problem drawing transparent fill to NSImage

Subject: problem drawing transparent fill to NSImage
From: john <email@hidden>
Date: Thu, 22 Mar 2007 02:54:08 -0400
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Hi,

I'm drawing into NSImage by drawing another NSImage and then using NSRectFill() ot overlay a semi-transparent colour. The image is created fine if I don't draw the semi-transparent fill, but if I do then the fill covers the image and the image is not visible.

Why is the transparent fill not transparent?

Thanks.

- John
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