Luc,
I use this function in SrcEdit. http://srcedit.brainsware.org
It has been proven working for me, but i can't ensure you a BUG-less function.
:)
> I wrote earlier:
>
> > Given a color index or RGB color value, how can I find the
> > inverted color I would get if I used an API like WinInvertPixel
> > on a pixel of the said color?
Hope you could do with this one:
IndexedColorType invertIndexedColor(IndexedColorType col){
UInt32 supportedDepth = 0;
if(gRomVersion >= version35){
RGBColorType rgb;
// check for real black
if(col>0xe5) col = 0xff;
WinIndexToRGB(col,&rgb);
// convert RGBColorType
rgb.index = 255 - rgb.index;
rgb.r = 255 - rgb.r;
rgb.g = 255 - rgb.g;
rgb.b = 255 - rgb.b;
return WinRGBToIndex(&rgb);
}
else{
ScrDisplayMode(scrDisplayModeGetSupportedDepths,NULL,NULL,&supportedDepth,NULL);
return(IndexedColorType)supportedDepth - col;
}
}
> I tried shifting the color index by half the number of available colors but
> that does not exactly correspond to the inverted color (ex. 255/black becomes
> 127 or ... brownish green).
>
> So, how do APIs like WinInvertPixel do that? Ben would know...
>
>
> Luc Le Blanc
Sincerely
/John
/John
--
For information on using the ACCESS Developer Forums, or to unsubscribe, please
see http://www.access-company.com/developers/forums/
