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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