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Questions tagged [user-interface]

User Interface (UI) is the system through which people interact with a computer. This tag can be used for UI-related programming questions. Note that there's a separate Stack Exchange site for User Interfaces, Interactions with the Computer and User Experience design: https://ux.stackexchange.com.

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Custom JPanel not being added to JFrame

I am creating a GUI that utilizes a custom JPanel that shows up three times in a row on a JPanel that is then added to the JFrame. For some reason, the custom JPanel does not show up when added to the ...
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NullPointerException when I triying to hand a icon in netbeans using jframe [duplicate]

I have added an image for my button,but when I run that frame this exception will be thrown .why? --- exec-maven-plugin:1.5.0:exec (default-cli) @ FTPTask --- Exception in thread "AWT-EventQueue-0" ...
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LCD Screen UI/UX

I currently have a raspberry pi and an LCD screen. I want to create a UI/app that shows up once it turns on. I want the UI to be full screen and not show the toolbar at the top. I want the UI/app to ...
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(Beginner) GUI Problem in student Project

as i said im a beginner and really trying to get this programm startet with my group as a project. Our goal is to calculate different things for a cutting machine(not sure about the name but isn't ...
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1answer
21 views

Error: login() missing 1 required positional argument

I tried coding a login page using tkinter, but I'm getting an error. Here is my code: from tkinter import * def register(event): screen1 = Toplevel(screen) screen1.title("Register") ...
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How to correct this error PyPDF2.utils.PdfReadError: Cannot read an empty file

I have this code that returns an error packet = io.BytesIO() c = canvas.Canvas(packet) packet.seek(0) new_pdf = PdfFileReader(packet) template = PdfFileReader(open('path_to_template'), "rb") output =...
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Using Classes when Python Scripting for Maya

I am working through Maya Programming with Python Cookbook by Adrian Herbez and having trouble with an example (pg. 31) which creates a class which produces a user interface for making simple spheres ...
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2answers
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Flutter tabBar how to change from top to buttom

I am pretty new in Dart Flutter. I have this problem I follow the guide to creating a tab bar, But is at the top, what I am trying to achieve is to have the tab at the bottom instead of at the top. ...
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minimal_cocoa in wxWidgets - What should it look like at run - Post screenshot here please

Hello wxWidgets/C++ Devs: I am new to both XCode and wxWidgets I want to know what minimal_cocoa should should look like? I am using the latest wxWidgets as of yesterday. I did a git clone / ...
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1answer
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How to align material icon on right of a input field?

I am using mat auto complete text box. I have a search icon currently it is aligned left of input. I want to align it on right. Could any one please help me? <mat-form-field floatLabel="never" ...
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How to change AppBar colour when another tab is selected using ChangeNotifierProvider on Flutter?

I know how to change the colour of the AppBar using tab controller and set state, but every time I click on another tab, all the widgets are rebuilt and my app makes another http.get call. I know that ...
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Seperating concerns in PyQt5 GUI app. Need seperate Qthread for concurrency

I have a simple GUI window made using PyQt5 Library. ` import sys, csv, time from datetime import datetime from time import strftime,localtime import threading import pandas as pd import numpy ...
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W.r.t. GUI, what's the difference between Jupyter Notebook and Google Colaboratory?

This question might be a duplicate of this, but no solution has been given yet, so let me make it clear. I've just tried to create a GUI with Tkinter on Google Colaboratory, then I got: ---------...
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1answer
31 views

Swing - How to limit my app to screen size

In my app, I need a window to display an image viewer, with the following size constraints: If the image is small, the window adjusts its size to the image and does not display scrollbars If the ...
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Dynamic tree in plain html,js and css [closed]

I would like to build a GUI for a search filter, which works similiar to the jquery query builder. I'm limited to use html,js and css for the development. Users can choose from a dropdown menu which ...

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