Using TImage32
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Bitmask of LOB_* option flags controlling layer behavior and repainting.
property LayerOptions: Cardinal read ... write ...;
LayerOptions combines LOB_* option bit flags (such as LOB_VISIBLE, LOB_MOUSE_EVENTS, and LOB_GDI_OVERLAY).
LayerOptions
LOB_*
LOB_VISIBLE
LOB_MOUSE_EVENTS
LOB_GDI_OVERLAY
Layer Option Bits