Vcl.Imaging.pngimage.TPngImage.ExtraScanline
Delphi
property ExtraScanline[const Index: Integer]: Pointer read GetExtraScanline;
C++
__property void * ExtraScanline[const int Index] = {read=GetExtraScanline};
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| property | public | Vcl.Imaging.pngimage.pas Vcl.Imaging.pngimage.hpp |
Vcl.Imaging.pngimage | TPngImage |
Description
Reads a scan line at a specified index.
Use ExtraScanline to retrieve the scan line from a specified index. A scan line is a row of pixels in the image rectangle. ExtraScanline returns a pointer to the memory holding that row.
ExtraScanline is used to read the remaining 8-bit of a 16-bit pixel. To read the first 8 bits of a pixel, use the Scanline property.