VI class
| VI Server Class Information | |
|---|---|
| Return to VI Server Class Hierarchy | |
| Class Name | VI class |
| Class ID | 2 |
| Scope | Basic Development Environment |
| Class Inheritance |
This class is a top-level class. |
| Class Children | |
 |
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The VI class is a class in the VI Server Class Hierarchy, (see also VI Server).
Properties
Show/Hide VI Properties Table
| Legend | |
|---|---|
| R/W | Readable/Writable Permissions |
| RTE | Available in the Run-Time Engine |
| Basic Development Environment | |
| VI Scripting | |
| Private | |
| Deprecated | |
| Property ID | Long Name (English) | Description | R/W | RTE |
|---|---|---|---|---|
| 1F4 | VI Name | Name of the VI file. If a LabVIEW project library owns the VI, the property returns the qualified name of the VI, which includes the project library filename. | Read/Write | Yes (Read Only) |
| 1F5 | VI Path | Path to the VI file. | Read Only | Yes (Read Only) |
| 1F6 | VI Description | Description of the VI that appears in the Context Help window when you move the cursor over the VI icon and in VI documentation you generate. | Read/Write | Yes (Read Only) |
| 1F7 | History:Entire Text | Returns all the text that was added to the VI revision history. | Read Only | No |
| 1F9 | Front Panel Window:Title Bar Visible | Indicates whether to display a title bar on the front panel while the VI runs. | Read/Write | Yes |
| 1FA | Front Panel Window:Closeable | Indicates whether the close button in the title bar is disabled and the Close item in the File menu is disabled. | Read/Write | Yes |
| 1FB | Front Panel Window:OldResizable | Read/Write | Yes | |
| 1FC | Front Panel Window:Allow Runtime PopUp | Indicates whether to display shortcut menus for front panel objects while the VI runs. If you do not display default run-time shortcut menus, you can continue to include customized shortcut menus. | Read/Write | Yes |
| 1FD | Front Panel Window:Highlight Return Button | Indicates whether to highlight Boolean controls that have a shortcut key of <Enter>. | Read/Write | Yes |
| 1FE | Front Panel Window:Size to Screen (Deprecated) | Read/Write | Yes | |
| 1FF | Front Panel Window:Auto Center (Deprecated) | Read/Write | Yes | |
| 200 | Front Panel Window:Show Scroll Bars | Read/Write | Yes | |
| 201 | Front Panel Window:Show Menu Bar | Indicates whether to display the menu bar on the front panel while the VI runs. | Read/Write | Yes |
| 202 | Tool Bar:Visible | Indicates whether to display the toolbar while the VI runs. | Read/Write | Yes |
| 203 | Tool Bar:Show Run Button | Indicates whether to display the Run button on the toolbar while the VI runs. | Read/Write | Yes |
| 204 | Tool Bar:Show Free Run Button | Indicates whether to display the Run Continuously button on the toolbar while the VI runs. | Read/Write | Yes |
| 205 | Tool Bar:Show Abort Button | Indicates whether to display the Abort Execution button on the toolbar while the VI runs. | Read/Write | Yes |
| 206 | Execution:Allow Debugging | If TRUE, you can use debugging tools on the VI. For example, you can set breakpoints, create probes, enable execution highlighting, and single-step through execution. Set this property to FALSE to disable use of debugging tools, reduce memory requirements, and to improve performance slightly for the VI. | Read/Write | Yes (Read Only) |
| 208 | Front Panel Window:Is Dialog | Read/Write | Yes | |
| 209 | Execution:Show Front Panel On Load | Indicates whether to show the front panel when the VI is loaded. | Read/Write | Yes (Read Only) |
| 20A | Execution:Show Front Panel On Call | Indicates whether to show the front panel when the VI is called. | Read/Write | Yes |
| 20B | Execution:Close After Call | Indicates whether to close the front panel after the VI runs. | Read/Write | Yes |
| 20C | Execution:Run When Opened | Indicates whether to run the VI when it opens. | Read/Write | Yes (Read Only) |
| 20D | Execution:Is Reentrant | Indicates whether a VI can be reentrant. | Read/Write | Yes (Read Only) |
| 20E | Execution:Priority | Indicates the priority of the VI when it runs in parallel with other tasks. | Read/Write | Yes (Read Only) |
| 20F | History:Use Defaults | Indicates whether to use the global default history or to use the values entered in other history properties. | Read/Write | No |
| 210 | History:Always Add Comments At Save | Indicates whether to add a comment to the VI revision history every time the VI is saved. | Read/Write | No |
| 211 | History:Prompt for Comments At Close | Indicates whether to prompt for a VI revision history comment when the VI closes. | Read/Write | No |
| 212 | History:Prompt for Comments At Save | Indicates whether to prompt for a VI revision history comment when the VI is saved. | Read/Write | No |
| 213 | History:Record Application Comments | Indicates whether to add comments to the VI revision history when certain events occur, such as conversion to a new version of LabVIEW, subVI changes, and changes to the name or path of the VI. | Read/Write | No |
| 214 | Help:Document Tag | Index keyword or HTML filename for a topic in the compiled help file to which the VI is linked. | Read/Write | Yes |
| 215 | Help:Document Path | Path or symbolic path to an HTML file (.htm or .html) or compiled help file (.chm or .hlp) to which the VI is linked. | Read/Write | Yes |
| 216 | Front Panel Window:Open | Read/Write | Yes | |
| 217 | Front Panel Window:Is Frontmost | Writing TRUE to this value brings the front panel to the front. This property applies only in the application instance of the calling VI. Writing FALSE to this value has no effect. If you read this property, it indicates whether the front panel window is the front window (ignoring floating windows). | Read/Write | Yes |
| 218 | Front Panel Window:Window Bounds | The four elements in the cluster are the top, left, bottom, and right values of the front panel window, which includes the interior region, scroll bars, title bar, menu bar, and toolbar. They are in global screen coordinates, that is, the numbers refer to coordinates within a computer monitor's screen (rather than an open window). | Read/Write | Yes |
| 219 | Modifications:VI Modifications Bitset Old | Read Only | Yes | |
| 21A | Modifications:Front Panel Mods Bitset | Indicates whether changes were made to the front panel since the VI was saved. If the value is zero, no changes where made. If the value is nonzero, changes were made. | Read Only | Yes (Read Only) |
| 21B | Modifications:Block Diagram Mods Bitset | Indicates whether changes were made to the block diagram since the VI was saved or opened, depending on which was last. If the value is zero, no changes were made. If the value is nonzero, changes were made. | Read Only | No |
| 21C | Metrics:Code Size | Amount of memory used for VI code in bytes. | Read Only | Yes (Read Only) |
| 21D | Metrics:Total Data Size | Amount of memory allocated for data in bytes. | Read Only | Yes (Read Only) |
| 21E | Metrics:Size of Front Panel | Size of the front panel in bytes. | Read Only | Yes (Read Only) |
| 21F | Metrics:Size of Block Diagram | Size of the block diagram in bytes. | Read Only | Yes (Read Only) |
| 220 | Callers' Names | Returns a list of all the loaded VIs that call the referenced VI. | Read Only | Yes (Read Only) |
| 221 | Callees' Names | Read Only | Yes | |
| 225 | Auto Logging:Log File Path | Path of the datalog file in which front panel data and a time stamp are written. | Read/Write | Yes |
| 226 | Auto Logging:Log at Finish | Indicates whether to write front panel values to a datalog file after the VI runs. | Read/Write | Yes |
| 227 | Auto Logging:Print at Finish | Indicates whether to print the front panel after the VI runs. | Read/Write | Yes |
| 228 | Front Panel Window:Origin | Read/Write | Yes | |
| 229 | Front Panel Window:Title | String that appears in the title bar. This string does not have to match the VI filename. | Read/Write | Yes |
| 22A | Connector Pane:Set | Sets the connector pane of the VI to match the connector pane of the VI reference input. | Write Only | No |
| 22B | Execution:Suspend On Call | Indicates whether LabVIEW suspends the execution of the VI when calling it as a subVI. Use this property carefully with reentrant VIs. | Read/Write | Yes (Read Only) |
| 22C | Front Panel Window:Panel Bounds | The four elements in the cluster are the top, left, bottom, and right values of the interior portion of the front panel, not including the scroll bars, title bar, menu bar, and toolbar. The cluster elements are in global screen coordinates, which are the numbers that refer to coordinates within a computer monitor's screen (rather than an open window). | Read/Write | Yes |
| 22D | Execution:State | Indicates the execution state of the VI. | Read Only | Yes (Read Only) |
| 22E | Edit Mode On Open | If TRUE, the VI opens in edit mode. If FALSE, the VI opens in run mode, and the title bar, menu bar, and toolbar do not appear. | Read/Write | Yes |
| 22F | Execution:Preferred Exec System | Indicates the execution system in which the VI runs. | Read/Write | Yes (Read Only) |
| 230 | Modifications:User Changes | Read Only | No | |
| 231 | Front Panel Window:Custom Title | Indicates whether the VI has a custom title string. Write FALSE to remove the custom title string. | Read/Write | Yes |
| 232 | VI Type | Indicates the type of VI. | Read Only | Yes (Read Only) |
| 234 | History:Revision Number | Current revision number of the VI. | Read/Write | No |
| 235 | Connector Pane:Data (Deprecated) | Read Only | Yes | |
| 236 | Metrics:Advanced | Read Only | No | |
| 237 | Block Diagram Window:Open | Opens or closes the block diagram window. | Read/Write | No |
| 238 | Block Diagram Window:Window Bounds | Gets or sets the bounds for a block diagram window. | Read/Write | No |
| 239 | Connector Pane:Old Type Descriptor | Read Only | Yes | |
| 23A | Tool Kit Attr | Read/Write | No | |
| 23B | Front Panel RefNum TD | Read Only | No | |
| 23C | Block Diagram | Returns a reference to the block diagram of the VI. This property is not available in stand-alone applications. | Read Only | No |
| 23D | Front Panel | Reference to the front panel of a VI. | Read Only | Yes (Read Only) |
| 23E | Connector Pane:Reference | Returns a reference to the connector pane of the VI. | Read Only | Yes (Read Only) |
| 23F | Front Panel Window:Keep Window Proportions | Indicates whether the front panel window adjusts its size in proportion with a change in monitor resolution. The window changes size so it covers the same percentage of the screen that it covered at its original resolution. | Read/Write | Yes |
| 240 | Modifications:VI Signatures | Read Only | Yes | |
| 241 | Is Instance | Returns whether or not the VI is an Express VI instance. | Read/Write | No |
| 242 | Automatic Error Handling | If TRUE, enables automatic error handling for a VI. | Read/Write | No |
| 243 | Block Diagram Window:Origin | Gets or sets the vertical and horizontal coordinates in the upper left-hand corner of the block diagram. | Read/Write | No |
| 244 | Run-Time Menu Path | When read, this property returns the run-time menu path of the VI. When written, this property updates the run-time menu path of the VI. If the VI is running when you write this property, it updates the menu with data from the new path. | Read/Write | Yes |
| 245 | Front Panel Window:Is Floating | Read/Write | Yes | |
| 246 | RunVILocal | Read/Write | Yes | |
| 247 | Front Panel Window:Minimizable | Indicates whether the user can minimize the front panel window while the VI runs. | Read/Write | Yes |
| 248 | Front Panel Window:Resizable | Indicates whether the user can resize the front panel window while the VI runs. | Read/Write | Yes |
| 249 | Expand When Dropped As SubVI | Expands to show terminals when dropped as a subVI. | Read/Write | No |
| 24A | Printing:Page Orientation | Gets or sets the page orientation to use when printing the VI. | Read/Write | Yes |
| 24B | Printing:Page Headers? | If TRUE, LabVIEW prints headers for the VI. Use the Printing:Header Content properties in this class to customize the contents of the headers. | Read/Write | Yes |
| 24C | Printing:Front Panel Scaling? | If TRUE, LabVIEW scales the front panel to fit on the printed page. | Read/Write | Yes |
| 24D | Printing:Margins | Gets or sets the page margins to use when printing the VI in inches or centimeters. | Read/Write | Yes |
| 24E | Printing:Header Content:VI Name? | If TRUE, LabVIEW includes the VI name in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 250 | Printing:Header Content:Date Printed? | If TRUE, LabVIEW includes the date printed in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 251 | Printing:Header Content:Modify Date? | If TRUE, LabVIEW includes the last modified date in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 252 | Printing:Header Content:Page Number? | If TRUE, LabVIEW includes the page number in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 253 | Printing:Header Content:VI Icon? | If TRUE, LabVIEW includes the VI icon in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 254 | Printing:Header Content:VI Path? | If TRUE, LabVIEW includes the VI path in the headers for the VI. Use the Printing:Page Headers? property to set whether LabVIEW prints the headers for the VI. | Read/Write | Yes |
| 255 | Purgative | Read/Write | Yes | |
| 256 | Control VI Type | Specifies whether a control VI is a control, a typedef, or a strict typedef. This property is valid for control VIs only. | Read/Write | Yes (Read Only) |
| 257 | VI Linker Errors | Read Only | Yes | |
| 258 | Hide Instance VI Caption On Drop | Read/Write | No | |
| 259 | Front Panel Window:Behavior | Sets the behavior of the front panel window. Valid values include 0 (Invalid), 1 (Default), 2 (Floating), 3 (Floating/Auto-Hide), and 4 (Modal). | Read/Write | Yes |
| 260 | Front Panel Window:State | Current state of the front panel window. | Read/Write | Yes |
| 262 | Printing:Block Diagram Scaling? | If TRUE, LabVIEW scales the block diagram to fit on the printed page. | Read/Write | Yes |
| 263 | Suppress Instance VI Halo | Read/Write | Yes | |
| 264 | Is System VI | Read/Write | Yes | |
| 265 | Front Panel Window:Minimum Size | Minimum size of the front panel window in pixels. If Front Panel Window:Resizable is TRUE, the user cannot resize the front panel smaller than the width and height you wire to this property. | Read/Write | Yes |
| 266 | Connector Pane:Checksum v1 (Deprecated) | Read Only | Yes | |
| 267 | Front Panel Window:OS Window | Read Only | Yes | |
| 268 | Block Diagram Window:OS Window | Read Only | No | |
| 269 | Modifications:VI User Code GUID | Read Only | Yes | |
| 26A | Is Probe | Returns TRUE if the VI is running as a probe and the probe VI is open. | Read Only | No |
| 26B | Suppress Data Manager | Read/Write | Yes | |
| 26C | Suppress Transact Info | Read/Write | Yes | |
| 26D | Execution:Retain Wire Values | Read/Write | No | |
| 26E | Is XNode VI | Read/Write | Yes | |
| 26F | Owning Application | Returns a reference to the application that owns the VI. Be sure and close this reference afterward. | Read Only | Yes (Read Only) |
| 271 | Front Panel Window:Window | Read Only | Yes | |
| 272 | Block Diagram Window:Window | Read Only | No | |
| 273 | Front Panel Window:Transparency | Sets the window transparency level of the VI. The level of transparency is a percentage where 0 is opaque and 100 is invisible. This property returns an error if you specify a value outside the range of 0 to 100. If you set the transparency level to 100, the VI becomes invisible and uncontrollable from the front panel. You must stop the VI on the block diagram for the front panel of the VI to become visible. You must set the Front Panel Window:Run VI Transparently property to TRUE for this property to have any effect. The default value for the Front Panel Window:Run VI Transparently property is FALSE, in which changing this property has no effect. | Read/Write | Yes |
| 274 | Front Panel Window:Run VI Transparently | Sets the VI to use a semi-transparent window style when running. Set the level of transparency using the Front Panel Window:Transparency property. | Read/Write | Yes |
| 275 | Front Panel Window:Monitor | The monitor on which the front panel window appears, if you have multiple monitors. (Windows) The value 0 is the primary monitor. (OS X) The value 1 is the primary monitor. | Read/Write | Yes |
| 276 | Library | Returns the name of the LabVIEW project library, XControl, or LabVIEW class that owns the VI. If no library, XControl, or class owns the VI, the property returns Not a Refnum. | Read Only | No |
| 277 | Context:Has Edits In Another Context | Read Only | Yes | |
| 278 | Context:Has Edits In This Context | Read Only | Yes | |
| 279 | Context:Is Reserved In Other Context | Read Only | Yes | |
| 27A | Context:Is Reserved In This Context | Read Only | Yes | |
| 27B | Help:Examples Exist | Read/Write | No | |
| 27C | BD Master Wizard | Read Only | No | |
| 27D | Connector Pane:DataType | Returns the data type of the connector pane as variant data. Connector panes for VIs have a VI data type. Connector panes for polymorphic VIs have a PolyVI data type. Connector panes for custom controls, global variables, and type definitions have the data type of the control. | Read Only | Yes (Read Only) |
| 27E | Overload Info | Read/Write | No | |
| 27F | Connector Pane:Checksum v2 (Deprecated) | Read Only | Yes | |
| 280 | Callees' Paths | Read Only | Yes | |
| 281 | Callers' Paths | Read Only | Yes | |
| 282 | VI Compile Time | Read Only | No | |
| 283 | Auto Preallocate Arrays and Strings | Get or set the Autopreallocate arrays and strings setting on VIs. This is used by the FPGA module to optimize array and string operations by forcing LabVIEW to preallocate memory at compile time rather than dynamically allocating memory at run time. | Read/Write | Yes |
| 284 | No Clone If Instance VI | Read/Write | Yes | |
| 285 | VI Clone Name | Name of the clone of a reentrant VI. Returns an error if the VI is not a clone. | Read Only | Yes |
| 286 | Is Clone VI | Returns TRUE if the VI is a clone of a reentrant VI. | Read Only | Yes |
| 287 | Suppress Type Prop | Read/Write | No | |
| 288 | Execution:Reentrancy Type | Indicates the type of reentrancy LabVIEW uses for a reentrant VI. | Read/Write | Yes (Read Only) |
| 289 | Statechart:Supress Parse | Read/Write | No | |
| 28A | Statechart:Is Sub Panel Editable | Read/Write | Yes | |
| 28B | C Code Generation:Generate Guard Code | Read/Write | Yes | |
| 28C | C Code Generation:Generate Serial Only | Read/Write | Yes | |
| 28D | C Code Generation:Generate Integer Only | Read/Write | Yes | |
| 28E | C Code Generation:Generate C Function Calls | Read/Write | Yes | |
| 28F | C Code Generation:Use Stack Variables | Read/Write | Yes | |
| 290 | Item ID | Read/Write | Yes | |
| 291 | Metrics:Front Panel Loaded | Specifies whether the front panel of the VI is in memory. The front panel can be in memory even if the window is not open. | Read Only | Yes |
| 292 | Metrics:Block Diagram Loaded | Specifies whether the block diagram of the VI is in memory. The block diagram can be in memory even if the window is not open. | Read Only | Yes |
| 293 | Library:Version | Read Only | Yes | |
| 294 | C Code Generation:Expression Folding | Read/Write | Yes | |
| 295 | Library:Private | Read Only | No | |
| 296 | Is Skinned | Read/Write | Yes | |
| 297 | Block Diagram Window:State | Current state of the block diagram window. | Read Only | Yes |
| 298 | Modifications:VI Modifications Bitset | Indicates if changes were made to the VI since the VI was saved. If the value is zero, no changes were made. If the value is nonzero, changes were made. | Read Only | Yes (Read Only) |
| 299 | Ladder VI Needs Scripting | Read/Write | Yes | |
| 29B | C Code Generation:Inline SubVI | Read/Write | Yes | |
| 29C | Do Not Show Save Changes Dialog | Read/Write | No | |
| 29F | Front Panel Window:Native Window | Read Only | Yes | |
| 2A0 | Block Diagram Window:Native Window | Read Only | No | |
| 2A1 | Front Panel Window:Window Interface | Read Only | Yes | |
| 2A2 | Block Diagram Window:Window Interface | Read Only | No | |
| 2A3 | Is Generic | Read Only | Yes | |
| 2A4 | Is VI Paused? | Specifies whether the execution of the VI is paused. A TRUE value indicates that the VI is paused. A FALSE value indicates that the VI is not paused or that it is not running. | Read Only | No |
| 2A5 | Number of Non-Proxy Callers | Read Only | Yes | |
| 2A6 | Compiler:Generated Code Profiling Settings | Read/Write | No | |
| 2A7 | Compiler:Generated Code Profiling Result | Read Only | No | |
| 2A8 | Contains Compiled Code | Sets or returns whether the VI includes compiled code. | Read/Write | Yes (Read Only) |
| 2A9 | Is In Packed Library | Returns TRUE if a packed project library contains the VI. | Read Only | Yes |
| 2AA | Execution:Inline SubVI | Specifies whether to inline the subVI into its calling VIs. | Read/Write | No |
| 2AB | Execution:Inline Is Allowed | Returns TRUE if you can inline this subVI into its calling VIs. | Read Only | No |
| 2AC | Execution:SSE Runtime Optimization | Read/Write | No | |
| 2AD | Has MathScript Nodes | Read Only | No | |
| 2AE | Execution:Inline SubVI If Possible | Read/Write | No | |
| 2AF | Execution:Compiled With SSE | Read Only | Yes | |
| 2B0 | Terminal Bounds[] | Returns an array of terminal bounds for the connector pane of the referenced VI. The bounds for each terminal are represented as a cluster of integers that indicate the position of each edge of the terminal rectangle. | Read Only | Yes |
| 2B1 | Tagged And Not Edited | Read/Write | No | |
| 2B2 | Connector Pane:Checksum Ignore Dynamic Dispatch v1 (Deprecated) | Read Only | Yes | |
| 2B3 | Compiled:Code Complexity | Returns the complexity of the referenced VI in relation to the Compiler optimizations slider on the Environment page of the Options dialog box. By comparing these two values, you can determine whether LabVIEW prioritizes editor responsiveness or execution speed when compiling this VI. | Read Only | Yes |
| 2B4 | Compiled:Last Compiled With | Returns the level of compiler optimizations that LabVIEW last used to compile this VI. The value corresponds to whether the complexity of the VI was greater or less than the threshold at which LabVIEW begins limiting compiler optimizations to prioritize editor responsiveness. | Read Only | Yes |
| 2B5 | Inline Callees | Read Only | Yes | |
| 2B6 | Library:Version | Returns the version of the library that contains the VI you specify. | Read Only | Yes |
| 2B7 | Metrics:Number of clones | Read Only | Yes | |
| 2B8 | Execution:Inline Enum | Read/Write | No | |
| 2B9 | Execution:Did Compiler Or User Approve Inlining | Read Only | No | |
| 2BA | Help:Document Web URL | URL for the web-based help topic to link to a VI from the Detailed help link in the Context Help window. | Read/Write | Yes |
| 2BB | Help:Use Web URL | Indicates whether to link to a web-based help file from the Detailed help link in the Context Help window for a VI. | Read/Write | Yes |
| 2BC | Execution:Shrink Large Buffers | Read/Write | Yes | |
| 2BD | Is Running Interactively | Read Only | Yes | |
| 2BE | Execution:Shrink Large Buffer Threshold | Read/Write | Yes | |
| 2BF | Execution highlighting? | Read/Write | No | |
| 2C1 | Did Recompile InThis Version | Read Only | Yes | |
| 2C2 | Saved Version | Read Only | Yes | |
| 2C3 | Front Panel Window:Alignment Grid Size | Read/Write | No | |
| 2C4 | Block Diagram Window:Alignment Grid Size | Read/Write | No | |
| 2C5 | Connector Pane:Checksum v3 | Read Only | Yes | |
| 2C6 | Connector Pane:Checksum Ignore Dynamic Dispatch v2 | Read Only | Yes |
Methods
Show/Hide VI Properties Table
| Legend | |
|---|---|
| RTE | Available in the Run-Time Engine |
| Basic Development Environment | |
| VI Scripting | |
| Private | |
| Deprecated | |
| Method ID | Long Name (English) | Description | RTE |
|---|---|---|---|
| 3E8 | VI Strings:Export | Exports the following strings about VI and front panel objects to a tagged text file: VI name and description, object caption labels, object free labels, default data (string, table, path, and array default data), private data (listbox item names, table row and column headers, graph plot names, graph cursor names, graph annotation names, and tab control page captions), and polymorphic VI data (instance names in the polymorphic VI and selector shortcut menus). | No |
| 3E9 | VI Strings:Import | Imports the following strings about VI and front panel objects from a tagged text file: VI name and description, object caption labels, object free labels, default data (string, table, path, and array default data), private data (listbox item names, table row and column headers, graph plot names, graph cursor names, graph annotation names, and tab control page captions), and polymorphic VI data (instance names in the polymorphic VI and selector shortcut menus). | Yes (Read/Write) |
| 3EA | Save:Instrument | Saves a VI that is not currently running and synchronizes the VI with the edited version in other application instances before saving. | No |
| 3EB | Run VI | Starts the VI execution, similar to the Run button. This method is different than calling a VI because it uses the current values of all front panel controls for execution rather than using data passed in through parameters. This method also ignores the Execution:Show Front Panel On Call property of a VI and the Execution:Close After Call property. | Yes (Read/Write) |
| 3EC | Abort VI | Aborts the execution of a top-level VI. | Yes (Read/Write) |
| 3ED | Print:VI To Printer | Prints the VI information to a printer. | Yes (Read/Write) |
| 3EE | Print:VI To HTML | Saves the VI information to an HTML file and saves the graphics in external files. You can use the Open URL in Default Browser VI to display the HTML file in the default Web browser. | No |
| 3EF | Print:VI To RTF | Saves the VI information to an RTF file. | No |
| 3F0 | Print:VI To Text | Saves the VI information to a text file. You cannot save the icon, connector pane, front panel, block diagram, subVI icons, and VI hierarchy to text. | No |
| 3F1 | Control Value:Set [Flattened] (Deprecated) | Yes | |
| 3F2 | Control Value:Get [Flattened] (Deprecated) | Yes | |
| 3F3 | Default Values:Make Current Default | Changes the defaults of all controls on the front panel to be the current values. This method is available only in edit mode. | No |
| 3F4 | Default Values:Reinitialize All To Default | Changes the current values of all controls on the front panel to their defaults. | Yes (Read/Write) |
| 3F8 | Front Panel:Old Get Image | Yes | |
| 3FA | Revert VI | Discards changes and reloads a VI from disk. | No |
| 3FB | Print:Panel To Printer | Prints just the front panel to the current printer. You cannot use this method to print a block diagram, list of controls, or polymorphic VI front panel. | Yes (Read/Write) |
| 3FC | Control Value:Get All [Flattened] (Deprecated) | Yes | |
| 3FD | Lock State:Get | Returns the lock state of the VI and indicates whether the password for the VI is in the password cache. | Yes (Read/Write) |
| 3FE | Lock State:Set | Sets the lock state of a VI. If interactive is FALSE (default), you can use password to either unlock a password-protected VI or set the password of an unprotected VI. If interactive is TRUE, LabVIEW ignores password and displays a dialog box that prompts you to change the lock state. | No |
| 3FF | Save:Instrument (Private) | No | |
| 400 | Save:For Previous | Saves a copy of the VI that is readable by LabVIEW version 8.0 and later. If you save a password-protected VI for a previous LabVIEW version, you must enter the password. You can enter the password programmatically as an input on the Open VI Reference function. | No |
| 401 | Empty | Empties the front panel and block diagram of the VI. | No |
| 402 | Transaction:Begin Undo | Begins an undo transaction on a VI. | No |
| 403 | Transaction:End Undo | Ends an undo transaction on a VI. | No |
| 404 | Set Front Panel Scaling Mode | Yes | |
| 405 | Get Front Panel Scaling Mode | Yes | |
| 407 | VI Icon:Set From File | Sets the image of a VI icon from a file. LabVIEW creates a user layer called VI Icon for the image and deletes any other existing icon information from the Icon Editor dialog box. | No |
| 408 | Front Panel:Open In Window | Yes | |
| 409 | Tag:Remove Tags | Yes | |
| 40A | Tag:Set Tags | Yes | |
| 40B | Tag:Set Persistence | Yes | |
| 40C | Tag:Remove All Tags | Yes | |
| 40D | Tag:Set Tag | Yes | |
| 40E | Tag:Get Tag | Yes | |
| 40F | Tag:Remove Tag | Yes | |
| 410 | Block Diagram:Remove Bad Wires | Removes all the broken wires on the block diagram of the VI. | No |
| 411 | Fake Exec State | Yes | |
| 412 | Generate VHDL | No | |
| 413 | Save:Run-Time Menu | Saves the run-time menu to a file specified by Path. This method works only when the VI is running. It saves only menu items with valid tags. | No |
| 414 | Disconnect Polys And Typedefs | No | |
| 415 | Print:Panel To PostScript | Prints the panel of the VI to the specified PostScript file. | Yes (Read/Write) |
| 416 | Export Interface (Deprecated) | Yes | |
| 417 | Create Constant or Control | Yes | |
| 418 | VI Icon:Save To File | Saves an image of the VI icon to a file. | No |
| 419 | Clear History | Clears the revision history of the referenced VI. | No |
| 41A | Save:To Buffer | Yes | |
| 41B | Control Value:Set | Sets the value of a named control or indicator of the variant. You can wire a value of any data type to this method. You do not have to use the To Variant function to convert the data to a variant data type. | Yes (Read/Write) |
| 41C | Control Value:Get | Gets the value of a named control or indicator as variant data. Use the Variant to Data function to convert the data to another LabVIEW data type. | Yes (Read/Write) |
| 41D | Control Value:Get All | 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. | Yes (Read/Write) |
| 41E | Replicate Conpane (Old Type Desc) | Yes | |
| 41F | Save:Target Instrument | No | |
| 420 | Block Diagram:Open In Window | Yes | |
| 421 | VI Icon:Get As Image Data | Returns the VI icon as a cluster of image data so you can draw it as a picture using the Draw Flattened Pixmap VI or save the image to a file using the Graphics Formats VIs. | Yes (Read/Write) |
| 422 | VI Icon:Set From Image Data | Sets a VI icon from image data you specify. LabVIEW creates a user layer called VI Icon for the image and deletes any other existing icon information from the Icon Editor dialog box. | No |
| 423 | Front Panel:Get Image | Returns an image of the front panel as a flattened pixmap. Use the Front Panel:Get Image Scaled method to return an image of the front panel and scale it proportionally according to the maximum width and height you wire to the method. | Yes (Read/Write) |
| 424 | Front Panel:Old Open | Yes | |
| 425 | Front Panel:Close | Closes the front panel window. | Yes (Read/Write) |
| 426 | Front Panel:Get Image Scaled | Returns an image of the front panel and scales it proportionally according to the maximum width and height you wire to the method. This method is similar to the Front Panel:Get Image method. | Yes (Read/Write) |
| 427 | VI Hierarchy:Get Signature | Yes | |
| 428 | Transaction:Undo | Undoes the last operation. This method is similar to selecting Edit»Undo. | No |
| 429 | Transaction:Redo | Redoes the last operation. This is similar to selecting Edit»Redo. | No |
| 42A | Transaction:Fail | Fails the current transaction and deletes the undo information for the transaction. | No |
| 42B | VI Strings:Export Private | No | |
| 42C | Block Diagram:Get Image Scaled | Returns an image of the block diagram and scales it proportionally according to the maximum width and height you wire to the method. For example, if the image of the block diagram is 200 by 200 pixels and you wire a value of 50 to maximum width and a value of 100 to maximum height, this method returns an image that is 50 by 50 pixels. If you do not wire a value to maximum width or maximum height, the image retains its actual size. | No |
| 42D | Get Conpane Image | Returns the connector pane image, as it appears in the Context Help window, as a cluster of image data so you can draw it as a picture using the Draw Flattened Pixmap VI or save the image to a file using the Graphics Formats VIs. | Yes (Read/Write) |
| 42E | Remote Panel:Lock Control | Returns control of the front panel to the server and queues any requests from clients to control the front panel. LabVIEW ignores this method if the front panel is already locked. | Yes (Read/Write) |
| 42F | Remote Panel:Unlock Control | If the front panel is locked, this method grants control to the next client in the queue. If no clients are in the queue, the method unlocks the front panel. LabVIEW ignores this method if the front panel is already unlocked. | Yes (Read/Write) |
| 430 | Remote Panel:Client Connections | Returns an array of clusters containing connection information about the clients viewing or controlling the VI. | Yes (Read/Write) |
| 431 | Remote Panel:Close Connection To Client | Closes a remote front panel connection to a client. | Yes (Read/Write) |
| 432 | User Edits:Allow | Yes | |
| 433 | User Edits:Block | Yes | |
| 434 | Front Panel:Set Close If Lonely | Yes | |
| 435 | VI Hierarchy:Get User GUID | Yes | |
| 436 | Generate C Code | Yes | |
| 437 | Cause Type Propagation | Yes | |
| 438 | Front Panel:Open | Opens the front panel window. If the front panel is already open, this method changes the state of the front panel window to the state you wire to this method. | Yes (Read/Write) |
| 439 | Block Diagram:Set Mod | No | |
| 43A | Front Panel:Set Mod | No | |
| 43B | Adapt Nodes Private | No | |
| 43C | Adapt Nodes | Allows LabVIEW to replace overloaded nodes with more appropriate implementations. For example, if you script an Add function and wire a Matrix control to it, LabVIEW breaks the wire. If you call Adapt Nodes, the Add function might be replaced with a Matrix Add VI. Operator overloading will not occur during scripting. You must call this method for Overloading to happen. | No |
| 43E | Synchronize In All Contexts | Yes | |
| 43F | Enter Text | Yes | |
| 440 | Generate C Code Variant | Yes | |
| 441 | Front Panel:Center | Specifies whether to automatically center the front panel window on the computer screen. | Yes (Read/Write) |
| 442 | Set Is Instance (Deprecated) | No | |
| 443 | Create from Reference | Creates a constant or control using a constant or control reference as a template. | No |
| 444 | Create from Data Type (Deprecated) | Creates a control or constant of the data type you specify. LabVIEW always creates a control initially, even if you configure Style to create a constant or indicator. To change the type of the new object, use the Indicator property. | No |
| 445 | Front Panel:Run-Time Position:Get Position | Returns the default position of the front panel window at run-time. | Yes (Read/Write) |
| 446 | Front Panel:Run-Time Position:Unchanged | Configures the VI to maintain the position of its front panel window when the VI runs. | Yes (Read/Write) |
| 447 | Front Panel:Run-Time Position:Centered | Configures the referenced VI to center its front panel every time the VI runs. If the VI is running when you call this method, the change does not take effect until the next time the VI runs. | Yes (Read/Write) |
| 448 | Front Panel:Run-Time Position:Maximized | Configures a VI to maximize its front panel every time the VI runs. If the VI is running when you call this method, the change does not take effect until the next time the VI runs. | Yes (Read/Write) |
| 449 | Front Panel:Run-Time Position:Minimized | Sets a VI to minimize its front panel every time the VI runs. If the VI is running when you call this method, the change does not take effect until the next time the VI runs. | Yes (Read/Write) |
| 44A | Front Panel:Run-Time Position:Custom | Configures the referenced VI to open its front panel in a custom position every time the VI runs. If the VI is running when you call this method, the change does not take effect until the next time the VI runs. | Yes (Read/Write) |
| 44B | Disconnect From Library | Disconnects a VI that a LabVIEW project library owns from the owning project library. | No |
| 44C | Set VI Mod (Deprecated) | No | |
| 44D | Replicate Conpane | Make the connector pane of the VI Reference match the given connector pane. | Yes (Read/Write) |
| 44E | Add To AutoSave Pending List | No | |
| 44F | Remove Breakpoints | Yes | |
| 450 | Save:Hierarchy for Previous | Yes | |
| 451 | Save:Instrument (No Sync) | No | |
| 452 | Get Errors | Yes | |
| 453 | Tag:Get Names | Yes | |
| 454 | Give Temporary Unsaved Name | No | |
| 455 | Set Online Edit | Yes | |
| 457 | Control VI Apply Changes | Yes | |
| 458 | Set Path | No | |
| 459 | Set Filename | Yes | |
| 45A | Save:Copy As System | Yes | |
| 45C | Save:Instrument and Callers Debug | No | |
| 45D | Invoke Built in Menu Item (Not Implemented) | Yes | |
| 45E | Begin Scripting (Not Implemented) | Yes | |
| 45F | End Scripting (Not Implemented) | Yes | |
| 460 | Move Objects | Moves the objects by the offset amount of pixels. | No |
| 461 | Get Menu Item State (Not Implemented) | Yes | |
| 462 | Backup:Suppress (Not Implemented) | Yes | |
| 463 | Backup:Unsuppress (Not Implemented) | Yes | |
| 464 | Find Control with Key Focus | Return a reference to the control that currently has key focus. If there is not a control with key focus in the target VI, Not a Refnum is returned. | Yes (Read/Write) |
| 465 | Set VI Mod | No | |
| 466 | Compile:VI | Compiles the VI and optionally the entire VI hierarchy of that VI. | Yes (Read/Write) |
| 467 | Run VI And Deploy | Yes | |
| 468 | Deploy VI | Yes | |
| 469 | LadderVI Clear Ladder Editor | Yes | |
| 46A | Control Value:Get Default | Yes | |
| 46B | Control Value:Get Array Element Default | Yes | |
| 46C | Get Named Instance VI | Yes | |
| 46D | Code Coverage:Reset | No | |
| 46E | Code Coverage:Percentage | No | |
| 46F | Code Coverage:Uncovered Diagrams | No | |
| 470 | Control Value:Get Type | Yes | |
| 471 | Save:Interactive | No | |
| 472 | Set Is Instance | No | |
| 473 | Refresh Error Window Entry | Yes | |
| 474 | Block Diagram:Clean Up | Cleans up the block diagram of the VI by rearranging and resizing its objects and signals to improve readability. You also can select Edit»Clean Up Diagram to clean up the block diagram. | Yes (Read/Write) |
| 477 | Front Panel:Open In Native Window | Yes | |
| 478 | Block Diagram:Open In Native Window | Yes | |
| 479 | Detect Parallel Loops | Detects parallel loops in the VI. | Yes (Read/Write) |
| 47A | Get VI Dependencies (Names and Paths) | This method returns the names and paths of the VI dependencies of a VI. You can use this method to return a specific subset of the total set of VI dependencies of a VI. This method does not return non-VI dependencies, such as project libraries, XControls, classes, and statecharts. | Yes (Read/Write) |
| 47B | State Chart Instantiate VI | No | |
| 47C | Transfer VI Cleanup Proc | Yes | |
| 47D | Save:VI Hierarchy to Folder | No | |
| 47E | Library:Get Previous VI from Library | Yes | |
| 47F | Library:Get Next VI from Library | Yes | |
| 480 | Pause VI | Pauses or unpauses the VI execution. | No |
| 481 | Debugging:Step Into | Single-steps through a VI to help you debug the VI. To use this method, the VI must be paused. | Yes (Read/Write) |
| 482 | Debugging:Step Over | Single-steps through a VI to help you debug the VI. To use this method, the VI must be paused. | Yes (Read/Write) |
| 483 | Debugging:Step Out | Single-steps through a VI to help you debug the VI. To use this method, the VI must be paused. | Yes (Read/Write) |
| 484 | Debugging:Get Debug Button Display State | Returns TRUE if the button is enabled or FALSE if the button is grayed out. This method also returns the string for the tip strip associated with the button. For example, this method might return Step into For Loop for the Step Into button. | Yes (Read/Write) |
| 485 | Copy VI Hierarchy With FPGA Side Effects | No | |
| 486 | VI Hierarchy:Remove Generic From VI Hierarchy | No | |
| 488 | Save:Prepare For Compile And Save | No | |
| 489 | Transaction:Get Undo State | Returns whether there is an action to undo and, if so, the text that corresponds to that action. | Yes (Read/Write) |
| 490 | Transaction:Get Redo State | Returns whether there is an action to redo and, if so, the text that corresponds to that action. | Yes (Read/Write) |
| 491 | Compile:Compile To DFIR XML (Not Implemented) | Yes | |
| 492 | Reset Generated Code Profile Results | No | |
| 493 | Compile:Compile To DFIR CPP | No | |
| 494 | License:Get License Status | Yes | |
| 495 | Get Compile Metrics | Returns a string that describes transform metrics from the most recent compile of the VI, if metric recording was enabled. | Yes (Read/Write) |
| 496 | Set Is Instance No Owner Check | No | |
| 49B | Get Library Access Scope | Returns the access scope or inherited access scope of this VI if it is owned by a LabVIEW project library. This method provides the same information as the method Source Scope:Get of the Project Library class without requiring a reference to the owning project library. | No |
| 49C | Library:Has Library? | Yes | |
| 49D | Create from Data Type | Creates a control or constant of the data type you specify. LabVIEW always creates a control initially, even if you configure Style to create a constant or indicator. To change the type of the new object, use the Indicator property. | No |
| 49E | Get CallPaths To Other VI | Yes | |
| 49F | Check AppBuilderCache | No | |
| 4A0 | Save:Target Instrument For AppBuilder | No | |
| 4A1 | Control Value:Set Multiple | Yes | |
| 4A2 | Populate Asynchronous Call Pool | Ensures that the asynchronous call pool for a VI reference contains at least the number of data spaces specified by the Minimum Size parameter. By default, when you open a reference with the Open VI Reference function, LabVIEW allocates one data space per CPU core on the development computer. | Yes (Read/Write) |
| 4A3 | VI Icon:Load VI Icon Manually | No | |
| 4A4 | Export Interface | Yes | |
| 4A5 | Attempt Setting Disconnect From Callers Needed | No | |
| 4A6 | GetXMLDataTypes | Yes | |
| 4A7 | Get Control Index by Name | Gets the index for the control or indicator of the given name. If the control or indicator for which you want to get an index does not have a terminal on the block diagram, this method returns an error. | Yes (Read/Write) |
| 4A8 | Get VI Bookmarks | Returns the bookmark information for the specified VI reference. You must load the VI into memory in order to read the bookmark information. This method returns an error if the VI is password protected or if the VI does not have a block diagram. | Yes (Read/Write) |
| 4A9 | Get ObjectRef From BookmarkID | Returns a reference to the object, such as the label, that contains the bookmark. | Yes (Read/Write) |
| 4AA | Get AppBuilder Source Checksum | No | |
| 4AB | InternalStats | Yes | |
| 4AC | Get Missing Dependencies Information | Yes | |
| 4AD | Contains LinkRef | No | |
| 4AE | Clear TypeCast LinkRefs | No | |
| 4AF | Get UDClass LinkRefs | No | |
| 4B0 | Configure Panel As Top-Level Hidden | No | |
| 4B1 | GetAllHierarchyRefers | Yes |
Events
Show/Hide VI Events Table
| Legend | |
|---|---|
| Basic Development Environment | |
| VI Scripting | |
| Private | |
| Deprecated |
| Code | Name | Description | Type |
|---|---|---|---|
| 1073741895 | DiagNodeSize | ||
| 1073741847 | Key Down | Generated when the user performs keystrokes on the keyboard. | Notify |
| 2147483658 | Key Down? | Generated when the user performs keystrokes on the keyboard. | Filter |
| 1073741848 | Key Repeat | Generated at regular intervals when the user presses and holds a key anywhere on the front panel. | Notify |
| 2147483659 | Key Repeat? | Generated at regular intervals when the user presses and holds a key anywhere on the front panel. | Filter |
| 1073741836 | Key Up | Generated when the user releases a key on the keyboard. | Notify |
| 2147483680 | Menu Activation? | ||
| 1073741851 | Menu Selection (App) | Generated when the user selects an application item from the LabVIEW menu, such as Help»Show Context Help. Use the Menu Selection (User) event to generate an event when the user selects a user-defined menu item. | Notify |
| 2147483654 | Menu Selection? (App) | Generated when the user selects an application item from the LabVIEW menu, such as Help»Show Context Help. | Filter |
| 1073741829 | Menu Selection (User) | Generated when the user selects a user-defined item from the LabVIEW menu. Use the Menu Selection (App) event to generate an event when the user selects an application menu item. | Notify |
| 1073741839 | Mouse Enter | Generated when the cursor enters the bounds of the front panel. | Notify |
| 1073741838 | Mouse Leave | Generated when the cursor leaves the bounds of the front panel. | Notify |
| 1073741849 | Panel Close | Generated when the user tries to interactively close the front panel of a VI by selecting the Close item in the File menu or by clicking the close glyph on the window border. | Notify |
| 2147483651 | Panel Close? | Generated when the user tries to interactively close the front panel on a VI by selecting the Close item in the File menu or by clicking the close glyph on the window border. | Filter |
| 1073741843 | Panel Resize | Generated when the user sizes the front panel by clicking and dragging the window frame, minimizes or maximizes the front panel, or restores the front panel to its original size from a maximized or minimized state. | Notify |
| 1073741894 | Start Diagram Drag | ||
| 1073741860 | VI Will Be Purged |
History
 |
History information is needed. What changes have occurred over previous versions? |
| Version | Change(s) |
|---|---|
|
More info to come. |