[Gambas-user] Difference between Picture and Image?

[Eilert]

Hi Rob,

thanks for your comprehensive information.

Rob schrieb:
> On Thursday 13 January 2005 06:18, Eilert wrote:
> 
>>What is the difference between Image and Picture?
> 
> 
> To explain this difference, I first have to explain to you how 
> X11 (the graphics subsystem of Linux and almost every other 
> Unix) works a little bit.  With X, your program can run on one 

I know that, I'm running LTSP here, and Gambas is on the server whilest 
I am sitting in my office and work with it on my own machine.

> An Image is a graphic that lives in your program.  As such, you 
> have more access to it and can do more stuff to it, like 
> stretch, fine rotate, etc.

So Image is for me.

> 
> A Picture is a graphic that lives on your X display, whether it's 
> on the same machine or in Mongolia or whatever.  So any 
> manipulation you do to this picture will happen over a network 
> link or a local pipe, and as such it's likely to be a lot 
> slower.

The point is, what is Picture good for then? It's slower, it doesn't 
have so many possibilities and the Image is displayed anyway... Maybe 
over a slow connection, Picture will appear faster?

> To sum up, here's how you can think of them: Image is for 
> manipulation, Picture is for display.

Yes, and that answers my second question, too. I now tried Image and 
found the Stretch function. The only drawback is that it needs absolute 
pixels instead of percentages, but I can live with it :-)

Thank you very much again for your time!

Rolf