I am not sure if this will work for what you are trying to do, but you can do an XOR on a layer.
See the ...\Samples\ImageEditing\Layers.dpr and specifically look at the SelectedLayer Effects Tab:
procedure Tfmain.ComboBox2Change(Sender: TObject);
begin
with ImageEnView1 do
begin
CurrentLayer.Operation := TIERenderOperation(ComboBox2.ItemIndex);
Update;
end;
end;
William Miller
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XOR Layer
Posted - Nov 26 2012 : 03:29:37
