Hi, As far as I know, these system colours can be different depends on Windows themes, and "anyone" can change them in Windows. So clBtnFace in one machine has no guarantee to be the same to another machine. There's API to find out real colour for each system colour, although I can't remember on top of my head.
Cheers, Edward -----Original Message----- From: delphi-boun...@delphi.org.nz [mailto:delphi-boun...@delphi.org.nz]on Behalf Of Robert martin Sent: Friday, 20 March 2009 16:45 To: ro...@cfl.co.nz; NZ Borland Developers Group - Delphi List Subject: Re: [DUG] Windows System Colour Hi Rohit I suspect the issue is how you are replacing the pixel. I'm no expert in this but some of the painting / drawing routines do XORs etc of the new and old colour depending on the API and parmters set. I would check there first. Hope that is some help. Cheers Rob Robert Martin Software development manager Chreos www.chreos.co.nz Ph +64 03 377-0495 Rohit Gupta wrote: I am a little puzzled. I know that the system colours such as clBtnFace are special constants. In one part of the app, when I replace a pixel in a bitmap to clBtnFace it goes gray like it should. In another part of the app it goes money-greeny. Both do it consustently. Any clues ? Do I need to convert these special colours to real colours ? I couldn't find any function to do it. -- Regards Rohit Gupta B.E. Elec., M.E., Mem IEEE, Member IET Technical Manager Computer Fanatics Ltd Tel 4892280 Fax 4892290 Web www.cfl.co.nz ---------------------------------------------------------------------------- This email and any attachments contain information, which is confidential and may be subject to legal privilege and copyright. If you are not the intended recipient, you must not use, distribute or copy this email or attachments. If you have received this in error, please notify us immediately by return email and then delete this email and any attachments. ---------------------------------------------------------------------------- _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
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