LabWindows/CVI Idea Exchange

Currently, there is no way to access the historical data on a stripchart.  The only way to manage this data is to maintain a separate buffer and update it whenever you add data to the strip chart, which is inefficient and tedious. Accessing data is possible for graph controls using the data attribute:

GetPlotAttribute (panel, PANEL_GRAPH, plotHandle, ATTR_PLOT_XDATA, &data);

 Something similar should be implemented for the strip chart, either as an attribute in the getTraceAttribute function, or as a standalone function (getTraceData, etc.)

Similiar to LabVIEW, I would like to have a "save as" option to store all files within the prj-file to a new location (maybe also for store a cws, res all mentioned prj-files).

Would make it easier to handle over a CVI-project.

Even after using CVI for many years I still find the DirSelectPopup confusing, because it provides a file selector, displays files, and even allows to select files...

I would prefer an improved/modified function such that the DirSelectPopup only shows directories, does not provide a file selector, etc.... This should make it much more obvious that one is selecting a directory, not a file...

Thanks!

This would make it a bit easier to edit an old project without the issue of upgraded UIRs because it might get loaded by the wrong CVI version and one edits and accidentally saves it before noticing.

Visual Studio installs a helper EXE which launches the right Studio for any SLN.

If MS didn't patent this , it would be a nice feature for CVI (and LabView?), too.

I am feeling that LabWindows/CVI lacks a feature that leads to confusion and to minor lack of productivity. When opening the Project File from Windows Explorer or another manager, CVI will start and open that particular project. However, if an instance of CVI is currently running, it will close the project that’s opened and open up the new project. This doesn’t seem right. Let’s say your’re working on a project and you want to open a reference project or an example from ‚Samples’ in order to find some information. Your project automatically closes and you must open it again. You have to search the project on the disk and wait for it to load each time you want to look for something in another project. But you only want to take a look at that example (or reference project), you don’t want to work on it! A workaround exists: open up an instance of LabWindows/CVI and then open your second project. And you must do that for each supplementary project you want to open, while not losing you project of interest.

The feature I think should be implemented would allow the following behavior: when opening a project, LabWindows/CVI will check to see if that project is opened in one of its running instances. If it is, that particular instance is brought into view. If it isn’t, a new instance of LabWindows/CVI will be started and the project will be opened. That way you reduce waiting times (especially when a big project is involved in this switch) and increase productivity.

Hi,

sometimes it woud be useful to have plot symbols available that are larger than the fixed standard size. Hence I suggest providing a plot attribute ATTR_TRACE_POINT_SIZE where one could set the point size (e.g. in pixels)

Hello,

I would consider it quite convenient having a simple CVI function, similar to GetPanelDisplayBitmap, providing a true screenshot image of a CVI panel.

As discussed here, the CVI function GetPanelDisplayBitmap does not provide a screenshot image of the panel, i.e. the bitmap lacks all OS-specific features (color theme etc.).

For backward compatibility reasons, NI should provide a new function, returning a bitmap that looks the same as if I would have pressed Alt+Prt Sc

Thanks!

Hi,

following the discussion here it turns out that at present there is some ambiguity in using the taskbar button of applications created with CVI: Clicking on the taskbar button gives the visual impression of minimizing all panels of the application, in fact the panels are just hidden, not minimized. As a result, the application will behave differently if you really minimize panels using the _ panel button, or if you hide the panels by clicking on the taskbar. In the latter case the new EVENT_PANEL_MINIMIZE event does not get triggered and the application cannnot know that all panels are hidden (for the user appearing to be minimized). Hence this new event is required to complement this functionality.

When working on laptops the room space in the UIR editor is relatively small compared to the size of actual wide desktop videos. Moreover, starting from CVI 2010 the user interface browser consumes additional room to the right of the editor, thus leaving only a few space to design/review panels.

It would be a good addition the possibility to preview an entire panel on the screen, with the ability to zoom in and out so that one can have an idea of the final aspect the panel will have.

Hello,

• Right now, the Break on»Library Errors function break happens for all library errors. I would like to suggest a more granular setting, i.e. break on file I/O errors, math errors, etc.

• An additional (and most relevant) feature I suggest is the option to allow to temporarily exclude certain errors; let's say I have a loop doing some calculations and these calculations result in an ERANGE error, then it would be useful to get notified by the debugger, but only once for this loop, not 500 times... Hence after a break on library error I would like to have the (right click) option 'exclude further breaks of this function'. This should be valid for the current execution and be automatically reset when the program is restarted.

• Also, the menu command should provide the possibility to override all SetBreakOnLibraryError functions.

Many thanks!

Hello,

this is a minor issue but still it can be very inconvenient... Very inconvenient because it almost always happens to me that if editing a menu bar I inadvertently mess it up. This is because if one is inserting a new item or child item, after pressing the 'Insert Item' or 'Insert Child Item' button the active control is set to 'Constant name', see below.

But I am never editing the 'Constant name' but always the 'Item name' (and callback function, modifier key...). Hence I almost always start typing the item name until I realize that I was editing the wrong field.

So my suggestion is to consider changing the active control after one of the insert buttons has been pressed to 'Item name'.

The active configuration (Debug, Release, custom ones, ...) is shown in the bottom-right corner of the status bar (see attached config01.jpg).

I think that it would be better if this would be a menu ring that can be used to change the active configuration, without having to select Build >> Configuration >> xxxx (see config02.jpg)