Picture event is generated when a user clicks the left-mouse
button and starts dragging the selected object.
To execute Drag operation, data, which are to be
transferred, must be prepared first.
With the help of functions:
- %HI_GetBrowserMultiselect
- %HI_GetSelectedItem
- %HI_GetItemText
you can find out which elements are selected in the graphic objects. Based
on the detected state, you may decide whether the operation
Drag is to be done.
If yes, the necessary data must be prepared with the help of these
functions:
- %SetDragDataText
- %SetDragDataFileList
- %SetDragDataIPS
If this function is not called, Drag operation will not be executed.
Example
ENTRY OnDragStart (IN INT _refID)
; creating data for D&D, e.g. only text
%SetDragDataText (0, "Textová hodnota")
; initiating Drag&Drop
%HI_DoDragDrop ( _refId)
END OnDragStart