repaint

The Problem Occurs on IE10. (IE8 works fine.) I've written some JavaScript code that, after 20 minutes of inactivity, redirects the browser to another URL to indicate the user was logged out. Normally this works fine. However I've noticed a strange scenario.... if the user's Windows computer was locked during this timeout then it appears as though nothing has happened. However, when I look at the browser's URL bar, I can clearly see that the URL has already been updated to the auto-logout page. But the entire content of the browser window is still displaying the old page!!!! For some reason,

I am playing around with the Java graphics class a little bit and I was just wondering--when is it necessary to call the method repaint() ? I tried commenting it out and it didn't seem to affect my output GUI. I've seen it used a lot in Java GUI code that I've read, though. Would anyone mind explaining when to use it and when not to use it? The repaint() refreshes the view (component), so whenever you make any change on the component, you must call it. For instance, if you rotate the graphical component, you must make a call to repaint() in order to see the change on the containing component

I have a simple object which extends JPanel , when the update() method is called on this object it it meant to add some labels to the panel and then repaint. However the labels do not show up after the update method is called, below is the code for update: public void update(){ GridBagConstraints constraints = new GridBagConstraints(); if(cardsHidden){ for(int i = 0; i < 2; i++){ constraints.gridx = i; constraints.gridy = 0; JLabel card = new JLabel(PlayingCards.cardImages[PlayingCards.CARD_BACK_INDEX]); add(card, constraints); } } else{ Card[] holeCards = player.getHoleCards(); for(int i = 0;

Having trouble with a simple paint pad in java. Issues with getting my clear button to repaint. The array is clearing but not repainting. Can anyone spot my problem or is there any different way of generating a clear button for this code. public class DrawingPanel extends JPanel { private double x1=0; private double x2=0; private double y1=0; private double y2=0; private ArrayList<Shape> myArr = new ArrayList<Shape>(); //private ArrayList<Shape> clearMyArr = new ArrayList<Shape>(); ButtonPanel buttonPress; public void paintComponent(Graphics g) { for (Shape i : myArr) { Graphics2D g2d =

For example I need to disable two buttons in runtime. After I disabled first button it bacame gray, the second - it also became gray. But I do not know how to make the repainting simultaneous! I need something like that: freeze the Form (disable repainting) disable first button disable second button Enable Form repainting How to implement that? Look at the Win32 API WM_SETREDRAW message. For example: SendMessage(Handle, WM_SETREDRAW, False, 0); Button1.Enabled := False; Button2.Enabled := False; SendMessage(Handle, WM_SETREDRAW, True, 0); InvalidateRect(Handle, nil, True); Messages cannot be