TPNGImage help

TPNGImage

Components > TPNGObject > Properties > TransparencyMode


Returns the transparency mode used by this png image.

type
TPNGTransparencyMode = (ptmNone, ptmBit, ptmTranslucid);
property
TransparencyMode: TPNGTransparencyMode;

Description

There are currently three transparency modes for png: none when all the image is opaque, bit when one color will be fully transparent and translucid when all colors may have transparent values. This property is mainly to mantain compability with Windows Delphi TBitmap since it supports only None and Bit (Translucid data is lost when assigning to a TBitmap).