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Hi,<br>
<br>
If I set the fill colour of an ROI to rint(0) I get solid black
instead of nothing (100% transparent black). This appears the same
as -16777216, which I believe is black with full alpha channel (100%
opaque or RGBA = #000000ff). <br>
<br>
I get the same results with other colours that set the alpha channel
(the first byte of the 32-bits) to 0.<br>
<br>
Is this correct? Please correct me if I'm wrong.<br>
<br>
<div class="moz-signature">-- <br>
With kind regards,<br>
<br>
<strong>Paul K Korir, PhD</strong><br>
<i>Scientific Programmer</i><br>
EMBL-EBI<br>
Main Building, A2-35,<br>
WTGC, Hinxton, Cambridge CB10 1SD<br>
P: +44 1223 49 44 22<br>
F: +44 1223 49 44 68</div>
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