XnView Software

Thanks that seems to work fine!

So in LibGFL.pas 3 lines need changing.



Starting Line 135, Alpha added:

// Color
type PGFL_COLOR = ^TGFL_COLOR;
TGFL_COLOR = record
Red: GFL_UINT16;
Green: GFL_UINT16;
Blue: GFL_UINT16;
Alpha : GFL_UINT16;
end;




Starting Line 542, PGFL_COLOR changed ...

Yes it starts off as a 24bit BMP, I then greyscale it and then set it back to RGB and Gamma correct to make it lighter.

I removed the greysacle/RGB, gamma and SetColorAt lines so just ended up with a loop performing a GetColorAt's and it still AV'ed.

Before, as an experiment, I removed the ...

I assumed it would be, so looped from 0 to width/height -1 but it Av'ed so I thought I'd try 1 to width/height just in case but didn't help!

To other members using Delphi (I'm using D5) has anyone used gflGetColorAt sucessfully? If so I'd appreciated it if you'd have a quick look at my function ...

Hello

Don't understand how I'd use TransparentIndex. I assume it's the index in to the colour palette for the transparency colour. However how do I work out what to set it to, my background as usual is #ff00ff.

Also, by default, the BMP's are 24bit but TransparentIndex is only a Int16 (although ...

You mean have two source images, one being the mask and the other the actual graphic? If so unfortunately that's not really practical as I'll want to convert 1000+ toolbar images all of which are BMP's with #FF00FF backgrounds.

Or is there a way to do this using your library? Couldn't find anything ...

Hello Pierre


Yes the alpha-blended PNG is 32 bit, just want to grey scale it and lighten it with some Gamma correction whilst still keeping the alpha-blending.

Marc

Sorry, hadn't logged in!

Hello again,

I'm stuck with another problem. I'm trying to greyscale and then lighten using Gamma correction an alpha-blended PNG image. I then want to save it out as a greyscaled alpha-blended png.

I've tried using the LoadParam ColorModel := GFL_GREY, but the output is still coloured but ...

Hello

I'm writing a small utility in Delphi 5 that converts BMP toolbar images I've created in various ways. As you probably know the colour bottom left pixel defines what counts as transparent. I use RGB FF00FF, so all pixels that are that colour apear transparent in the toolbar.

The first test ...