Labwindows cvi programming

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Be the first to start one ». About Shahidf Khalid. Shahidf Khalid. When Dana Schwartz started writing about a 19th-century pandemic ravaging Edinburgh in her latest book, Anatomy: A Love Story, she had no idea Read more Two source files: ShowAttributes. H ave you ever noticed that in the user interface editor you can move between panels using Ctrl-shift and the left or right arrow? Well, here's a little piece of code that allows you to do the same thing in your C programs.

In addition it will print or center your panels on request. Note that on Linux the keymaps are a bit different so you may want to verify them. In this small source code, you'll also find functions to handle default keys print, screenshot O K, so there are several predefined popups, like ConfirmPopup or GeneralPopup that you can call, and they will return the button clicked by the user.

I mulled that one over for a while, until a suggestion from Martin J. Saxon: the trick is to call RunUserInterface again Here's another example which allows you to change the format, precision and padding of a numeric control.

Note: you may be thinking about doing the same for a graph properties popup, but this is largely done already if you use legends and enable [Interactive Legend]. And yet another example which allows you to change the format, precision and a few other attributes to a graph axis. And yet another example which allows you to change some cosmetics on a slider popup, including the ramp colors, needle width, etc.

T here are many default events in LabWindows, but some are missing. For instance you can drag and drop files from explorer onto a panel only if you call the EnableDragAndDrop function. Something else that is sometimes necessary is shift-click, ctrl-click and alt-click. The code is below. The thing I haven't been able to figure out yet is how to separate and get the coordinates of mouse-down and mouse-up on a canvas, which is necessary for drawing a box for instance.

Initialize: This function initializes the instrument and sets it to a default configuration. Configuration Functions: Class This class of functions configures the instrument by setting acquisition and system configuration parameters. It also provides functions which allow the user to determine the current status of the instrument. Utility Functions: Class This class of functions provides lower level functions to communicate with the instrument, and change instrument parameters.

This content is not available in your preferred language. Environment shows products that are verified to work for the solution described in this article. This solution might also apply to other similar products or applications. An instrument driver is a set of software routines that control a programmable instrument. Each routine corresponds to a programmatic operation such as configuring, reading from, writing to, and triggering the instrument.

Instrument drivers simplify instrument control and reduce test program development time by eliminating the need to learn the programming protocol for each instrument. If you find one, follow the procedure below to load it into CVI You can load and unload instrument drivers manually using the Instruments Folder in the Library Tree or using the Instrument menu.

Agilent Function Tree Layout For example, if you double-click on the Initialize function, that function panel will open. Performs an identification query on the instrument. Resets the instrument to a known state. Sends initialization commands to the instrument that set any necessary programmatic variables such as Headers Off, Short Command form, and Data Transfer Binary to the state necessary for the operation of the instrument driver.

Returns an Instrument Handle which is used to differentiate between different sessions of this instrument driver. Each time this function is invoked a Unique Session is opened. It is possible to have more than one session open for the same resource.