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

but please be careful not to use APIs introduced after the earliest
versions of MS-Windows we support, which I believe is Windows NT 4.0.