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GR32_Rasterizers🞂TRegularRasterizer🞂UpdateRowCountProperty

TRegularRasterizer.UpdateRowCount

Determines the number of rasterized scanline rows processed before firing bitmap change notifications.

Declaration ​

pascal
property UpdateRowCount: Integer read FUpdateRowCount write FUpdateRowCount;

Description ​

UpdateRowCount specifies how frequently TRegularRasterizer triggers Dst.Changed area update notifications during scanline rendering.

  • If UpdateRowCount = 0 (default), change notifications are issued once after the entire destination rectangle is rasterized.
  • If UpdateRowCount > 0, notifications are issued in batches every UpdateRowCount scanlines, allowing progressive visual updates on GUI surfaces during long operations.