LC_EVENT_PICKENT

Home

LiteCAD generates LC_EVENT_PICKENT event when user clicks by cursor on entity.

The following properties are used for this event type:

Property	Description
LC_PROP_EVENT_TYPE	Value LC_EVENT_PICKENT
LC_PROP_EVENT_WND	Handle to a graphics window
LC_PROP_EVENT_DRW	Handle to a drawing
LC_PROP_EVENT_BLOCK	Handle to a block which contains the entity
LC_PROP_EVENT_ENTITY	Handle to the picked entity.
LC_PROP_EVENT_FLOAT1	Left of selection rectangle.
LC_PROP_EVENT_FLOAT2	Bottom of selection rectangle.
LC_PROP_EVENT_FLOAT3	Right of selection rectangle.
LC_PROP_EVENT_FLOAT4	Top of selection rectangle.
LC_PROP_EVENT_INT1	For pick by rect: 1 - cross mode, 0 - inside mode
LC_PROP_EVENT_INT2	1 - pick by point, 0 - pick by rectangle.

In order to override LiteCAD default processing of this event, within the event procedure call lcEventReturnCode function with non-zero parameter.
By default, LiteCAD will select/unselect the picked entity.