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Window Get Last Event (G Dataflow)

Last Modified: October 24, 2017

Returns the events generated through the image windows as well as the data associated with them.

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events list

Events to be obtained.

The default case returns all events generated through the image windows as well as the data associated with them. This node enables you to specify the image window events that interest you.

Name Value Description
No event 0

No event.

Click event 1

A user has clicked in an image window.

Draw event 2

A user has drawn in an image window.

Move event 3

A user has moved an image window.

Size event 4

A user has resized an image window.

Scroll event 5

A user has moved the scrollbars in an image window.

Activate event 6

A user has chosen (clicked once to activate) an image window.

Close event 7

A user has closed an image window.

Double-click 8

A user has double-clicked in an image window.

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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window number

Image window that generated the event.

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event

Type of event.

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tool

Indicator specifying the tool used to generate the event.

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coordinates

Relative position of the event.

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other parameters

Information associated with an event, such as positioning and region distances.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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