AppendLine(“User Name: ” + list.UserName); sb.AppendLine(“Password: ” + list.Password); } if (list.DisplayType == … Read more
[ad_1] After newVector.insert(iter, 5), iter is not valid. That’s why insert returns an iterator. Your code should be iter = newVector.insert(iter, 5); 1 [ad_2] solved “Vector erase iterator outside range” error
[ad_1] How to capitalize a C string. #include <stdio.h> #include <ctype.h> int main() { int i = 0; char str[] = “foobar”; while(str[i]) { putchar (toupper(str[i])); i++; } return(0); } Test it online. [ad_2] solved Capitalizing a string in C
[ad_1] without knowing what the code does: The statement will evaluate the first part (match(s1, s2 + 1)), and if and only if it is zero, evaluate the second part (match(s1 + 1, s2)). If the first part is not zero, it returns true (or 1) 0 [ad_2] solved return (a || b) utility?