Drag Enter Event

Installed With: Full Development System

Class: Control Events

Type: Notify

Generated when there is a drag operation pending and the cursor enters the bounds of a control.

Use this event to report to the drag source if this drop target accepts the dragged data.

Example

Event Data Fields

Name	Description
Source	Source of the event. LabVIEW UI refers to any built-in user interface event. 0 LabVIEW 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 Mac OS, 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.
Available Data Names	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.

Example

Refer to the Drag and Drop - Custom Source Handle Dropping VI in the labview\examples\general\dragdrop directory for an example of using the Drag Enter event.

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