fxruby users - May 2005 - problem with FXMemoryBuffer and OpenGL

Hi!

I just tried to migrate a program fom FOX 1.0 to FOX 1.2 and ran intgo this 
problem (ruby 1.8.2):

FXMemoryBuffer::data does not return an array of FXColor, but the same string 
I get when I call FXMemoryBuffer::to_s (it''s 33 chars long). Despite 
FXMemoryBuffer::[] works and I can access the individual pixels. In 
consquence I can''t access the bitmaps and can''t build an
OpenGL texture.

example:

...
img = FXPNGImage.new(@@application, nil, IMAGE_KEEP|IMAGE_SHMI|IMAGE_SHMP)
...
GL::TexImage2D(GL::TEXTURE_2D,0,GL::RGBA,img.width,img.height,0,GL::RGBA
              GL::UNSIGNED_BYTE,img.data.to_s)
...

works using FOX 1.0, fails using FOX 1.2.

Any idea how to solve this?

nik
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On May 13, 2005, at 5:55 AM, Dr. Nikolaus Klepp wrote:
> I just tried to migrate a program fom FOX 1.0 to FOX 1.2 and ran intgo 
> this
> problem (ruby 1.8.2):
>
> FXMemoryBuffer::data does not return an array of FXColor, but the same 
> string
> I get when I call FXMemoryBuffer::to_s (it''s 33 chars long).
Despite
> FXMemoryBuffer::[] works and I can access the individual pixels. In
> consquence I can''t access the bitmaps and can''t build an
OpenGL
> texture.
Nik,

This sounds like a bug that was fixed in FXRuby 1.2.4 (see 
http://www.fxruby.org/doc/changes.html). Are you sure you''re using the 
latest release of FXRuby 1.2? A quick way to check is by typing:

	ruby -rfox12 -e ''puts Fox.fxrubyversion''

at the command line. If you''re running FXRuby version 1.2.3 or earlier,
please upgrade first and then let me know if the problem persists.

Hope this helps,

Lyle