Generated when the user lifts the mouse when hovering over a control when there is a drag and drop operation pending.

Use this event to implement custom drop behavior.

Event Data Fields

Name Description
Source

Source of the event. LabVIEW UI refers to any built-in user interface event.

0LabVIEW UI
Type

Type of event that occurred, such as Mouse Down, Value Change, Timeout, and so on.

Time

Value of the millisecond timer when the event occurred.

CtlRef

Reference to the control on which the event occurred.

Coords

Coordinates of the location of the mouse click at the time the event occurs. Coordinates are relative to the drop target's owning pane origin, excluding clusters.

Button

Value that corresponds to which mouse button the user clicked. Left mouse button is 1, right mouse button is 2. Operating systems might assign higher numbers if you have a mouse with more than two buttons. For filter events, you can modify the data returned by this event data field.

Mods

Cluster of Booleans that contain platform-independent modifiers. LabVIEW returns all platform-dependent modifiers in the PlatMods event data field. For key events, this event returns a Boolean indicating if the event occurred on the numeric keypad. For mouse events, this event returns a Boolean indicating if the event was a double-click. For both events, a Boolean is returned if the platform-independent menu key, such as <Ctrl> on Windows or <Command> on macOS, was pressed when the event occurred. For filter events, you can modify the data returned by this event data field.

PlatMods

Cluster of Booleans that contain platform-dependent modifiers. Specifies if platform-dependent keys, such as <Ctrl>, <Shift>, <Alt>, <Command>, and <Option> were held down when the event was triggered. For filter events, you can modify the data returned by this event data field. A key can be both a Mod and PlatMod. For example, <Ctrl> is the platform-independent menu key on Windows, but you also can use it in platform-dependent programming.

AvailableDataNames

Array of unique names of data types available during this drag and drop operation. Use this array to determine if a data type is available that the drop target can accept

Accepted?

Reports to the drag source the action that the drop target would take if the drop occurred at this moment. TRUE, if the target would accept the drop, FALSE otherwise.

Examples

Refer to the following example files included with LabVIEW.

  • labview\examples\Structures\Event Structure\Drag and Drop - Initiating a Custom Drag.vi