Alyn | Detect and fix skew in images containing text

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Detect and fix skew in images containing text

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Tkinter Button runs program in background and allows user input

Reading from file and outputting to console through vector

QUESTION

Tkinter Button runs program in background and allows user input

Asked 2020-Apr-03 at 10:59

Sorry if the title is not accurate to what I am trying to do. It was the best way of explaining my problem at the time.

Okay so on to my problem:

I am trying to create a Tkinter program that when a button is clicked a program that I have created will run in the background and will not stop the user from using the Tkinter program. (Sorry, I really hope you understand this) The closest thing I can think of, that is doing something similar to what I am trying to do, is when you click the "scan this computer" on your anti-malware. It runs the scan but still allows the user to click cancel and go about the program if they want. I am able to get the program to run the command but every time it focuses all of its' attention on the scan and I (the user) can no longer browse about the program.

I have tried using multi-threading but I cant tell if I am supposed to use that for the program or if I am supposed to use multi-processing, I don't know.

(I don't know if when you paste all of this into a file if it will work or not) I will try to post as much of the code as possible:

Main Script ...

ANSWER

Answered 2020-Apr-02 at 16:39

Instead of using root.mainloop(), add the root.update() in your main function, inside the main loop if there is one. Hope that's helpful!

Source https://stackoverflow.com/questions/60996384

QUESTION

Reading from file and outputting to console through vector

Asked 2020-Jan-22 at 06:07

I'm trying to read from this file file.txt which contains contents of the contestants who participated in the long jump event during the Olympic games.

The file is in the format of [First Name] [Last Name] [Nationality] [Distance]

There are 40 contestants in this file. I'm trying to organize them such that there is a vector of pointers of athletes, 40 to be precise. Then dynamically allocate them to the heap. Each athlete is one object in the vector.

Once each athlete object is entered into the vector, I wish to output all the contents of the vector onto the console through a for loop.

However, as it currently stands, in my code I do have 40 objects allocated to the vector, but its the same one being repeated 40 times. The last object is also being repeated twice for some reason.

Any help would be greatly appreciated! Thanks in advance.

Test.cpp

...

ANSWER

Answered 2020-Jan-21 at 16:15

Avoid calling new and delete explicitly to dynamically allocate memory. You don't need it in combination with STL containers. A container allocates and manages the memory on the heap.
The for loop is not necessary. For each element you read you overwrite all elements with the last read element.
You print the first element from the vector for each element you read:

Change

Source https://stackoverflow.com/questions/59843683

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