VI class/Control Value.Get All method: Difference between revisions
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[[Category:VI Server Method]] | |||
Latest revision as of 14:19, 7 May 2020
| VI Server Method Information | |
|---|---|
| Method ID | 41D |
| Scope | Basic Development Environment |
| Data Name | Ctrl Val.Get All |
| Short Name* | Ctrl Val.Get All |
| Long Name* | Control Value:Get All |
| * Displayed here in English. Short and Long names appear in the language of the LabVIEW IDE. | |
| Owning Class ID | 2 |
| Owning Class Name | VI Class |
| Return Data Type | Common Cluster Array data type |
| Invoke Node |
|
| Available in Real-Time Operating System | Yes |
| Available in Run-Time Engine | Yes (Read/Write) |
| Available with control VIs | Yes |
| Available with global VIs | Yes |
| Available with polymorphic VIs | No |
| Available with strict type definitions | No |
| Loads the block diagram into memory | No |
| Loads the front panel into memory | No |
| Must wait until user interface is idle | No |
| Need to authenticate before use | No |
| Remote access allowed | Yes |
| Settable when the VI is running | Yes |
Gets the values of all controls or indicators in a VI as variant data. This method returns an array of clusters that contains control and indicator names and their values as variant data. Use the Variant to Data function to convert the data to another LabVIEW data type.
| Note This method requires the VI to have a front panel. If you are using the Application Builder, make sure you do not remove the front panel. |
For optimization purposes, LabVIEW does not keep track of data values on controls and indicators until LabVIEW determines you want them, that is, until you call this method or display the front panel. When you display the front panel, LabVIEW begins keeping track of the values.
The first time you call this method on a VI whose front panel is not open, this method returns the default values of the control or indicator rather than the actual values. Thereafter, it returns the actual value.
Parameters
Uses
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Specific use cases for this method. |
History
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History information is needed. What changes have occurred over previous versions? |
| Version | Change(s) |
|---|---|
| More info to come. |
See Also
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Add links to internal wiki pages that would also help. |
External Links
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