visa | A Go wrapper around National Instruments Virtual Instrument
kandi X-RAY | visa Summary
kandi X-RAY | visa Summary
Package visa wraps National Instruments VISA (Virtual Instrument Software Architecture) driver. The driver allows a client application to communicate with most instrumentation buses including GPIB, USB, Serial, and Ethernet. The Virtual Instrument Software Architecture (VISA) is a standard for configuring, programming, and troubleshooting instrumentation systems comprising GPIB, VXI, PXI, serial (RS232/RS485), Ethernet/LXI, and/or USB interfaces. The package is low level and, for the most part, is one-to-one with the exported C functions it wraps. Clients would typically build an instrument specific driver around the package but it can also be used directly. Supported Platforms: * Linux * OS X * Windows.
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Top functions reviewed by kandi - BETA
- Main entry point .
- OpenTCP opens a TCP connection with the given IP address .
- OpenGpib opens a connection to a gpib driver .
- userCB is called when a user event is received
- FindNext returns the first character of the search list .
- SetMarkerModeNorm normalizes the marker mode .
- OpenDefaultRM sets the default session .
- VersionsSubMinor returns the version number .
- VersionsMinor returns the version number .
- VersionsMajor returns the version of the version .
visa Key Features
visa Examples and Code Snippets
Community Discussions
Trending Discussions on visa
QUESTION
I have a Point of Sale system where all checks and tender details exist in a single table. I'm trying to write a SQL query in a way that I can see check totals by tenders to reconcile with cash flow and bank statements. Unfortunately the schema is not mine and can't change it.
One problem I ran into is that there are cases where one check has multiple transactions involving various tenders, therefore I need to do implement (business set) rules to allocate taxes evenly. Those rules might change in the future to say, allocate taxes to CC first if any, so I need to built in some flexibility.
The SQL table looks like this:
CheckID LineType TenderName LineTotal Tax 1 ItemSold 5.00 0.25 1 TenderTotal Cash 5.25 2 ItemSold 10.00 0.50 2 TenderTotal Cash 5.00 2 TenderTotal VISA 5.50 3 ItemSold 10.00 0.25 3 ItemSold 10.00 0.25 3 TenderTotal AMEX 10.25 3 TenderTotal VISA 10.25 4 ItemSold 10.00 0.50 4 TenderTotal Cash 20.00 4 TenderTotal Cash -9.50The resulting report needs to have one row per tender, with tax equally distributed among check tenders, and net revenue being the difference between total sale and tax.
TenderName TotalSale NetRevenue TaxCollected Cash 20.75 19.75 1.00 VISA 15.75 15.25 0.50 AMEX 10.25 10.00 0.25I tried using Select with Exists, also CTE and recursive CTEs, but can't quite figure it out how to do the tax part cleanly. Any other SQL tricks I could try?
We are using SQL Server 2012 at the moment, but have plans in plan to upgrade to 2016 in the near future.
...ANSWER
Answered 2022-Mar-29 at 16:14I don't know if the logic is right, but it gets you the results you are after:
QUESTION
I'm attempting to code my first website from scratch and I have found myself stuck on this problem for the last day. I am trying to center the logos for my mobile view. I have them placed correctly in my @media tag and they are displaying inside the grid however after countless tries I cannot get them to center inside of there grid columns. I do apologise if any of my code is messy.
...ANSWER
Answered 2022-Mar-28 at 23:57.company-logos img {
justify-self: center;
}
QUESTION
I have function generating dict template. Function consist of several generators and requires one parametr - carrier
and has many optional parameters **kwargs
ANSWER
Answered 2022-Mar-24 at 09:25Since your function "..has many optional parameters" and passengers
parameter requires a dictionary as an input, I would suggest you create a Pydantic model, where you define your parameters, and which allows sending your data in JSON
form and getting them validated, as well as converting the model to a dictionary using the dict() method.
QUESTION
Say I have a new table like such where there is no values yet:
key uuid dog cat deer etcand i have a populated table like such where it has values that i want to correlate to the new empty table:
key uuid format status 1 uuid1 dog hairy 2 uuid1 cat fluffy 3 uuid2 dog shaved 4 uuid3 deer smoothwhat i want to do is take each "format" from table 2 and create a new column in table 1 where "status" from table 2 is the value of the new "format" column in table one. Here is what i want the table to look like assuming the above tables are what im working with:
key uuid dog cat deer etc 1 uuid1 hairy fluffy null other value 2 uuid2 shaved null null other value 3 uuid3 null null smooth other valueThe extra tricky part is in table 2, uuid1 can have more or less "format" values than say uuid2 and visa versa continuing on to like 50k uuids so i need to fill the other columns with a null or falsey value
Is this possible or am I working with too ridiculous of data to make it happen?
...ANSWER
Answered 2022-Mar-22 at 20:01Since you have created the new table this means that you already know the possible values of the column format
.
In this case you can use conditional aggregation to populate the table:
QUESTION
Here is the code:
...ANSWER
Answered 2022-Mar-09 at 16:17This part of the loop
QUESTION
I'm trying to get paymentMethodId from the frontend part using the @stripe/stripe-react-native package. When I try to send this payment method id to the backend, It always responds
"error": "No such PaymentMethod: 'pm_1KXyV2SIMTNTi7PjZyzhziG2'"
Here's a JSON response of createPaymentMethod function.
...ANSWER
Answered 2022-Feb-28 at 06:55Your React Native code looks normal. You may want to confirm what your backend is doing when it receives that PaymentMethod.
The error message "No such PaymentMethod..." is a common error when your backend uses a secret key that belongs to a different Stripe Account than your frontend's publishable key.
QUESTION
I have the following classes:
JobSeeker which owns a CreditCard which has a CreditCardType
...
ANSWER
Answered 2021-Aug-09 at 05:34Where is
CreditCard
marked as non-owned?
In JobSeekerContext
here
QUESTION
I have two codes for Splash.jsx and one for homepage.jsx. All I want is to display the Splash screen once the Homepage is not in use, but I have no idea how to integrate the splash screen with the Homepage and set the timer, so the splash screen is displayed once I don't use Homepage. It would be great to help me out with showing the splash screen once the Homepage is not in use. Homepage.jsx
...ANSWER
Answered 2022-Feb-08 at 09:55You can use react-idle-timer package. A working solution exists here
QUESTION
I have followed a tutorial "Create HTML Form that Moves through RecordSet on Google Sheets" done by Code With Curt. https://www.youtube.com/watch?v=V9ptq7tZV50&t=152s
The project doesn't look that complicated. It is a simple CRUD app that I want to run in a modal dialog in google sheets, I am a newbie, I really tried to understand the code that I was copying from the video and not make any typos. The form shows up OK from the custom menu but it is not populating with the data from the sheet. The only error I can see is in the console which says "Uncaught ReferenceError: loadRecords is not defined" I have double checked the variable and function names but just can't see the error.
Any help would be appreciated.
Code.gs
...ANSWER
Answered 2022-Feb-06 at 17:23Regarding the specific error, the parenthesis are missing in two lines:
var nextRecord = Number record + 1;
var previousRecord = Number record - 1;
Correct syntax
var nextRecord = Number(record) + 1;
var previousRecord = Number(record) - 1;
As mentioned in the Yuri's answer, the video that you used looks to have some problems. From my point of view it's obsolete, one hint is that it's using the now called "Classic Editor" instead of the current default editor. It's weird that the comment with the code was removed, next time start with a more recent example and once you have learned how to debug and learned the differences between the "old" Google Apps Script and the new (i.e. old runtime based on Mozilla Rhino, and the new runtime Chrome V8), go to old tutorials / examples.
P.S. It might be possible that if you are using new editor that your project is using the new runtime, if you want to try the code as is in the video, try enabling the Rhino runtime, for details see https://developers.google.com/apps-script/guides/v8-runtime.
Related
QUESTION
I am trying to get to grips with the specifics of the (C++20) standards requirements for container classes with a view to writing some container classes that are compatible with the standard library. To begin looking into this matter I have looked up the references for named requirements, specifically around container requirements, and have only found one general container requirement called Container
given by the standard. Reading this requirement has given my two queries that I am unsure about and would like some clarification on:
The requirement for the expression
a == b
for two container typeC
has as precondition on the element typeT
that it is equality comparable. However, noted later on the same page under the header 'other requirements' is the explicitly requirement thatT
be always equality comparable. Thus, on my reading the precondition for the aforementioned requirement is redundant and need not be given. Am I correct in this thinking, or is there something else at play here that I should take into account?I was surprised to see explicit requirements on
T
at all: notably the equality comparable requirement above and the named requirement destructible. Does this mean it is undefined behaviour to ever construct standard containers of types failing these requirements, or only to perform certain standard library function calls on them?
Apologies if these two questions sound asinine, I am currently trying to transition my C++ knowledge from a place of having a basic understanding of how to use features to a robust understanding so that I may write good generic code. Whilst I am trying to use (a draft of) the standard to look up behaviour where possible, its verbiage is oft too verbose for me to completely understand what is actually being said.
In an attempt to seek the answer I cooked up a a quick test .cpp
file to try an compile, given below. All uncommented code compiles with MSVC compiler set to C++20. All commented code will not compile, and visa versa all uncommented code will. It seems that what one naively thinks should work does In particular:
- We cannot construct any object without a destructor, though the objects type is valid and can be used for other things (for example as a template parameter!)
- We cannot create an object of
vector
, whereT
has no destructor, even if we don't attempt to create any objectsT
. Presumably because creating the destructor forvector
tries to access a destructor forT
. - We can create an object of type
vector
,T
whereT
has no operator==
, so long as we do not try to use operator==
, which would requireT
to have operator==
.
However, just because my compiler lets me make an object of vector
where T
is not equality-comparable does not mean I have achieved standards compliant behaviour/ all of our behaviour is not undefined - which is what I want I concerned about, especially as at least some of the usual requirements on the container object have been violated.
Code:
...ANSWER
Answered 2021-Dec-30 at 04:32If the members of a container are not destructible, then the container could never do anything except add new elements (or replace existing elements). erase
, resize
and destruction all involve destroying elements. If you had a type T
that was not destructible, and attempted to instantiate a vector
(say), I would expect that it would fail to compile.
As for the duplicate requirements, I suspect that's just something that snuck in when the CppReference folks wrote that page. The container requirements in the standard mention (in the entry for a == b
) that the elements must be equality comparable.
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