pyux.set_on_left_dragstart_handler

Sets the on_left_dragstart handler for mouse dragging in the graphics area.

pyui.set_on_left_dragstart_handler(function)

Parameters

	Type	Description
function	function	A lua function that is invoked when dragging is started. nil will remove the handler.

Note:

In order to retreive on_left_dragmove and on_left_dragend events, the on_left_dragstart handler has to be set.

See also

Control Gallery, set_on_left_dragmove_handler, set_on_left_dragend_handler, set_on_left_click_handler, set_on_right_click_handler