The basic behavior of the layer is controlled by its LayerOptions property, an unsigned 32-bit integer field of bits. The upper 8 bits in this field are reserved for default options:
Bit # | Constant Name | Description |
---|---|---|
31 | LOB_VISIBLE | Controls the layer visibility |
30 | LOB_GDI_OVERLAY |
Indicates that the layer performs drawing when its owner (TCustomImage32 control or its descendant) draws its GDI Overlays. [ Note: Most likely, this constant will not be used in future versions. Do not use it ] |
29 | LOB_MOUSE_EVENTS | Specifies whether the layer responds to mouse messages. |
28 | LOB_NO_UPDATE | Disables automatic repainting when the layer changes its location or other properties. |
27 | LOB_NO_CAPTURE | Allows to override automatic capturing of mouse messages when the left mouse is pressed on top of the layer. This bit has no effect if LOB_MOUSE_EVENTS is not set. |
26 | LOB_RESERVED_26 | Reserved for future use |
25 | LOB_RESERVED_25 | Reserved for future use |
24 | LOB_RESERVED_24 | Reserved for future use |
Other 24 bits can be used for any other purpose, as customized layer classification etc.
Copyright ©2000-2024 Alex Denisov and the Graphics32 Team - Graphics32 2.0 - Help file built on 18 Feb 2024