Codejock Developer Community : How to use CXTPOffice2007Image::GetBitmapPixel http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sat, 13 Jun 2026 14:07:11 +0000 Thu, 11 Feb 2010 16:40:46 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=16176 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[How to use CXTPOffice2007Image::GetBitmapPixel : I want to draw a background gradient...]]> http://forum.codejock.com/forum_posts.asp?TID=16176&PID=56747&title=how-to-use-cxtpoffice2007imagegetbitmappixel#56747 Author: rdhd
Subject: 16176
Posted: 11 February 2010 at 4:40pm

I want to draw a background gradient that matches the colors of a ribbon bar group. But I don't know how to call GetBitmapPixel. I am trying to call GetBitmapPixel with the correct "point" coordinates. I can draw the image calling like this:
 
pImage->DrawImage(pDC, rcClient, pImage->GetSource(0,2), CRect(0,0,0,0));
 
and I see what appears to be the image I see when the ribbon draws a non-highlighted group (background). I cannot seem to find the correct offset point to pass GetBitmapPixel.
 
It also appears that the pixel returned is not in RGB format but rather is in BGR (I can only come close to the colors I see when I draw the image if I swap the red and green when calling the GDI GradientFill API.)
 
Can I call GetBitmapPixel to get the values I need? If not, how can I get the colors of the two "inner bands" that I see a group image contains.
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