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    YouTubers Ask Programming

    September 11, 2020
    AskProgramming

    YouTubers Ask Programming

    YouTubers

    Posted: 11 Sep 2020 10:09 AM PDT

    What's your favourite programming related YouTube content? Looking to watch more stuff for inspiration/pass time.

    submitted by /u/smug_avocado
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    How do you make a background fade from white to black? Using HTML.

    Posted: 11 Sep 2020 05:25 PM PDT

    So, for my assignment I have to create a website through google sites, I decided to use the HTML part of it, because google sites is trash. My question is, how do I make the background fade from one colour to another?

    submitted by /u/Kartik_Strike
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    Any ideas regarding this interview question?

    Posted: 11 Sep 2020 05:34 PM PDT

    We have a list of sentences, each of which are "positive" or "negative."

    A "negative" sentence has one and only one word that is negative, and a "positive" sentence has no negative words.

    We have to identify the set of words which could be "negative."

    (A negative word such as "no", "not", etc. The point is, we are assuming we don't know which words count as "negative" words).

    For example we might be given the Strings

    "I am not happy"", "She is happy", "She is not happy", "I am glad", "You are no good", "I will go outside," "I will not do that"

    And their categories:

    negative, positive, negative, positive, negative, positive, negative.

    Given that each negative sentence contains one and only one negative word, and each positive sentence contains no negative words, how can we find all possible assignments of negative words?

    submitted by /u/angry_red_phoenix
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    What languages do you use for work?

    Posted: 11 Sep 2020 12:03 PM PDT

    Every time I see a post on here about a specific problem I almost feel lost. I can program in C/C++ (and have programmed some game creation tools in assembly) recently finished a Python course and know some basics about HTML and CSS.

    I come from a videogame programming background so sometimes when I see examples on here that may be from a web back end or something else, I just don't know where to start with it. So what are the languages you know, would recommend I learn to succeed as a software developer?

    I have a portfolio of game ideas and a few app ideas and have some more ideas I want to implement. What would you say are the most commonly used languages in the industry? It can be for any section of the industry, web, writing apps, whatever.

    Thank you! Also if anyone has any suggestions, where should I go from here having learned Python? I feel like my knowledge is outdated or too niche.

    submitted by /u/TheFilthyPixels
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    Python: How to draw a box on the screen and get the coordinates?

    Posted: 11 Sep 2020 08:14 PM PDT

    Hello, I am just wondering how can I draw a box on the screen and the get the top left and bottom right corner of such box? I was thinking maybe doing this with pyautogui but I am not too familiar with the library

    submitted by /u/Ok-Cod1551
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    [LANGUAGE???] Help me out with that...

    Posted: 11 Sep 2020 11:59 AM PDT

    Hello guys! I came across a problem today, which I had an idea to solve, but I don't know if it is possible to do.

    Here's what happens:

    To do a job, I need to access the browser and enter with my login in the website that contains a program that I use to receive the content available (Boxes arriving daily), through a wireless collector, which in turn tells the program the number of the box bar code, one by one. This is the first step in the process.

    After doing that, i need to access a pre-programmed Excel spreadsheet to receive data from the wireless collector, which in turn takes information from the beep boxes and sends the command to a thermal printer draw up a label.

    To perform these tasks, today. I need to be minimizing each of the windows (browser and Excel spreadsheet) every time I need to beep the box to perform the first and second processes.

    In a 'nutshell', here's what I need to do in each process.

    In the first: (Make sure I'm signed in to my account to the browser program) ✓ Pick up a box and beep the barcode> See the status "received" on the screen> done.

    In the second: (With the Excel spreadsheet open) ✓ Pick up a box and beep the barcode> Wait for the thermal printer to print the label> Done.

    What I think about doing is, in a single beep, receiving the box, and already sending the command to the thermal printer to print the label.

    What I don't know is: is there a possibility to integrate the two windows (Browser / Excel) for this to be done?

    I talked to some close friends who understand programming, but they ended up being very vague and I didn't have the opportunity to put into practice what they guided me, because I didn't even know where to start 😄😄☹️😭😭😭

    They talked about making a script and a background, with some programming languages, if I'm not mistaken they mentioned Java, Python and a lot more that i can't remember now...

    Can you help me? Is there a solution similar to the one I mentioned that is possible to put into practice? Can you guide me by sharing a similar project, a guide document, a video lesson, something like that?

    I'm immensely grateful, thanks in advance!

    Note: English is not my native Language* ~my bad~ 🙂

    submitted by /u/johnscottie
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    Google Developers Certification

    Posted: 11 Sep 2020 10:24 AM PDT

    From your experience, are these worth getting? Specifically the Associate Android Developer Cert. I am a self taught programmer without a CS degree. I have some projects built but not a lot of proof of education.

    submitted by /u/societalghost
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    char* in C

    Posted: 11 Sep 2020 03:48 PM PDT

    What does char* do in C? Does it work the same way as creating a char array and storing a string into it.

    ​

    Example Given:

    char* s1 = "hello";

    char* s3 = "abc";

    submitted by /u/LetsAllBeSuccessful
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    Another question

    Posted: 11 Sep 2020 03:32 PM PDT

    What should I focus on the most when learning frontend?

    submitted by /u/JustCallMeCizz
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    [ASP.NET] Why are dynamically created buttons not seen in page_load?

    Posted: 11 Sep 2020 03:30 PM PDT

    I have an ASP.NET page, in the Page_Load() event I am getting a list of categories from my database and populating a div (ID=CategoriesPane) with a bunch of Button controls, one for each category retrieved from the DB. 

     //Get categories DBQuery qry = new DBQuery(); DataTable categories = qry.GetCategories(); //Load Categories for (int i = 0; i < categories.Rows.Count; i++) { Button catbtn = new Button(); catbtn.Attributes["class"] = "category-listing"; catbtn.Click += new System.EventHandler(CategorySelected_Click); catbtn.Attributes["runat"] = "server"; catbtn.ID = "CatSelBtn" + i; catbtn.Attributes["data-categoryid"] = qry.GetCategories().Rows[i]["id"].ToString(); catbtn.Text = qry.GetCategories().Rows[i]["Name"].ToString(); CategoriesPane.Controls.Add(catbtn); }

    When a button is clicked it will run the CategorySelected_Click() method which does the same thing except this time it retrieves a set of Items using the selected category's "data-categoryid" attribute. These buttons are added to an UpdatePanel called "ItemsPanel".

     protected void CategorySelected_Click(object sender, EventArgs e) { DBQuery qry = new DBQuery(); DataTable items = qry.GetItems(); Button btn = (sender as Button); string categoryid = btn.Attributes["data-categoryid"].ToString(); for (int i = 0; i < items.Rows.Count; i++) { if (items.Rows[i]["Category"].ToString() == categoryid) { Button ibtn = new Button(); ibtn.Attributes["class"] = "item-listing"; ibtn.Click += new System.EventHandler(this.ItemSelected_Click); ibtn.Attributes["runat"] = "server"; ibtn.ID = "ItmSelBtn" + i; ibtn.Attributes["data-itemid"] = qry.GetItems().Rows[i]["id"].ToString(); ibtn.Text = qry.GetItems().Rows[i]["Name"].ToString(); ItemsPanel.ContentTemplateContainer.Controls.Add(ibtn); } } }

    The buttons are rendered on the page as expected and I can see them on my screen, however this is where we run into problems. As you can see in the code these item buttons are supposed to call a third method called ItemSelected_Click() which will fetch the details of the item and update a second update panel. The problem is when I click one of these buttons, nothing happens. The button exists and I can clearly see it in front of me but clicking on it does nothing, it does not trigger the ItemSelected_Click() method.

    Now I thought the solution to this was to add the event handler back to the buttons in the PageLoad event because they were getting lost when the page posted back. I attempted that by adding this to Page_Load()

     foreach (var ctrl in ItemsPanel.ContentTemplateContainer.Controls) { Button ibtn = ctrl as Button; if (ibtn != null) { ibtn.Click += new System.EventHandler(this.ItemSelected_Click); System.Diagnostics.Debug.WriteLine("Re-registered button click event."); } }

    But that did not work either. Upon further investigation I found that Page_Load() was not seeing the button at all. I changed that for loop for debugging so it looked like this:

     foreach (Control ctrl in ItemsPanel.ContentTemplateContainer.Controls) { System.Diagnostics.Debug.WriteLine("Found a control " + ctrl.GetType()); }

    And this is what would appear in my console on initial page load or any time I clicked a button. No mention of a button control, just the default controls that the UpdatePanel turns into:

    Found a control System.Web.UI.LiteralControl Found a control System.Web.UI.LiteralControl

    If I selected a category with 0 items I would get the same output as when i selected a category with 1 item. This tells me that Page_Load() is not seeing the buttons at all. Why is this? And how can I make this work?

    submitted by /u/fataldarkness
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    Running One (or two) 32-bit .exe applications as "OS"?

    Posted: 11 Sep 2020 10:22 AM PDT

    Hello how are you all doing, I am currently working on a project which is recreating a VSTi plugin into a real piece of hardware. The plugin is Nexus 2, and I want to run just this program for the device I am building. So far, I have already designed the physical hardware and components in Sketchup and I am now designing circuits and am considering using an Arduino micro controller to interface between the controls and the computer

    I was wondering is there a way I can build a small 32 bit system and reprogram it to some sort of kiosk mode where it locks it to just run the needed VST host and the VSTi on boot? This may already be an extensive post but I also had one more question.

    How would it be possible to use analog buttons and potentiometers to control the plugins' parameters? Maybe something like detecting user input from the analog parameter and then having some sort of code run to mimic a mouse click on a fixed point on the display? How would this work with potentiometers? I know this may not be enough information for someone to help so if more is needed, please let me know.

    Thanks!

    submitted by /u/IsmasReign
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    What API would you like to see?

    Posted: 11 Sep 2020 02:03 PM PDT

    I'm looking for a new personal project and was thinking doing it in an Api form.

    Eventually the idea is to make the Api public as that requires some extra challenges in security and scalability.

    Now i just need some suggestions on what kind of Api i should make.

    So have at it!

    submitted by /u/Johnny_Deee
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    [C][WIN32] Sound is not outputted correctly on slower PCs

    Posted: 11 Sep 2020 02:01 PM PDT

    I am writing a small program that outputs a Click-Sound when pressing a key on my keyboard.
    Now my problem is, when I try my program out on my Computer, then it works as expected. But when I try to use it on my laptop (which is weaker) then the sound is not outputted when I am typing fast.

    Now while it would be easier to just mention in the minimum system requirements that you need a 3900x to execute it properly, I would really like to find out what the problem is.

    So here is my code:

    #ifndef UNICODE

    #define UNICODE

    Read more
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