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Get Drag Drop Data

LabVIEW 8.5 Help
August 2007

NI Part Number:
371361D-01

»View Product Info

Returns drag data from the current drag and drop operation. Only use this function when it is necessary to access the drag data, not just to examine the data type. If a drag and drop operation is not in progress, LabVIEW returns an error. If the data requested is unavailable, LabVIEW returns an error.

Example

data name is the user-defined name of the drag data that you want to retrieve. You also can use the built-in LabVIEW data types.
LabVIEW Data Type Definition
LV_TEXT String
LV_TREE_TAG String
LV_TREE_ITEMS Array of a cluster that contains an array of strings in the item you are dragging (in order from left to right), an integer that represents the glyph index associated with the item from which you are dragging data, and an integer that represents the indent level of the item from which you are dragging.
LV_LISTBOX_ITEMS Array of a cluster that contains an array of strings in the item you are dragging (in order from left to right) and an integer that represents the glyph index associated with the item from which you are dragging data.
LV_PATH Path
type is the data type of the drag data you want to retrieve.
error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
data is the drag data returned from LabVIEW. data can adapt to any data type.
error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

Example

Refer to the Drag and Drop - Built-in Source Custom Data VI in the labview\examples\general\dragdrop directory for an example of using the Get Drag Drop Data function.


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