TRasterImage.ScanLine property platform
Provides indexed access to a scan line in the raw image data.
Declaration
property ScanLine[Row: Integer]: Pointer; platform read GetScanLine;Description
ScanLine is a read-only indexed
Pointer property which
provides access to a scan line in the raster image. The scan line consists of
a single row of pixels in the raw image data.
Row contains the row number read from the
TRawImage
instance provided by the
GetRawImage method. Row number values
start at
0 (
zero).
The return value is a Pointer to the byte values for the requested row in the raw image data.
Reading a value in ScanLines should always be performed inside a BeginUpdate ... EndUpdate sequence.
ScanLine is a platform-specific property, and may not be implemented for all platforms or widgetsets.
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.