qr | QR codes - go get rsc | QRCode Processing library
kandi X-RAY | qr Summary
kandi X-RAY | qr Summary
go get [-u] rsc.io/qr.
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qr Key Features
qr Examples and Code Snippets
Lines of Code : 4
License : No License
Copyitchat.auto_login(enableCmdQR=True)
# for some linux system, width of block character is one instead of two, so enableCmdQR should be 2
itchat.auto_login(enableCmdQR=2)
itchat.auto_login(enableCmdQR=-1)
public static void main(String[] args) {
grid = new int[base][base];
total = (base - 4) * (base - 4);
for (int r = 0; r < base; r++) {
for (int c = 0; c < base; c++) {
if (r < 2 || r > public static BufferedImage generateQRCodeImage(String barcodeText) throws Exception {
ByteArrayOutputStream stream = QRCode
.from(barcodeText)
.withSize(250, 250)
.stream();
ByteArrayIn public static BufferedImage generateQRCodeImage(String barcodeText) throws Exception {
QRCodeWriter barcodeWriter = new QRCodeWriter();
BitMatrix bitMatrix = barcodeWriter.encode(barcodeText, BarcodeFormat.QR_CODE, 200, 200);
Community Discussions
Trending Discussions on qr
QUESTION
I'm trying to parse a DNS response using java. I'm following RFC-1035 for guidelines on how to send requests and receieve responses, the format that is.
According to said RFC the answer section of a response should look like so:
...ANSWER
Answered 2022-Apr-04 at 15:33My problem is that I can't seem to parse the NAME in the answer section. It seems to start with a pointer which makes no sense.
I probably know at lot less about this than you but am wondering why you say that? firstByte is telling you there's a pointer and the following value (0x0c) shows you the offset of the name for compression purposes (if I've got that right). None of the other bits in the same byte as firstByte is set so that can be ignored from the point of view of the offset value
QUESTION
I am trying to connect my Android 11 device with android studio over adb wifi but it is not working.
I updated to latest stable bumblebee and updated my SDK I tried turning off firewall on my pc but it is same result.
When I use QR code method my android phone just shows "pairing device" and nothing happens If I try the code method, android studio just shows "searching for devices" but nothing happens
and, yes, I enabled wireless debugging on my phone and I am connected to the same wifi network.
I don't know if the problem is with my computer or phone. I do not have any other Android11+ phone to try with
...ANSWER
Answered 2022-Jan-30 at 21:44I was having the same problem as you. Neither pairing by QR nor by pairing code worked.
So I tried connecting by typing adb connect [phone_ip]:[port] in the terminal and that worked flawlessly. Didn't even need to plug the phone to the computer with USB. Your phone will tell you the IP and port right above the "pair with QR code" option inside the Wifi-debugging setting. Just connect to that address.
QUESTION
We use declarations like the following one (Manifest) to link to certain parts of the app:
...ANSWER
Answered 2022-Mar-03 at 04:01UPDATE
After test some case, I found you should change your scheme from https to non https string, such as your_app_string. If you still want to use https as your scheme, you should check the doordash's tech blog.
Your should make the android system can verify your scheme.In simple words,start with android 12(api 31), you need Declare the association between your website and your intent filters by hosting a Digital Asset Links JSON file at the following location:
https://some.domain.com/.well-known/assetlinks.json
QUESTION
After updating my npm packages, some of the imports from the 'vue' module started showing errors:
TS2305: Module '"../../node_modules/vue/dist/vue"' has no exported member 'X'
where X is nextTick, onMounted, ref, watch etc. When serving the project, Vue says it's "failed to compile". WebStorm actually recognizes the exports, suggests them and shows types, but the error is shown regardless. Some exports like computed and defineComponent work just fine.
What I've tried:
- Rollback to the previously used Vue version "3.2.2" > "3.0.11". It makes the abovementioned type errors disappear, but the app stops working entirely, showing lots of
TypeError: Object(...) is not a functionerrors in console and not rendering the app at all. In the terminal, some new warnings are introduced:"export 'X' (imported as '_X') was not found in 'vue'where X is createElementBlock, createElementVNode, normalizeClass and normalizeStyle. - Rollback other dependencies. None of the ones that I tried helped fix the problem, unfortunately.
- Manually declare the entirety of 'vue' module. We can declare the 'vue' module exports in shims-vue.d.ts, and it actually makes the errors disappear, however, this seems like a terrible, time-consuming workaround, so I would opt out for a better solution if possible.
My full list of dependencies:
...ANSWER
Answered 2021-Aug-15 at 13:53That named exports from composition API are unavailable means that vue is Vue 2 at some place which has only default export. Since Vue 3 is in dependencies and both lock file and node_modules were refreshed, this means that Vue 2 is nested dependency of some direct dependency.
The problem needs to be investigated in lock file. It shows that @vue/cli-plugin-unit-jest@4.5.13 depends on vue-jest@3 which depends on vue@2.
A possible solution is to upgrade @vue/cli-plugin-unit-jest to the latest version, next. The same likely applies to other @vue/cli-* packages because they have matching versions.
QUESTION
I have an activity that requires camera permission.
this activity can be called from several user configurable places in the app.
The rationale dialog and permission dialog themselves should be shown before the activity opens.
right now I am trying to handle these dialogs in some kind of extension function.
...ANSWER
Answered 2022-Jan-13 at 14:01One approach that I've implemented and seems viable to use is this:
Class PermissionsHelper
QUESTION
Im new in xamarin, Im trying to make a Button that opens a scanner form that scans qr/barcode that is MVVM method. Im trying to get the result and display it into a label. this is my best guest but it doesn't work, hope someone can help.
...ANSWER
Answered 2021-Dec-22 at 09:51You can use the code-behind the view for the actions. And use the VM for other properties
XAML:
QUESTION
I am trying to extract the complete Aadhar number (12 digits) from the image of an Aadhar card (India)
I am able to identify the region with QR code. To extract the info - I have been looking into python libraries that read and decode Secure QR codes on Indian Aadhaar cards. These 2 libraries seem particularly useful for this use case:
I am unable to decode Secure QR code using them on Aadhaar cards. Information on Secure QR code is available here. Please recommend possible resolutions or some other methods to achieve this task
Here is my code for decoding secure QR code using these libraries. Python version: 3.8
...ANSWER
Answered 2021-Sep-20 at 09:33For anyone who needs to extract a clean QR code ROI before actually decoding it, here's a simple approach to extract the QR code using thresholding, morphological operations, and contour filtering.
Obtain binary image. Load image, grayscale, Gaussian blur, Otsu's threshold
Connect individual QR contours. Create a rectangular structuring kernel with
cv2.getStructuringElement()then perform morphological operations withcv2.MORPH_CLOSE.Filter for QR code. Find contours and filter using contour approximation, contour area, and aspect ratio.
Here's the image processing pipeline
Load image, grayscale, Gaussian blur, then Otsu's threshold to get a binary image
Now we create a rectangular kernel and morph close to combine the QR code into one contour
We find contours and filter for the QR code using contour area, contour approximation, and aspect ratio. The detected QR code is highlighted in green
Extracted ROI
Code
QUESTION
There is a new regulation from the Government asking all VAT registered companies to implement QR CODE in the new E-Invoice.
The QR code fields shall be encoded in Tag-Length-Value (TLV) format with the tag values specified in the “Tag” column of the adjacent table.
The TLV encoding shall be as follows:
- Tag: the tag value as mentioned above stored in one byte.
- Length: the length of the byte array resulted from the UTF8 encoding of the field value. The length shall be stored in one byte.
- Value: the byte array resulting from the UTF8 encoding of the field value.
How do I create TLV From an Array of Information? Is there a library that I can use?
...ANSWER
Answered 2021-Oct-13 at 20:50Yes, the QR code required is not a normal QR code with a link. It should be TLV base64 encoded. It can be done very easily. the values need to be hexed and then combined which will contain ASCII control characters.
If you still don't get it, Luckily, You can use the following package by Salla to generate a QR code from the array.
https://github.com/SallaApp/ZATCA
Make sure to follow the Tag structure provided by the ZATCA (GAZT previously). The package's example has the correct array:
QUESTION
I'm using the QR-Bill library v2.5.3. As one of its dependencies, it specifies PDFBox using the range [2.0.0,3.0):
ANSWER
Answered 2021-Nov-22 at 04:28Maven's ordering implementation states than alpha, beta, and RC versions are lesser that an actual release. This is why you see this behavior happening.
So, in practice pdfbox-3.0.0-RC1 < pdfbox-3.0.
In order to exclude 3.0 completely you need to exclude the first pre-release. Some ways you can achieve that:
[2.0.,3-alpha)
[2.0.0,3.0.0-alpha2)
Or another option -which is not ideal- is to specify the upper-bound of the range as the latest revision of the 2.x release:
[2.0.0,2.0.24]
This last option is far from great because if Apache releases a revision of 2.x named 2.0.25, Maven wont include it.
QUESTION
Before I begin let me say that I read thoroughly all the stack overflow posts and resources in the appendix, and could not find a solution to my problem.
I am trying to create, validate and connect a subdomain through Route53 and AWS Certificate Manager. The subdomain is challenge.sre.mycompany.com.
The terraform plan looks something like this:
...ANSWER
Answered 2021-Nov-10 at 23:11Your CNAME in your zone file has a mycompany.com on the end. That's not the normal way to do a CNAME. Should probably be:
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