OStack Q&A-Knowledge Sharing Community

0 votes

392 views

1 answer

python - GetWindowRect too small on Windows 7

The actual problem I'm trying to solve is, I want to automatically find out the size of the margins around windows. ... How may I do the same? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

458 views

1 answer

python - pySerial 2.6: specify end-of-line in readline()

I am sending commands to Eddie using pySerial. I need to specify a carriage-return in my readline, but ... return None else: return response See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

534 views

1 answer

mysql - How to echo out table rows from the db (php)

i want to echo out everything from a particular query. If echo $res I only get one of the strings. If I change the 2nd ... </td><tr></form> "; } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

877 views

1 answer

compare two images in android

In my application I want to capture two images using camera and then I want to compare those images. So, how can ... pixel to pixel. Thank You. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

461 views

1 answer

node.js - Fill missing dates in records

I have a collection of ProductViews. ProductView { productId: '5b8c0f3204a10228b00a1745, createdAt: '2018-09-07T17:18: ... based on this range See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

275 views

1 answer

Java Exceptions counter on JVM HotSpot

I am wondering is it possible to log every exception which occurs on JVM level without changing application ... anything similar for HotSpot. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

410 views

1 answer

exec - Running external program with redirected stdin and stdout from Java

I'm trying to running an external program from a Java program and I'm having trouble. Basically what I' ... stdin and stdout? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

769 views

1 answer

oop - Why can't I declare C# methods virtual and static?

I have a helper class that is just a bunch of static methods and would like to subclass the helper class. Some ... wasn't for a bit there. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.6k views

1 answer

c# - multiple JsonProperty Name assigned to single property

I have two format of JSON which I want to Deserialize to one class. I know we can't apply two [ ... to name1 property of specification class. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

400 views

1 answer

c++ - Is std::vector memory freed upon a clear?

Suppose I have a std::vector of structs. What happens to the memory if the vector is clear()'d? std:: ... vecs variable as a reusable buffer? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

321 views

1 answer

java - Error:Execution failed for task ':app:packageRelease'. > Unable to compute hash of /../AndroidStudioProjects/../classes.jar

I'm trying to do a 'release' build on an Android app and I keep on getting this error of: Unable to ... debug this issue that'd be great. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

datetime - Android convert date and time to milliseconds

I have one date and time format as below: Tue Apr 23 16:08:28 GMT+05:30 2013 I want to convert into ... it is. Can anybody please help me. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

369 views

1 answer

Check if any type of files exist in a directory using BATCH script

Hello I'm looking to write a batch file to check to see if there are any files of any type inside a given ... Empty" ) Thank you for your help See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

516 views

1 answer

javascript - 'load' event not firing when iframe is loaded in Chrome

I am trying to display a 'mask' on my client while a file is dynamically generated server side. Seems like ... any luck there either. Ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

217 views

1 answer

How to get Date object from json Response in typescript

Here is my json: { "data": [ { "comment": "3541", "datetime": "2016-01-01" } ] } Here is model: ... to Date object? What am i missing here? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

554 views

1 answer

image - How to convert getRGB(x,y) integer pixel to Color(r,g,b,a) in Java?

I have the integer pixel I got from getRGB(x,y), but I don't have any clue about how to convert it to RGBA ... Color(0,200,0,255). Any tips? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

207 views

1 answer

java - TransformException duplicate entry for common.annotations.Beta

This started when I added google-api-services-calendar. I am getting this error when trying to build: Error: ... too long. Any suggestions? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

342 views

1 answer

android - Toast created in an IntentService never goes away

I have an IntentService that downloads some files. The problem is that I create a Toast inside the IntentService like ... What am I doing wrong? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

691 views

1 answer

how to open a page in new tab on button click in asp.net?

I want to open a page in new tab of browser on button click. I have searched a lot on google but i couldn't ... help me how i can do this ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

985 views

1 answer

testing - How to test a function's output (stdout/stderr) in unit tests

I have a simple function I want to test: func (t *Thing) print(min_verbosity int, message string) { if ... abstraction library to handle this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

269 views

1 answer

c++ - How do I redirect output to a file with CreateProcess?

I tried using CreateProcess to run a simple command like hg > test.txt. I tried running the string as a whole (as ... .txt", ...) does not? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

285 views

1 answer

sql - "You tried to execute a query that does not include the specified aggregate function"

SELECT SUM(orders.quantity) AS num, fName, surname FROM author INNER JOIN book ON author.aID = book.authorID; I ... function. What do I do? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

189 views

1 answer

python - Why is `object` an instance of `type` and `type` an instance of `object`?

I am a little bit confused about the object and type classes in Python 3. Maybe someone can clear up my ... >> issubclass(object, type) False See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

281 views

1 answer

c++ - FAQ: Why does dynamic_cast only work if a class has at least 1 virtual method?

This does not compile in C++: class A { }; class B : public A { }; ... A *a = new B(); B *b = dynamic_cast<B*>(a); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

247 views

1 answer

Adding items to Swift array across multiple threads causing issues (because arrays aren't thread safe) - how do I get around that?

I want to add given blocks to an array, and then run all the blocks contained in the array, when requested ... .blocksArray.append(block) } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

142 views

1 answer

How to move a document in Cloud Firestore?

Can someone help me how to rename, move or update document or collection names in Cloud Firestore? Also is ... from terminal or any application? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

569 views

1 answer

A message body writer for Java class java.util.ArrayList...and MIME media type text/xml was not found

Im using Jersey to build a REST Service and want to return a Collection<String> as XML. @GET @Produces(MediaType. ... of string elements in it.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

383 views

1 answer

Android: Backspace in WebView/BaseInputConnection

I have a problem with soft keyboard backspace in Android (4.2). I have a custom editor in a WebView ... soft keyboard to always send backspace? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

Categories

Recent questions

Just Browsing Browsing

Most popular tags