From: Phil Smy <phil@...>
Date: 2009-05-06T20:59:28+09:00
Subject: calling winapi for EnumDisplayMonitors

I am trying to write a desktop application in Ruby. We need to find out
what monitors are attached to the XP machine this will run on.
I looked at how SWT does this and it is accomplished via calling
EnumDisplayMonitors (windows api).

I cannot figure out how to call this from within Ruby using Win32API.
EnumDisplayMonitors's api is this:
BOOL EnumDisplayMonitors(
  HDC hdc,
  LPCRECT lprcClip,
  MONITORENUMPROC lpfnEnum,
  LPARAM dwData
);

How can I supply a proc? Is what I want to do even possible?

Any help would be appreciated. All this kind of stuff is not very
clearly documented for the novice and I can't find any relevant samples.
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