background-foreground

问题 I have created Jtree with Root node and 4Subnodes. My problem is like this: I need to change the foreground and background color of a particular node dynamically. How can i do it? Help me with some piece of code. Thank you all in advance... 回答1: How can i do it? I'm sure that JTree tutorial contains valuable info about DefaultTreeCellRenderer, Help me with some piece of code. tons of examples here or here or here 回答2: One easy way I found was to include HTML markup in the node text. The

问题 I'm working with djcelery and supervisor. I was running a celery with supervisor and everything worked fine, once I realized that I needed to change it to celery multi everything broke up. If I run celeryd_multi in a terminal it works but always run in background, like supervisor need that the command run in foreground there where the problem is. This is my celery.ini : [program:celery_{{ division }}] command = {{ virtualenv_bin_dir }}/python manage.py celeryd_multi start default mailchimp -c

问题 In this previous question I posted most of my own shell code. My next step is to implement foreground and background process execution and properly wait for them to terminate so they don't stay as "zombies". Before adding the possibility to run them in the background, all processes were running in the foreground. And for that, I simply called wait(NULL) after executing any process with execvp(). Now, I check for the '&' character as the last argument and if it's there, run the process in the

问题 Is there any windows apps/google chrome flags/google chrome extension/javascript methods or any other thing that would allow to bring a chrome window from background(minimized) to foreground when something happens inside a website. I do have access to the client computer, I could set chrome flags/kiosk mode or anything that would prevent it from opening to foreground if it's possible. For example I am trying to bring the window to foreground when an order comes in, through a notification (I'm

问题 I am working on an application having both WinForms and WPF controls; In case of WinForms TextBox selected text Background color comes Blue and White respectively whereas in WPF TextBox it is LightBlue and Black. As answered in these questions I can use SelectionBrush property(WPF 4) to change the selected text's background, but How can I change the foreground color of selected text? How can you change the highlighted text color for a WPF TextBox? How can I change the highlighted text color

问题 I am doing some work regarding tracking a person, I am using this dataset. I am trying right now to extract foreground using background subtraction method i.e. Mean Filter My background is like and if I try to subtract my current frame like this so after subtraction I am getting image like this and after thresholding of 0.15 or 38 I get this mask So if you notice this mask, it is splitting this foreground in to two pieces because of occlusion of person and chair. I dont know how to solve this

问题 i want to change a label in my view controller when the app enters the foreground....: SalaryAppV4AppDelegate.h @interface SalaryAppV4AppDelegate : NSObject <UIApplicationDelegate, UITabBarControllerDelegate> { //---------------------------------------------- NSTimeInterval appEnteredBackground; NSTimeInterval appEnteredForeground; NSTimeInterval difference; NSString *times; //----------------------------------------------- SalaryAppV4AppDelegate.m - (void)applicationWillEnterForeground:

问题 I have code within my app delegate's application:didReceiveLocalNotification: method to display an UIAlertView for that local notification, whenever my app is in the foreground. If my app is within the background when the local notification arrives the user gets presented with the notification and is able to launch the app by selecting it. In this case my app comes to the foreground my App Delegate's applicationWillEnterForeground: is called. Afterwards though my didReceiveLocalNotification

问题 I try to create foreground service that toast a message every 20 second but this service stop after a few minutes or locking the phone. I test this service in android 8 (O). my code is : @Override public int onStartCommand(Intent intent, int flags, int startId) { input = intent.getStringExtra("inputExtra"); new Thread(new Runnable() { public void run() { while (progressStatus < 10000000) { progressStatus += 1; handler.post(new Runnable() { @SuppressLint("MissingPermission") public void run()

问题 Is it possible to modify the colors of an Image in WPF via code (or even using Templates)? Suppose I have an image which I need to apply to a Tile - which will have a White Foreground color by default and a Transparent Background. Something like the following PNG (it is somewhere here!): Instead of adding different images - with different colors, I just want to manipulate the White - and say change it to Black. If it can be done, can someone give me a few pointers on what I need to do/look