bug#21173: 25.0.50; New frames positioned off screen with multiple monitors

[Andy Moreton <andrewjmoreton@gmail.com>]

On Wed 28 Oct 2015, martin rudalics wrote:

>> Hopefully this reply includes a suiteably formatted patch.
>
> Thanks.  But compiling gets me now:
>
> ../../src/w32term.c: In function 'x_calc_absolute_position':
> ../../src/w32term.c:5926:7: error: incompatible type for argument 1 of 'Fw32_display_monitor_attributes_list'
> ./globals.h:4463:1: note: expected 'Lisp_Object' but argument is of type 'int'

What non-default build options are you using to see this error ?
I've built this without warnings on:
  mingw32 32bit
  mingw32 32bit wide-int
  mingw64 64bit
  cygwin  64bit 

> I suppose you meant writing something like
>
>       Lisp_Object frame, list;
>
>       XSETFRAME (frame, f);
>       list = Fw32_display_monitor_attributes_list (frame);
>
> Please have a look.

I'm sure you know more about it than me - I don't know enough about the
internals to judge which is correct. Feel free to adjust the patch to
fix this.

The patch as shown was tested with multiple monitors on Win7 64bit for both
mingw64 and cygwin w32 builds, and worked correctly with the testcase
from the original reporter.

I've retested this briefly with your fix, which still works for the
simple testcase shows by Fran Litterio.

    AndyM