You are here: NI Home > Support > Product Reference > Manuals > LabVIEW 8.5 Touch Panel Module Help

Owning Palette: Programming VIs and Functions

Use the Application Control VIs and functions to programmatically control PDA and Touch Panel VIs and applications.

There are some caveats to using the Application Control VIs and functions and the Menu functions in PDA and Touch Panel VIs.

Palette Object	Description
Call By Reference Node	Calls the VI specified by reference. The reference VI must be a strictly typed VI reference.
Call Chain	Returns the chain of callers from the current VI to the top-level VI.
Clear PDA Chart	Clears the data displayed on a graph or chart in a PDA or Touch Panel application. The data type you wire to Control Reference determines the polymorphic instance to use.
Close Reference	Closes a refnum associated with an open VI, VI object, an open application instance, or a .NET or ActiveX object.
Get Special Folder Path	Returns the path to the application or directories that applications frequently use.
Invoke Node	Invokes a method or action on a reference. Most methods have associated parameters.
Open Application Reference	Returns a reference to a VI Server application running on the specified computer.
Open VI Reference	Returns a reference to a VI, custom control, or global variable specified by a name string or path to the VI's location on disk.
PDA Get Screen Size	Returns the width and height of a PDA or Touch Panel screen in pixels.
PDA Screen Orientation	Determines if the orientation of the screen on the PDA or Touch Panel target changed while the application was running. This VI also returns the height and width of the screen on the target.
Property Node	Gets (reads) and/or sets (writes) properties of a reference.
Quit LabVIEW	Stops all executing VIs and ends the current instance of LabVIEW.
Run Application	Runs the application specified by application path. Use this VI instead of the System Exec VI for PDA and Touch Panel applications.
Set Help File Path	Sets the file path for an HTML help file you create for a PDA or Touch Panel application.
Show Hide Input Panel	Displays or hides the input panel.
Static VI Reference	Maintains a static reference to a VI. You can configure the Static VI Reference function to output a generic or strictly typed VI reference. After you place the Static VI Reference function on a block diagram, double-click the function to display a file dialog box where you can select a VI.
Stop	Stops the VI in which it executes, just as if you clicked the Abort Execution button on the toolbar. Before you call this function with a TRUE input, be sure to complete all final tasks for the VI first, such as closing files, setting safe values for devices being controlled, and so on.
Zoom Chart or Graph	Enables and defines zooming in graphs and charts in PDA or Touch Panel applications. The data type you wire to Control Reference determines the polymorphic instance to use.

Subpalette	Description
Menu Functions	Use the Menu functions to modify the menus in LabVIEW applications. Use the functions located on the top row of the palette to handle menu selections.
PDA Memory VIs	Use the PDA Memory VIs to manage memory on a PDA or Touch Panel device.

My Profile | Privacy | Legal | Contact NI   © 2009 National Instruments Corporation. All rights reserved.   |