what's the point?

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Hrothgar
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what's the point?

Post by Hrothgar » Wed Sep 27, 2006 4:38 am

I'm having some trouble with the POINT command in FB. I'm using it to check the rgb colour values of the background against something else but for some reason it only works with rgb values of 0 or 255.

eg.

this works fine
dotcolour = point(x,y)
if dotcolour = &hFF00FF then blah blah blah

but this doesn't
dotcolour = point(x,y)
if dotcolour = &h808080 then blah blah blah

Any ideas??
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{Nathan}
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Post by {Nathan} » Wed Sep 27, 2006 5:32 am

Yes, I have an idea.

Use the RBG() function, and find a converter for the hex to RBG.

http://www.kenjikojima.com/java/RGBHexConverter2.html

The above seems so work. If you need more, just google "hex color rbg converter."

-Nathan
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Antoni
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Post by Antoni » Wed Sep 27, 2006 2:35 pm

What's the value returned by point?

moneo
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Post by moneo » Wed Sep 27, 2006 9:16 pm

Antoni, que milagro ver tu nombre. ?Como has estado, hombre?

Un fuerte abrazo,
Eduardo Moneo

Hrothgar
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Joined: Tue Nov 22, 2005 8:32 pm
Location: Perth, Oz

Post by Hrothgar » Thu Sep 28, 2006 4:09 am

The windows calculator is as good a converter as any and I've tried both using RGB() and &h.

It returns a value close to the colour but not the colour itself.

The picture that is being POINTed is a grey colour RGB(128,128,128) or &h808080 POINT returns 8684164 which is &h848284 in hex which is RGB(132,130,132)

it was BLOADed from a .BMP file too if that has anything to do with it.
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Z!re
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Post by Z!re » Thu Sep 28, 2006 12:43 pm

What mode are you in?

Also, point returns a RGBA vlue, 32bit integer, NOT a 24bit RGB value.
I have left this dump.

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