TIEBitmap.IsAllBlack

Declaration

function IsAllBlack(): Boolean;

Description

Return True if all pixels are Zero.

Examples

If iebmp.IsAllBlack() then
  ShowMessage( 'Image is completely black' );

if bmp.HasAlphaChannel( True ) and bmp.AlphaChannel.IsAllBlack() then
  ShowMessage( 'Image is completely transparent' )
else
  ShowMessage( 'Image NOT transparent' );

See Also

◼Full
◼SyncFull
◼IsEmpty
◼IsBlank

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