Re: Stipples support in MS-Windows port

[Po Lu <luangruo@yahoo.com>]

"Elijah G." <eg642616@gmail.com> writes:

> I'm a bit stuck here, i could make to use the stipple bitmap, however it
> doesn't uses background and foreground color from propertized string,
> (and looks very weird).
>
> The drawing works fine, but the problem is trying to get stipple bitmap,
> and makes it work well.
>
> One way that i thought for fix this is redefining bitmap stipple for
> using same string fg and bg colors and bitmap width and height, but for
> this i need the bitmap bits.
>
> I found that image_create_bitmap_from_data also makes stipple bitmap
> (https://git.savannah.gnu.org/cgit/emacs.git/tree/src/image.c#n601);
> i tried to found bitmap bits by using stipple bitmap id but some
> functions/macros are only for X11 (e.g x_bitmap_height and
> x_bitmap_width).
>
> I would be happy to read any advice or feedback.
>
> I've attached to this email a patch for the work that i've done and some
> screenshots for the final results.
>
> Thanks.

I don't follow your question, but on the assumption that you've run into
difficulties with replacing the background and foreground of the pattern
with those of your choosing, perhaps you must set the "text" and
"background" colors of the DC as suggested by the documentation:

  A brush created by using a monochrome (1 bit per pixel) bitmap has the
  text and background colors of the device context to which it is drawn.
  Pixels represented by a 0 bit are drawn with the current text color;
  pixels represented by a 1 bit are drawn with the current background
  color.

?  Manipulating the stipple bitmap directly should not be necessary, not
with these facilities.