Re: Stipples support in MS-Windows port

[Elijah G <eg642616@gmail.com>]

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El sáb., 4 de mayo de 2024 10:30 p. m., Po Lu <luangruo@yahoo.com> escribió:

> Po Lu <luangruo@yahoo.com> writes:
>
> > On Android, for instance, the relevant code exists in two functions
> > defined in EmacsGC.java, prepareStipple and blitOpaqueStipple, which are
> > nothing akin to the X implementation it emulates.  The same is true of
> > haikuterm.c, haiku_draw_stipple_background, and BView_DrawBitmapTiled in
> > haiku_draw_support.cc.
>
> Perhaps "pattern brushes" are the tool for the job?
>
>
> https://learn.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-createpatternbrush


After some tests, i could execute the snippet sent in this thread without
crashes with something similar to a stipple (sadly i cannot send the patch,
i'm not in my computer),  i tried using CreatePatternBrush, however it
needs the bitmap as a HBITMAP variable type, i've found some examples in
the same file (w32term.c) such as fringe bitmap that uses a HBITMAP var.
I would like to know any idea for make stipple bitmap as a HBITMAP (I'm not
sure if i should make it using CreateBitmap).
Also i would like to know if its a good idea remove XSetFillStyle from
w32_draw_glyph_string_background (
https://git.savannah.gnu.org/cgit/emacs.git/tree/src/w32term.c#n1271),
AFAIK it is only for set the fill-style which i dont think it's necessary
since i'm implementing the stipple fill-style inside a XFillRectangle
implementation which i'm working.

Thanks

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