OpenEuphoria

Re: BK_COLOR()

• Posted by David Gay <moggie at INTERLOG.COM> Oct 09, 1996
• 2371 views

At 12:27 AM 10/9/96 -0400, you wrote:
>---------------------- Information from the mail header -----------------------
>Sender:       Euphoria Programming for MS-DOS <EUPHORIA at
>MIAMIU.ACS.MUOHIO.EDU>
>Poster:       Daniel Berstein Zimmermann <dberst at CMETNET.CMET.NET>
>Subject:      BK_COLOR()
>-------------------------------------------------------------------------------
>
>Hi everybody,
>
>        I4m just starting with Euphoria and got4 a problem... When I set
the background
> colour using the
>defeault built-in function, it seems the whole palette is changed, thus
color #0
> is set to the RGB of the
>color I choosed for background. This is quite a problem if you are trying to
> load some bitmaps because the
>"black" pixels become background-color pixels.
>        Thus any have an idea to easily overcome this stuff????
>
>        Thanks.
>
>
I found two ways of getting around this problem Daniel. The first thing
was to convert all the BMPs I made to actual Euphoria statements.
As a result, the black colour didn't go "transparent" on me. I used
display_image() and pixel() statements instead that were made
from BMP conversion.

The second approach when converting the BMP's became too much of a hassle was
to select a wider range of colours to create a BMP in. Instead of selecting
black, I selected a colour that was very close to black's RGB setting, but
was not black. It did the job perfectly.

Personally, I'd recommend the first approach even though it is a bit more
work.

Hope this helps!

David Gay