Widget.dragSourceSet

Sets up a widget so that GTK+ will start a drag operation when the user clicks and drags on the widget. The widget must have a window.

Parameters

startButtonMask GdkModifierType

the bitmask of buttons that can start the drag

targets TargetEntry[]

the table of targets that the drag will support, may be NULL

actions GdkDragAction

the bitmask of possible actions for a drag from this widget