TRawImage.GetLineStart function

Member of TRawImageIn unit GraphType

Gets a pointer to the byte position at the beginning of the specified scanline.

Declaration

pascal

function GetLineStart(ALine: Cardinal): PByte

Description

The return value is Nil if Data has not been assigned in the class instance, and when the ALine argument contains 0 (zero). The pointer position is calculated as the product of ALine and the BytesPerLine setting in the image Description.

An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.