getpixel()

[Tigairius]

Could there be a get pixel function? like

PHP Code:

getpixel(obj, screenx, screeny) 


Example:
getpixel("GraalControl", mousescreenx, mousescreeny);

It would make my life a whole lot easier, I don't know how easy this would be to implement but it seriously needs doing please.

[cbk1994]

This should be extremely easy I would think.

I mean, they even do this kind of thing in Paint.

If nothing else, you could take a screenshot and then use getPixelOnImage() or whatever it is.

[Tigairius]

Originally Posted by cbk1994

This should be extremely easy I would think.

I mean, they even do this kind of thing in Paint.

If nothing else, you could take a screenshot and then use getPixelOnImage() or whatever it is.

Yeah, but that would be pretty inefficient imo, having to save a screenshot on the client's computer and then getimgpixel on it...

[DustyPorViva]

Well there's already a getpixel function that I listed in your other thread? Or is this specifically about getting pixel information from an object?

edit: scratch that, I forgot the current function gets it from an image.

[cbk1994]

Originally Posted by Tigairius

Yeah, but that would be pretty inefficient imo, having to save a screenshot on the client's computer and then getimgpixel on it...

I know, but it's better than nothing I guess.

[Robin]

Probably better if it was a getRect(x,y,w,h) function otherwise it would slow things down tremendously

[Tigairius]

Originally Posted by Robin

Probably better if it was a getRect(x,y,w,h) function otherwise it would slow things down tremendously

Good idea, getpixelrect(x, y, w, h) or something I really need it though.

[Admins]

Such a function would be complex for OpenGL/DirectX (taking a screenshot, getting the pixel from that), so it's not planned to be added anytime soon. It would however be simple for the new external windows.

[Tigairius]

Originally Posted by Stefan

Such a function would be complex for OpenGL/DirectX (taking a screenshot, getting the pixel from that), so it's not planned to be added anytime soon. It would however be simple for the new external windows.

Try to add that in to the external windows

[cbk1994]

Originally Posted by Stefan

Such a function would be complex for OpenGL/DirectX (taking a screenshot, getting the pixel from that), so it's not planned to be added anytime soon. It would however be simple for the new external windows.

Would you really need to take a screenshot? That was just an example of a bad way it could be done. I would think it would be better to do it however other programs do it. I'm guessing each operating system has some way to do it as well?

[Robin]

Originally Posted by Stefan

Such a function would be complex for OpenGL/DirectX (taking a screenshot, getting the pixel from that), so it's not planned to be added anytime soon. It would however be simple for the new external windows.

Surely you should be able to reference a rect from the surface? (At least on DirectX?)

But yeah it's probably much easier to do with the GDI on windows, but on OS X?

[cbk1994]

Originally Posted by Robin

Surely you should be able to reference a rect from the surface? (At least on DirectX?)

But yeah it's probably much easier to do with the GDI on windows, but on OS X?

There are programs that do it in real time (for example, Fireworks) on OS X.

I'm sure operating systems must have some library or something to do this.

[Robin]

Originally Posted by cbk1994

There are programs that do it in real time (for example, Fireworks) on OS X.

I'm sure operating systems must have some library or something to do this.

Not quite the same thing we're talking about Chris.

[cbk1994]

Originally Posted by Robin

Not quite the same thing we're talking about Chris.

From what I can understand, you need to get the color of a pixel at (x, y) on the screen?

[Tigairius]

Originally Posted by cbk1994

From what I can understand, you need to get the color of a pixel at (x, y) on the screen?

That's what I need, yes.

[cbk1994]

Fireworks does it (yes, it is selected by my mouse, but it gets hidden when you take a screenshot).

This makes me think it would be a system thing, as it can do it with anything on the screen, not just in that program.

[Crow]

Actually, theres a handy program I often use which zooms the few pixels around your mouse and gives color informations for the one exactly at your mouse. It can be used on your whole screen, so I guess it should be possible, somehow, without taking a screenshot, because this baby doesnt.
Attached it for the people interested.

[cbk1994]

I just remember this, there's also a tool built into Mac.