OpenEuphoria

Re: graphapp (Irv M)

• Posted by Irv Mullins <irv at ELLIJAY.COM> Sep 25, 2000
• 384 views

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On Mon, 25 Sep 2000, mic _ wrote:
> Using the graphapp lib, how do I copy a chunk of memory (a virtual screen)
> to a window ?
> I'm looking for something like Windows' StretchDIBits() (it doesn't have to
> do stretching though).
> I noticed that there is a structure used with some graphapp functions called
> drawings. What do these structures look like (what are the offsets and
> meanings of its members) ?

Hi:

I have attached an htm file from the GraphApp manual that (maybe) answers your
question.  It seems that a "bitmap" holds an image in off-screen memory, and
GraphApp can copy the image to the screen very rapidly.

There's also a way to peek and poke into that off-screen memory, using
GraphApp. I haven't experimented with either of these, so I can't be sure
the wrappers in graphapp.e work correctly. If not, let me know,
and I'll try to fix the problem.

Regards,
Irv

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