BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  TColor          BorlandTalk.com Forum Index -> Delphi ActiveX Controls Usage View previous topic :: View next topic   Author Message David Dvali Guest Posted: Tue Jul 08, 2003 9:28 am    Post subject: TColor How can I make TColor value (color) a more dark? Back to top Robby Guest Posted: Tue Jul 08, 2003 9:47 am    Post subject: Re: TColor This is the ActiveX newgroup. You need to post this somewhere more applicable like 'borland.public.delphi.vcl.components.using' "David Dvali" <d_dvali (AT) yahoo (DOT) com> wrote Quote: How can I make TColor value (color) a more dark? Back to top Earl F. Glynn Guest Posted: Wed Jul 09, 2003 4:08 am    Post subject: Re: TColor Quote: "David Dvali" <d_dvali (AT) yahoo (DOT) com> wrote How can I make TColor value (color) a more dark? "Robby" <rbooker (AT) synstar (DOT) com> wrote Quote: This is the ActiveX newgroup. You need to post this somewhere more applicable like 'borland.public.delphi.vcl.components.using' Actually, borland.delphi.graphics would have been a better suggestion, but I'll just answer your question here. TColor can have five different formats so I'm not sure how to answer your question in general. (Sorry, I don't want to cover all five cases <g>). http://homepages.borland.com/efg2lab/Library/Delphi/Graphics/VCLRTL.htm#TColor If you're using RGB(red, green, blue), you could try RGB(red-delta, green-delta, blue-delta) for a slightly darker color -- but make sure the values are still zero or more after the subtraction. Alternately, convert RGB to HSV (or some other color space), reduce the "V" value, and convert HSV' back to R'G'B'. This maintains the same color hue and saturation. Look for "Color Spaces, Conversions" here: http://homepages.borland.com/efg2lab/Library/Delphi/Graphics/Color.htm -- efg -- Earl F. 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